RPS-BLAST 2.2.26 [Sep-21-2011]
Database: CDD.v3.10
44,354 sequences; 10,937,602 total letters
Searching..................................................done
Query= psy10869
(163 letters)
>gnl|CDD|132804 cd06894, PX_SNX3_like, The phosphoinositide binding Phox Homology
domain of Sorting Nexin 3 and related proteins. The PX
domain is a phosphoinositide (PI) binding module present
in many proteins with diverse functions. Sorting nexins
(SNXs) make up the largest group among PX domain
containing proteins. They are involved in regulating
membrane traffic and protein sorting in the endosomal
system. The PX domain of SNXs binds PIs and targets the
protein to PI-enriched membranes. SNXs differ from each
other in PI-binding specificity and affinity, and the
presence of other protein-protein interaction domains,
which help determine subcellular localization and
specific function in the endocytic pathway. This
subfamily is composed of SNX3, SNX12, and fungal Grd19.
Grd19 is involved in the localization of late Golgi
membrane proteins in yeast. SNX3/Grp19 associates with
the retromer complex, a membrane coat multimeric complex
required for endosomal retrieval of lysosomal hydrolase
receptors to the Golgi, and functions as a
cargo-specific adaptor for the retromer.
Length = 123
Score = 254 bits (650), Expect = 9e-89
Identities = 109/123 (88%), Positives = 118/123 (95%)
Query: 29 FLEIDVVNPITHGVAKKRYTDYEVRMKTNLPVFKTKDSNVRRRYSDFEWLRNELERDSKI 88
FLEIDVVNP THGV KKR+TDYEVRM+TNLPVFK K+S+VRRRYSDFEWLR+ELERDSKI
Sbjct: 1 FLEIDVVNPQTHGVGKKRFTDYEVRMRTNLPVFKKKESSVRRRYSDFEWLRSELERDSKI 60
Query: 89 VVPPLPGKAWKRQMPFRGDDGIFEEEFIEDRRKGLETFINKIAGHPLAQNERCLHMFLQE 148
VVPPLPGKA KRQ+PFRGDDGIFEEEFIE+RRKGLETFINK+AGHPLAQNE+CLHMFLQE
Sbjct: 61 VVPPLPGKALKRQLPFRGDDGIFEEEFIEERRKGLETFINKVAGHPLAQNEKCLHMFLQE 120
Query: 149 PTI 151
TI
Sbjct: 121 ETI 123
>gnl|CDD|132827 cd07294, PX_SNX12, The phosphoinositide binding Phox Homology
domain of Sorting Nexin 12. The PX domain is a
phosphoinositide (PI) binding module present in many
proteins with diverse functions. Sorting nexins (SNXs)
make up the largest group among PX domain containing
proteins. They are involved in regulating membrane
traffic and protein sorting in the endosomal system. The
PX domain of SNXs binds PIs and targets the protein to
PI-enriched membranes. SNXs differ from each other in
PI-binding specificity and affinity, and the presence of
other protein-protein interaction domains, which help
determine subcellular localization and specific function
in the endocytic pathway. Some SNXs are localized in
early endosome structures such as clathrin-coated pits,
while others are located in late structures of the
endocytic pathway. The specific function of SNX12 has
yet to be elucidated.
Length = 132
Score = 225 bits (574), Expect = 4e-77
Identities = 106/132 (80%), Positives = 120/132 (90%)
Query: 27 ANFLEIDVVNPITHGVAKKRYTDYEVRMKTNLPVFKTKDSNVRRRYSDFEWLRNELERDS 86
+NFLEID+ NP T GV + R+T YEVRM+TNLP+FK K+S VRRRYSDFEWL+NELERDS
Sbjct: 1 SNFLEIDIFNPQTVGVGRNRFTTYEVRMRTNLPIFKLKESCVRRRYSDFEWLKNELERDS 60
Query: 87 KIVVPPLPGKAWKRQMPFRGDDGIFEEEFIEDRRKGLETFINKIAGHPLAQNERCLHMFL 146
KIVVPPLPGKA KRQ+PFRGD+GIFEE FIE+RR+GLE FINKIAGHPLAQNERCLHMFL
Sbjct: 61 KIVVPPLPGKALKRQLPFRGDEGIFEESFIEERRQGLEQFINKIAGHPLAQNERCLHMFL 120
Query: 147 QEPTIDKNYVPG 158
Q+ TID+NYVPG
Sbjct: 121 QDETIDRNYVPG 132
>gnl|CDD|132826 cd07293, PX_SNX3, The phosphoinositide binding Phox Homology domain
of Sorting Nexin 3. The PX domain is a phosphoinositide
(PI) binding module present in many proteins with
diverse functions. Sorting nexins (SNXs) make up the
largest group among PX domain containing proteins. They
are involved in regulating membrane traffic and protein
sorting in the endosomal system. The PX domain of SNXs
binds PIs and targets the protein to PI-enriched
membranes. SNXs differ from each other in PI-binding
specificity and affinity, and the presence of other
protein-protein interaction domains, which help
determine subcellular localization and specific function
in the endocytic pathway. SNX3 associates with early
endosomes through a PX domain-mediated interaction with
phosphatidylinositol-3-phosphate (PI3P). It associates
with the retromer complex, a membrane coat multimeric
complex required for endosomal retrieval of lysosomal
hydrolase receptors to the Golgi, and functions as a
cargo-specific adaptor for the retromer. SNX3 is
required for the formation of multivesicular bodies,
which function as transport intermediates to late
endosomes. It also promotes cell surface expression of
the amiloride-sensitive epithelial Na+ channel (ENaC),
which is critical in sodium homeostasis and maintenance
of extracellular fluid volume.
Length = 123
Score = 202 bits (515), Expect = 3e-68
Identities = 91/123 (73%), Positives = 109/123 (88%)
Query: 29 FLEIDVVNPITHGVAKKRYTDYEVRMKTNLPVFKTKDSNVRRRYSDFEWLRNELERDSKI 88
FLEIDV NP T GV + R+T YE+R+KTNLP+FK K+S VRRRYSDFEWLR+ELER+SK+
Sbjct: 1 FLEIDVTNPQTVGVGRGRFTTYEIRLKTNLPIFKLKESTVRRRYSDFEWLRSELERESKV 60
Query: 89 VVPPLPGKAWKRQMPFRGDDGIFEEEFIEDRRKGLETFINKIAGHPLAQNERCLHMFLQE 148
VVPPLPGKA RQ+PFRGDDGIF++ FIE+R++GLE F+NK+AGHPLAQNERCLHMFLQ+
Sbjct: 61 VVPPLPGKALFRQLPFRGDDGIFDDSFIEERKQGLEQFLNKVAGHPLAQNERCLHMFLQD 120
Query: 149 PTI 151
I
Sbjct: 121 EII 123
>gnl|CDD|132828 cd07295, PX_Grd19, The phosphoinositide binding Phox Homology
domain of fungal Grd19. The PX domain is a
phosphoinositide (PI) binding module present in many
proteins with diverse functions. Sorting nexins (SNXs)
make up the largest group among PX domain containing
proteins. They are involved in regulating membrane
traffic and protein sorting in the endosomal system. The
PX domain of SNXs binds PIs and targets the protein to
PI-enriched membranes. SNXs differ from each other in
PI-binding specificity and affinity, and the presence of
other protein-protein interaction domains, which help
determine subcellular localization and specific function
in the endocytic pathway. Grd19 is involved in the
localization of late Golgi membrane proteins in yeast.
Grp19 associates with the retromer complex, a membrane
coat multimeric complex required for endosomal retrieval
of lysosomal hydrolase receptors to the Golgi, and
functions as a cargo-specific adaptor for the retromer.
Length = 116
Score = 128 bits (324), Expect = 3e-39
Identities = 62/123 (50%), Positives = 87/123 (70%), Gaps = 11/123 (8%)
Query: 29 FLEIDVVNPITHGVAKKRYTDYEVRMKTNLPVFKTKDSNVRRRYSDFEWLRNELERDS-K 87
FLEI+V NP THG+ + +TDYE+ +TN+P FK + S+VRRRYSDFE+ R+ LER+S +
Sbjct: 1 FLEIEVRNPKTHGIGRGMFTDYEIVCRTNIPAFKLRVSSVRRRYSDFEYFRDILERESPR 60
Query: 88 IVVPPLPGKAWKRQMPFRGDDGIFEEEFIEDRRKGLETFINKIAGHPLAQN-ERCLHMFL 146
+++PPLPGK + + F +E IE+RR+GLETF+ +AGHPL Q + L FL
Sbjct: 61 VMIPPLPGKIFTNR---------FSDEVIEERRQGLETFLQSVAGHPLLQTGSKVLAAFL 111
Query: 147 QEP 149
Q+P
Sbjct: 112 QDP 114
>gnl|CDD|132769 cd06859, PX_SNX1_2_like, The phosphoinositide binding Phox Homology
domain of Sorting Nexins 1 and 2. The PX domain is a
phosphoinositide (PI) binding module present in many
proteins with diverse functions. Sorting nexins (SNXs)
make up the largest group among PX domain containing
proteins. They are involved in regulating membrane
traffic and protein sorting in the endosomal system. The
PX domain of SNXs binds PIs and targets the protein to
PI-enriched membranes. SNXs differ from each other in
PI-binding specificity and affinity, and the presence of
other protein-protein interaction domains, which help
determine subcellular localization and specific function
in the endocytic pathway. This subfamily consists of
SNX1, SNX2, and similar proteins. They harbor a
Bin/Amphiphysin/Rvs (BAR) domain, which detects membrane
curvature, C-terminal to the PX domain. Both domains
have been shown to determine the specific
membrane-targeting of SNX1. SNX1 and SNX2 are components
of the retromer complex, a membrane coat multimeric
complex required for endosomal retrieval of lysosomal
hydrolase receptors to the Golgi. The retromer consists
of a cargo-recognition subcomplex and a subcomplex
formed by a dimer of sorting nexins (SNX1 and/or SNX2),
which ensures effcient cargo sorting by facilitating
proper membrane localization of the cargo-recognition
subcomplex.
Length = 114
Score = 110 bits (278), Expect = 3e-32
Identities = 47/119 (39%), Positives = 60/119 (50%), Gaps = 8/119 (6%)
Query: 30 LEIDVVNPITHGVAKKRYTDYEVRMKTNLPVFKTKDSNVRRRYSDFEWLRNELERDSK-I 88
EI V +P+ G Y Y V KTNLP FK + +V RRYSDF WL L
Sbjct: 1 FEISVTDPVKVGDGMSAYVVYRVTTKTNLPDFKKSEFSVLRRYSDFLWLYERLVEKYPGR 60
Query: 89 VVPPLPGKAWKRQMPFRGDDGIFEEEFIEDRRKGLETFINKIAGHPLAQNERCLHMFLQ 147
+VPP P K Q R + EFIE RR LE F+ +IA HP+ + + +FL+
Sbjct: 61 IVPPPPEK----QAVGRFKV---KFEFIEKRRAALERFLRRIAAHPVLRKDPDFRLFLE 112
>gnl|CDD|132808 cd06898, PX_SNX10, The phosphoinositide binding Phox Homology
domain of Sorting Nexin 10. The PX domain is a
phosphoinositide (PI) binding module present in many
proteins with diverse functions. Sorting nexins (SNXs)
make up the largest group among PX domain containing
proteins. They are involved in regulating membrane
traffic and protein sorting in the endosomal system. The
PX domain of SNXs binds PIs and targets the protein to
PI-enriched membranes. SNXs differ from each other in
PI-binding specificity and affinity, and the presence of
other protein-protein interaction domains, which help
determine subcellular localization and specific function
in the endocytic pathway. Some SNXs are localized in
early endosome structures such as clathrin-coated pits,
while others are located in late structures of the
endocytic pathway. SNX10 may be involved in the
regulation of endosome homeostasis. Its expression
induces the formation of giant vacuoles in mammalian
cells.
Length = 113
Score = 101 bits (253), Expect = 2e-28
Identities = 47/118 (39%), Positives = 72/118 (61%), Gaps = 10/118 (8%)
Query: 32 IDVVNPITHGVAKK-RYTDYEVRMKTNLPVFKTKDSNVRRRYSDFEWLRNELERDSKIV- 89
++V +P TH YTDYE+ + TN F K S VRRRYS+F WLRN L++++ ++
Sbjct: 2 VEVRDPRTHKEDDWGSYTDYEIFLHTNSMCFTLKTSCVRRRYSEFVWLRNRLQKNALLIQ 61
Query: 90 VPPLPGKAWKRQMPFRGDDGIFEEEFIEDRRKGLETFINKIAGHPLAQNERCLHMFLQ 147
+P LP K + R ++ E FIE+R++GL+ F+ K+ PL ++ LH+FLQ
Sbjct: 62 LPSLPPK----NLFGRFNN----EGFIEERQQGLQDFLEKVLQTPLLLSDSRLHLFLQ 111
>gnl|CDD|216119 pfam00787, PX, PX domain. PX domains bind to phosphoinositides.
Length = 109
Score = 97.8 bits (244), Expect = 3e-27
Identities = 49/123 (39%), Positives = 64/123 (52%), Gaps = 16/123 (13%)
Query: 28 NFLEIDVVNPITHGVAKKRYTDYEVRMKTNLPVFKTKDSNVRRRYSDFEWLRNELERDSK 87
L++ VV+P G K Y YEV KTNL K+ +V+RRYSDFE L +L R
Sbjct: 2 PILQVVVVDPEKSG-KKHTYYLYEVTTKTNL-----KEWSVKRRYSDFEELHKQLLRKFP 55
Query: 88 -IVVPPLPGKAWKRQMPFRGDDGIFEEEFIEDRRKGLETFINKIAGHPLAQNERCLHMFL 146
++PPLP K G F EEFIE RRKGLE ++ ++ HP N + FL
Sbjct: 56 GRIIPPLPPKKL---------FGRFSEEFIEKRRKGLEEYLQRLLQHPELSNSEVVLEFL 106
Query: 147 QEP 149
+
Sbjct: 107 ESD 109
>gnl|CDD|132771 cd06861, PX_Vps5p, The phosphoinositide binding Phox Homology
domain of yeast sorting nexin Vps5p. The PX domain is a
phosphoinositide (PI) binding module present in many
proteins with diverse functions. Sorting nexins (SNXs)
make up the largest group among PX domain containing
proteins. They are involved in regulating membrane
traffic and protein sorting in the endosomal system. The
PX domain of SNXs binds PIs and targets the protein to
PI-enriched membranes. SNXs differ from each other in
PI-binding specificity and affinity, and the presence of
other protein-protein interaction domains, which help
determine subcellular localization and specific function
in the endocytic pathway. Vsp5p is the yeast counterpart
of human SNX1 and is part of the retromer complex, which
functions in the endosome-to-Golgi retrieval of vacuolar
protein sorting receptor Vps10p, the Golgi-resident
membrane protein A-ALP, and endopeptidase Kex2. The PX
domain of Vps5p binds phosphatidylinositol-3-phosphate
(PI3P). Similar to SNX1, Vps5p contains a
Bin/Amphiphysin/Rvs (BAR) domain, which detects membrane
curvature, C-terminal to the PX domain. Both domains
have been shown to determine the specific
membrane-targeting of SNX1.
Length = 112
Score = 95.5 bits (238), Expect = 3e-26
Identities = 42/120 (35%), Positives = 61/120 (50%), Gaps = 12/120 (10%)
Query: 30 LEIDVVNPITHGVAKKRYTDYEVRMKTNLPVFKTKDSNVRRRYSDFEWLRNELERDSK-I 88
EI V +P G +T Y VR +T P F+ +V RRY DF WL +L+ + +
Sbjct: 1 FEITVGDPHKVGDLTSAHTVYTVRTRTTSPNFEVSSFSVLRRYRDFRWLYRQLQNNHPGV 60
Query: 89 VVPPLPGK-AWKRQMPFRGDDGIFEEEFIEDRRKGLETFINKIAGHPLAQNERCLHMFLQ 147
+VPP P K + R F++ F+E RR LE + KIA HP+ Q + +FL+
Sbjct: 61 IVPPPPEKQSVGR----------FDDNFVEQRRAALEKMLRKIANHPVLQKDPDFRLFLE 110
>gnl|CDD|132773 cd06863, PX_Atg24p, The phosphoinositide binding Phox Homology
domain of yeast Atg24p, an autophagic degradation
protein. The PX domain is a phosphoinositide (PI)
binding module present in many proteins with diverse
functions. The yeast Atg24p is a sorting nexin (SNX)
which is involved in membrane fusion events at the
vacuolar surface during pexophagy. This is facilitated
via binding of Atg24p to phosphatidylinositol
3-phosphate (PI3P) through its PX domain. SNXs make up
the largest group among PX domain containing proteins.
They are involved in regulating membrane traffic and
protein sorting in the endosomal system. The PX domain
of SNXs binds PIs and targets the protein to PI-enriched
membranes. SNXs differ from each other in PI-binding
specificity and affinity, and the presence of other
protein-protein interaction domains, which help
determine subcellular localization and specific function
in the endocytic pathway.
Length = 118
Score = 93.5 bits (233), Expect = 2e-25
Identities = 49/123 (39%), Positives = 62/123 (50%), Gaps = 8/123 (6%)
Query: 30 LEIDVVNPI--THGVAKKRYTDYEVRMKTNLPVFKTKDSNVRRRYSDFEWLRNELERD-S 86
LE V +P G + Y Y + KTNLP F K+ VRRRYSDF +L L D
Sbjct: 1 LECLVSDPQKELDG-SSDTYISYLITTKTNLPSFSRKEFKVRRRYSDFVFLHECLSNDFP 59
Query: 87 KIVVPPLPGKAWKRQMPFRGDDGIFEEEFIEDRRKGLETFINKIAGHPLAQNERCLHMFL 146
VVPPLP K R GD F EFI R + L+ F+ +I+ HP+ + LH FL
Sbjct: 60 ACVVPPLPDK--HRLEYITGDR--FSPEFITRRAQSLQRFLRRISLHPVLSQSKILHQFL 115
Query: 147 QEP 149
+
Sbjct: 116 ESS 118
>gnl|CDD|214610 smart00312, PX, PhoX homologous domain, present in p47phox and
p40phox. Eukaryotic domain of unknown function present
in phox proteins, PLD isoforms, a PI3K isoform.
Length = 105
Score = 85.5 bits (212), Expect = 2e-22
Identities = 42/116 (36%), Positives = 59/116 (50%), Gaps = 13/116 (11%)
Query: 34 VVNPITHGVAKKRYTDYEVRMKTNLPVFKTKDSNVRRRYSDFEWLRNELERD-SKIVVPP 92
VV P G K Y E+ KT L ++ V RRYSDF L ++L++ + ++PP
Sbjct: 1 VVEPEKIGDGKHYYYVIEIETKTGL-----EEWTVSRRYSDFLELHSKLKKHFPRSILPP 55
Query: 93 LPGKAWKRQMPFRGDDGIFEEEFIEDRRKGLETFINKIAGHP-LAQNERCLHMFLQ 147
LPGK G F EEFIE RR+GLE ++ + HP L + + FL+
Sbjct: 56 LPGKKLF------GRLNNFSEEFIEKRRRGLEKYLQSLLNHPELINHSEVVLEFLE 105
>gnl|CDD|227680 COG5391, COG5391, Phox homology (PX) domain protein [Intracellular
trafficking and secretion / General function prediction
only].
Length = 524
Score = 92.2 bits (229), Expect = 2e-22
Identities = 47/165 (28%), Positives = 79/165 (47%), Gaps = 21/165 (12%)
Query: 16 KQTLDDAYAAPANFLEIDVVNPITHGV---AKKRYTDYEVRMKTNLPVF---KTKDSNVR 69
+ L ++ F+ V NP + + ++ ++T YE+ TNLP F +++ VR
Sbjct: 117 QPPLSTSHTILDYFISSTVSNPQSLTLLVDSRDKHTSYEIITVTNLPSFQLRESRPLVVR 176
Query: 70 RRYSDFEWLRNELERDS-KIVVPPLPGKAWKRQMPFRGDDGIFEEEFIEDRRKGLETFIN 128
RRYSDFE L + L + +PPLP K + + GD F +EFIE+RR+ L+ F+
Sbjct: 177 RRYSDFESLHSILIKLLPLCAIPPLPSKKSNSE--YYGDR--FSDEFIEERRQSLQNFLR 232
Query: 129 KIAGHPLAQN----------ERCLHMFLQEPTIDKNYVPGKIRNT 163
+++ HPL N L F++ + + +T
Sbjct: 233 RVSTHPLLSNYKNSKSWESHSTLLSSFIENRKSVPTPLSLDLTST 277
>gnl|CDD|132768 cd06093, PX_domain, The Phox Homology domain, a phosphoinositide
binding module. The PX domain is a phosphoinositide
(PI) binding module involved in targeting proteins to
membranes. Proteins containing PX domains interact with
PIs and have been implicated in highly diverse functions
such as cell signaling, vesicular trafficking, protein
sorting, lipid modification, cell polarity and division,
activation of T and B cells, and cell survival. Many
members of this superfamily bind
phosphatidylinositol-3-phosphate (PI3P) but in some
cases, other PIs such as PI4P or PI(3,4)P2, among
others, are the preferred substrates. In addition to
protein-lipid interaction, the PX domain may also be
involved in protein-protein interaction, as in the cases
of p40phox, p47phox, and some sorting nexins (SNXs). The
PX domain is conserved from yeast to humans and is found
in more than 100 proteins. The majority of PX
domain-containing proteins are SNXs, which play
important roles in endosomal sorting.
Length = 106
Score = 80.9 bits (200), Expect = 2e-20
Identities = 35/118 (29%), Positives = 56/118 (47%), Gaps = 14/118 (11%)
Query: 31 EIDVVNPITHGVAKKRYTDYEVRMKTNLPVFKTKDSNVRRRYSDFEWLRNELERD-SKIV 89
+ + + K+Y Y + + T ++ V RRYSDFE L +L++ ++
Sbjct: 1 SVSIPDYEKVKDGGKKYVVYIIEVTTQ----GGEEWTVYRRYSDFEELHEKLKKKFPGVI 56
Query: 90 VPPLPGKAWKRQMPFRGDDGIFEEEFIEDRRKGLETFINKIAGHPLAQNERCLHMFLQ 147
+PPLP K G + EFIE+RRK LE ++ + HP +N L FL+
Sbjct: 57 LPPLPPKKLF---------GNLDPEFIEERRKQLEQYLQSLLNHPELRNSEELKEFLE 105
>gnl|CDD|132770 cd06860, PX_SNX7_30_like, The phosphoinositide binding Phox
Homology domain of Sorting Nexins 7 and 30. The PX
domain is a phosphoinositide (PI) binding module present
in many proteins with diverse functions. Sorting nexins
(SNXs) make up the largest group among PX domain
containing proteins. They are involved in regulating
membrane traffic and protein sorting in the endosomal
system. The PX domain of SNXs binds PIs and targets the
protein to PI-enriched membranes. SNXs differ from each
other in PI-binding specificity and affinity, and the
presence of other protein-protein interaction domains,
which help determine subcellular localization and
specific function in the endocytic pathway. Some SNXs
are localized in early endosome structures such as
clathrin-coated pits, while others are located in late
structures of the endocytic pathway. This subfamily
consists of SNX7, SNX30, and similar proteins. They
harbor a Bin/Amphiphysin/Rvs (BAR) domain, which detects
membrane curvature, C-terminal to the PX domain, similar
to the sorting nexins SNX1-2, SNX4-6, SNX8, and SNX32.
Both domains have been shown to determine the specific
membrane-targeting of SNX1. The specific function of the
sorting nexins in this subfamily has yet to be
elucidated.
Length = 116
Score = 80.5 bits (199), Expect = 2e-20
Identities = 43/118 (36%), Positives = 58/118 (49%), Gaps = 6/118 (5%)
Query: 30 LEIDVVNPITHGVAKKRYTDYEVRMKTNLPVFKTKDSNVRRRYSDFEWLRNELERDSK-I 88
L I V NP H + Y Y V KT F + + +VRRRY DF WLR +LE
Sbjct: 1 LFITVDNPEKHVTTLETYITYRVTTKTTRSEFDSSEYSVRRRYQDFLWLRQKLEESHPTH 60
Query: 89 VVPPLPGKAWKRQMPFRGDDGIFEEEFIEDRRKGLETFINKIAGHPLAQNERCLHMFL 146
++PPLP K + + R F EF+ R + L F+N+I HP+ L +FL
Sbjct: 61 IIPPLPEKHSVKGLLDR-----FSPEFVATRMRALHKFLNRIVEHPVLSFNEHLKVFL 113
>gnl|CDD|132817 cd07284, PX_SNX7, The phosphoinositide binding Phox Homology domain
of Sorting Nexin 7. The PX domain is a phosphoinositide
(PI) binding module present in many proteins with
diverse functions. Sorting nexins (SNXs) make up the
largest group among PX domain containing proteins. They
are involved in regulating membrane traffic and protein
sorting in the endosomal system. The PX domain of SNXs
binds PIs and targets the protein to PI-enriched
membranes. SNXs differ from each other in PI-binding
specificity and affinity, and the presence of other
protein-protein interaction domains, which help
determine subcellular localization and specific function
in the endocytic pathway. Some SNXs are localized in
early endosome structures such as clathrin-coated pits,
while others are located in late structures of the
endocytic pathway. SNX7 harbors a Bin/Amphiphysin/Rvs
(BAR) domain, which detects membrane curvature,
C-terminal to the PX domain, similar to the sorting
nexins SNX1-2, SNX4-6, SNX8, SNX30, and SNX32. Both
domains have been shown to determine the specific
membrane-targeting of SNX1. The specific function of
SNX7 has yet to be elucidated.
Length = 116
Score = 76.2 bits (187), Expect = 1e-18
Identities = 45/116 (38%), Positives = 60/116 (51%), Gaps = 6/116 (5%)
Query: 32 IDVVNPITHGVAKKRYTDYEVRMKTNLPVFKTKDSNVRRRYSDFEWLRNELER-DSKIVV 90
I V P +H A + + Y V KT+ F + + VRRRY DF WL+ LE +++
Sbjct: 3 ITVDEPESHVTAIETFITYRVMTKTSRSEFDSSEFEVRRRYQDFLWLKGRLEEAHPTLII 62
Query: 91 PPLPGKAWKRQMPFRGDDGIFEEEFIEDRRKGLETFINKIAGHPLAQNERCLHMFL 146
PPLP K + M R F E+FIE RRK L F+N+IA HP +FL
Sbjct: 63 PPLPEKFVMKGMVER-----FNEDFIETRRKALHKFLNRIADHPTLTFNEDFKIFL 113
>gnl|CDD|132816 cd07283, PX_SNX30, The phosphoinositide binding Phox Homology
domain of Sorting Nexin 30. The PX domain is a
phosphoinositide (PI) binding module present in many
proteins with diverse functions. Sorting nexins (SNXs)
make up the largest group among PX domain containing
proteins. They are involved in regulating membrane
traffic and protein sorting in the endosomal system. The
PX domain of SNXs binds PIs and targets the protein to
PI-enriched membranes. SNXs differ from each other in
PI-binding specificity and affinity, and the presence of
other protein-protein interaction domains, which help
determine subcellular localization and specific function
in the endocytic pathway. Some SNXs are localized in
early endosome structures such as clathrin-coated pits,
while others are located in late structures of the
endocytic pathway. SNX30 harbors a Bin/Amphiphysin/Rvs
(BAR) domain, which detects membrane curvature,
C-terminal to the PX domain, similar to the sorting
nexins SNX1-2, SNX4-8, and SNX32. Both domains have been
shown to determine the specific membrane-targeting of
SNX1. The specific function of SNX30 has yet to be
elucidated.
Length = 116
Score = 70.9 bits (173), Expect = 1e-16
Identities = 45/118 (38%), Positives = 62/118 (52%), Gaps = 6/118 (5%)
Query: 30 LEIDVVNPITHGVAKKRYTDYEVRMKTNLPVFKTKDSNVRRRYSDFEWLRNELERDSKI- 88
L + V +P H + Y Y V KT F + +VRRRY DF+WLRN+LE
Sbjct: 1 LFVTVDDPKKHVCTMETYITYRVTTKTTRTEFDLPEYSVRRRYQDFDWLRNKLEESQPTH 60
Query: 89 VVPPLPGKAWKRQMPFRGDDGIFEEEFIEDRRKGLETFINKIAGHPLAQNERCLHMFL 146
++PPLP K +G F EEF+E RRK L+ F+ +IA HP+ ++FL
Sbjct: 61 LIPPLPEK-----FVVKGVVDRFSEEFVETRRKALDKFLKRIADHPVLSFNEHFNVFL 113
>gnl|CDD|132774 cd06864, PX_SNX4, The phosphoinositide binding Phox Homology domain
of Sorting Nexin 4. The PX domain is a phosphoinositide
(PI) binding module present in many proteins with
diverse functions. Sorting nexins (SNXs) make up the
largest group among PX domain containing proteins. They
are involved in regulating membrane traffic and protein
sorting in the endosomal system. The PX domain of SNXs
binds PIs and targets the protein to PI-enriched
membranes. SNXs differ from each other in PI-binding
specificity and affinity, and the presence of other
protein-protein interaction domains, which help
determine subcellular localization and specific function
in the endocytic pathway. SNX4 is involved in recycling
traffic from the sorting endosome (post-Golgi endosome)
back to the late Golgi. It shows a similar domain
architecture as SNX1-2, among others, containing a
Bin/Amphiphysin/Rvs (BAR) domain, which detects membrane
curvature, C-terminal to the PX domain. SNX4 is
implicated in the regulation of plasma membrane receptor
trafficking and interacts with receptors for EGF,
insulin, platelet-derived growth factor and the long
form of the leptin receptor.
Length = 129
Score = 69.3 bits (170), Expect = 8e-16
Identities = 40/112 (35%), Positives = 57/112 (50%), Gaps = 10/112 (8%)
Query: 44 KKRYTDYEVRMK---TNLPVFKTKD-SNVRRRYSDFEWLRNELERD-SKIVVPPLPGKAW 98
K+ YT Y + K +K S++ RRYS+FE LRN L ++VPPLP K
Sbjct: 20 KETYTVYLIETKIVEHESEEGLSKKLSSLWRRYSEFELLRNYLVVTYPYVIVPPLPEK-- 77
Query: 99 KRQMPF--RGDDGIFEEEFIEDRRKGLETFINKIAGHPLAQNERCLHMFLQE 148
R M + F+ +F+E RR GLE F+ ++AGHP ++ FL
Sbjct: 78 -RAMFMWQKLSSDTFDPDFVERRRAGLENFLLRVAGHPELCQDKIFLEFLTH 128
>gnl|CDD|132776 cd06866, PX_SNX8_Mvp1p_like, The phosphoinositide binding Phox
Homology domain of Sorting Nexin 8 and yeast Mvp1p. The
PX domain is a phosphoinositide (PI) binding module
present in many proteins with diverse functions. Sorting
nexins (SNXs) make up the largest group among PX domain
containing proteins. They are involved in regulating
membrane traffic and protein sorting in the endosomal
system. The PX domain of SNXs binds PIs and targets the
protein to PI-enriched membranes. SNXs differ from each
other in PI-binding specificity and affinity, and the
presence of other protein-protein interaction domains,
which help determine subcellular localization and
specific function in the endocytic pathway. Some SNXs
are localized in early endosome structures such as
clathrin-coated pits, while others are located in late
structures of the endocytic pathway. SNX8 and the yeast
counterpart Mvp1p are involved in sorting and delivery
of late-Golgi proteins, such as carboxypeptidase Y, to
vacuoles.
Length = 105
Score = 65.7 bits (161), Expect = 1e-14
Identities = 38/105 (36%), Positives = 52/105 (49%), Gaps = 17/105 (16%)
Query: 46 RYTDYEVRMKTNLPVFKTKDSNVRRRYSDFEWLRNEL-ERDSKIVVPPLPGKAWKRQMPF 104
++ +YEV K S V RRYSDF WL L +R +VP LP K ++
Sbjct: 17 KHVEYEV-------SSKRFKSTVYRRYSDFVWLHEYLLKRYPYRMVPALPPK----RIGG 65
Query: 105 RGDDGIFEEEFIEDRRKGLETFINKIAGHPLAQNERCLHMFLQEP 149
D EF+E RR+GL F+N +A HP+ + + FL EP
Sbjct: 66 SADR-----EFLEARRRGLSRFLNLVARHPVLSEDELVRTFLTEP 105
>gnl|CDD|132772 cd06862, PX_SNX9_18_like, The phosphoinositide binding Phox
Homology domain of Sorting Nexins 9 and 18. The PX
domain is a phosphoinositide (PI) binding module present
in many proteins with diverse functions. Sorting nexins
(SNXs) make up the largest group among PX domain
containing proteins. They are involved in regulating
membrane traffic and protein sorting in the endosomal
system. The PX domain of SNXs binds PIs and targets the
protein to PI-enriched membranes. SNXs differ from each
other in PI-binding specificity and affinity, and the
presence of other protein-protein interaction domains,
which help determine subcellular localization and
specific function in the endocytic pathway. This
subfamily consists of SNX9, SNX18, and similar proteins.
They contain an N-terminal Src Homology 3 (SH3) domain,
a PX domain, and a C-terminal Bin/Amphiphysin/Rvs (BAR)
domain. SNX9 is localized to plasma membrane endocytic
sites and acts primarily in clathrin-mediated
endocytosis, while SNX18 is localized to peripheral
endosomal structures, and acts in a trafficking pathway
that is clathrin-independent but relies on AP-1 and
PACS1.
Length = 125
Score = 65.8 bits (161), Expect = 1e-14
Identities = 37/82 (45%), Positives = 48/82 (58%), Gaps = 12/82 (14%)
Query: 68 VRRRYSDFEWLRNEL-ERDSKIVVPPLPGKAWKRQMPFRGDDGIFEEEFIEDRRKGLETF 126
V RRY F+WL L E+ S I +PPLP K G FEE+FIE RR+ LE +
Sbjct: 34 VSRRYKHFDWLYERLVEKYSCIAIPPLPEKQVT---------GRFEEDFIEKRRERLELW 84
Query: 127 INKIAGHP-LAQNERCLHMFLQ 147
+N++A HP L+Q+E H FL
Sbjct: 85 MNRLARHPVLSQSEVFRH-FLT 105
>gnl|CDD|132807 cd06897, PX_SNARE, The phosphoinositide binding Phox Homology
domain of SNARE proteins from fungi. The PX domain is a
phosphoinositide (PI) binding module present in many
proteins with diverse functions such as cell signaling,
vesicular trafficking, protein sorting, and lipid
modification, among others. This subfamily is composed
of fungal proteins similar to Saccharomyces cerevisiae
Vam7p. They contain an N-terminal PX domain and a
C-terminal SNARE domain. The SNARE (Soluble NSF
attachment protein receptor) family of proteins are
integral membrane proteins that serve as key factors for
vesicular trafficking. Vam7p is anchored at the vacuolar
membrane through the specific interaction of its PX
domain with phosphatidylinositol-3-phosphate (PI3P)
present in bilayers. It plays an essential role in
vacuole fusion. The PX domain is involved in targeting
of proteins to PI-enriched membranes, and may also be
involved in protein-protein interaction.
Length = 108
Score = 63.1 bits (154), Expect = 1e-13
Identities = 34/111 (30%), Positives = 53/111 (47%), Gaps = 15/111 (13%)
Query: 42 VAKKRYTDYEVRMKTNLPVFKTKDSNVRRRYSDFEWLRNELERDSKIVVP-PLPGKAWKR 100
V+ K YT Y ++++ LP+ V RRYS+F L +LE + I P PLP K+W
Sbjct: 10 VSPKPYTVYNIQVR--LPLRSYT---VSRRYSEFVALHKQLESEVGIEPPYPLPPKSW-- 62
Query: 101 QMPFRGDDGIFEEEFIEDRRKGLETFINKIAGHPLA--QNERCLHMFLQEP 149
+ + +E+RR GLE F+ + + +N + FL P
Sbjct: 63 -FLSTSSN----PKLVEERRVGLEAFLRALLNDEDSRWRNSPAVKEFLNLP 108
>gnl|CDD|132814 cd07281, PX_SNX1, The phosphoinositide binding Phox Homology domain
of Sorting Nexin 1. The PX domain is a phosphoinositide
(PI) binding module present in many proteins with
diverse functions. Sorting nexins (SNXs) make up the
largest group among PX domain containing proteins. They
are involved in regulating membrane traffic and protein
sorting in the endosomal system. The PX domain of SNXs
binds PIs and targets the protein to PI-enriched
membranes. SNXs differ from each other in PI-binding
specificity and affinity, and the presence of other
protein-protein interaction domains, which help
determine subcellular localization and specific function
in the endocytic pathway. SNX1 is both membrane
associated and a cytosolic protein that exists as a
tetramer in protein complexes. It can associate
reversibly with membranes of the endosomal compartment,
thereby coating these vesicles. SNX1 is a component of
the retromer complex, a membrane coat multimeric complex
required for endosomal retrieval of lysosomal hydrolase
receptors to the Golgi. The retromer consists of a
cargo-recognition subcomplex and a subcomplex formed by
a dimer of sorting nexins (SNX1 and/or SNX2), which
ensures efficient cargo sorting by facilitating proper
membrane localization of the cargo-recognition
subcomplex. SNX1 contains a Bin/Amphiphysin/Rvs (BAR)
domain C-terminal to the PX domain. The PX domain of
SNX1 specifically binds phosphatidylinositol-3-phosphate
(PI3P) and PI(3,5)P2, while the BAR domain detects
membrane curvature. Both domains help determine the
specific membrane-targeting of SNX1, which is localized
to a microdomain in early endosomes where it regulates
cation-independent mannose-6-phosphate receptor
retrieval to the trans Golgi network.
Length = 124
Score = 62.0 bits (150), Expect = 5e-13
Identities = 38/123 (30%), Positives = 65/123 (52%), Gaps = 4/123 (3%)
Query: 30 LEIDVVNPITHGVAKKRYTDYEVRMKTNLPVFKTKDSNVRRRYSDFEWLRNEL-ERDSK- 87
L++ + +P G Y Y+V +T+L +F++K V+RR+SDF L +L E+ S+
Sbjct: 1 LKVSITDPEKIGDGMNAYVVYKVTTQTSLLMFRSKHFTVKRRFSDFLGLYEKLSEKHSQN 60
Query: 88 -IVVPPLPGKAWKRQMPFR-GDDGIFEEEFIEDRRKGLETFINKIAGHPLAQNERCLHMF 145
+VPP P K+ + G + EF+E RR LE ++ +I HP + + F
Sbjct: 61 GFIVPPPPEKSLIGMTKVKVGKEDSSSAEFLERRRAALERYLQRIVSHPSLLQDPDVREF 120
Query: 146 LQE 148
L++
Sbjct: 121 LEK 123
>gnl|CDD|132813 cd07280, PX_YPT35, The phosphoinositide binding Phox Homology
domain of the fungal protein YPT35. The PX domain is a
phosphoinositide (PI) binding module present in many
proteins with diverse functions such as cell signaling,
vesicular trafficking, protein sorting, and lipid
modification, among others. This subfamily is composed
of YPT35 proteins from the fungal subkingdom Dikarya.
The PX domain is involved in targeting of proteins to
PI-enriched membranes, and may also be involved in
protein-protein interaction. The PX domain of YPT35
binds to phosphatidylinositol 3-phosphate (PI3P). It
also serves as a protein interaction domain, binding to
members of the Yip1p protein family, which localize to
the ER and Golgi. YPT35 is mainly associated with
endosomes and together with Yip1p proteins, may be
involved in a specific function in the endocytic
pathway.
Length = 120
Score = 61.2 bits (149), Expect = 8e-13
Identities = 25/110 (22%), Positives = 46/110 (41%), Gaps = 19/110 (17%)
Query: 45 KRYTDYEVRMKTN----LPVFKTKDSNVRRRYSDFEWLRNEL----ERDSKIVVPPLPGK 96
Y +++ ++T + +RYS+F LR L R + +P LP K
Sbjct: 20 GAYVVWKITIETKDLIGSSI------VAYKRYSEFVQLREALLDEFPRHKRNEIPQLPPK 73
Query: 97 AWKRQMPFRGDDGIFEEEFIEDRRKGLETFINKIAGHPLAQNERCLHMFL 146
P+ + ++E RR+GL+ F+N + +P+ + FL
Sbjct: 74 V-----PWYDSRVNLNKAWLEKRRRGLQYFLNCVLLNPVFGGSPVVKEFL 118
>gnl|CDD|132775 cd06865, PX_SNX_like, The phosphoinositide binding Phox Homology
domain of SNX-like proteins. The PX domain is a
phosphoinositide (PI) binding module present in many
proteins with diverse functions. Sorting nexins (SNXs)
make up the largest group among PX domain containing
proteins. They are involved in regulating membrane
traffic and protein sorting in the endosomal system. The
PX domain of SNXs binds PIs and targets the protein to
PI-enriched membranes. SNXs differ from each other in
PI-binding specificity and affinity, and the presence of
other protein-protein interaction domains, which help
determine subcellular localization and specific function
in the endocytic pathway. Some SNXs are localized in
early endosome structures such as clathrin-coated pits,
while others are located in late structures of the
endocytic pathway. This subfamily is composed of
uncharacterized proteins, predominantly from plants,
with similarity to sorting nexins. A few members show a
similar domain architecture as a subfamily of sorting
nexins, containing a Bin/Amphiphysin/Rvs (BAR) domain,
which detects membrane curvature, C-terminal to the PX
domain. The PX-BAR structural unit is known to determine
specific membrane localization.
Length = 120
Score = 60.5 bits (147), Expect = 1e-12
Identities = 33/106 (31%), Positives = 49/106 (46%), Gaps = 7/106 (6%)
Query: 45 KRYTDYEVRMKTNLPVFKTKDSNVRRRYSDFEWLRNELERDSK-IVVPPLPGKAWKRQMP 103
Y Y+V +TN+P + + VRRR+ D L + L + VPP P K+
Sbjct: 21 PPYISYKVTTRTNIPSYTHGEFTVRRRFRDVVALADRLAEAYRGAFVPPRPDKSVVESQV 80
Query: 104 FRGDDGIFEEEFIEDRRKGLETFINKIAGHPLAQNERCLHMFLQEP 149
+ EFIE RR LE ++N++A HP+ L +FL
Sbjct: 81 MQS------AEFIEQRRVALEKYLNRLAAHPVIGLSDELRVFLTLQ 120
>gnl|CDD|132815 cd07282, PX_SNX2, The phosphoinositide binding Phox Homology domain
of Sorting Nexin 2. The PX domain is a phosphoinositide
(PI) binding module present in many proteins with
diverse functions. Sorting nexins (SNXs) make up the
largest group among PX domain containing proteins. They
are involved in regulating membrane traffic and protein
sorting in the endosomal system. The PX domain of SNXs
binds PIs and targets the protein to PI-enriched
membranes. SNXs differ from each other in PI-binding
specificity and affinity, and the presence of other
protein-protein interaction domains, which help
determine subcellular localization and specific function
in the endocytic pathway. SNX2 is a component of the
retromer complex, a membrane coat multimeric complex
required for endosomal retrieval of lysosomal hydrolase
receptors to the Golgi. The retromer consists of a
cargo-recognition subcomplex and a subcomplex formed by
a dimer of sorting nexins (SNX1 and/or SNX2), which
ensures efficient cargo sorting by facilitating proper
membrane localization of the cargo-recognition
subcomplex. Similar to SNX1, SNX2 contains a
Bin/Amphiphysin/Rvs (BAR) domain, which detects membrane
curvature, C-terminal to the PX domain. The PX domain of
SNX2 preferentially binds
phosphatidylinositol-3-phosphate (PI3P), but not
PI(3,4,5)P3. Studies on mice deficient with SNX1 and/or
SNX2 suggest that they provide an essential function in
embryogenesis and are functionally redundant.
Length = 124
Score = 57.8 bits (139), Expect = 2e-11
Identities = 39/122 (31%), Positives = 58/122 (47%), Gaps = 4/122 (3%)
Query: 30 LEIDVVNPITHGVAKKRYTDYEVRMKTNLPVFKTKDSNVRRRYSDFEWLRNELERDS--- 86
+EI V +P G Y Y V KT+L +F + +VRRR+SDF L ++L
Sbjct: 1 IEIGVSDPEKVGDGMNAYMAYRVTTKTSLSMFSRSEFSVRRRFSDFLGLHSKLASKYLHV 60
Query: 87 KIVVPPLPGKAWKRQMPFR-GDDGIFEEEFIEDRRKGLETFINKIAGHPLAQNERCLHMF 145
+VPP P K+ + G + EF+E RR LE ++ + HP + L F
Sbjct: 61 GYIVPPAPEKSIVGMTKVKVGKEDSSSTEFVEKRRAALERYLQRTVKHPTLLQDPDLRQF 120
Query: 146 LQ 147
L+
Sbjct: 121 LE 122
>gnl|CDD|132777 cd06867, PX_SNX41_42, The phosphoinositide binding Phox Homology
domain of fungal Sorting Nexins 41 and 42. The PX
domain is a phosphoinositide (PI) binding module present
in many proteins with diverse functions. Sorting nexins
(SNXs) make up the largest group among PX domain
containing proteins. They are involved in regulating
membrane traffic and protein sorting in the endosomal
system. The PX domain of SNXs binds PIs and targets the
protein to PI-enriched membranes. SNXs differ from each
other in PI-binding specificity and affinity, and the
presence of other protein-protein interaction domains,
which help determine subcellular localization and
specific function in the endocytic pathway. Some SNXs
are localized in early endosome structures such as
clathrin-coated pits, while others are located in late
structures of the endocytic pathway. SNX41 and SNX42
(also called Atg20p) form dimers with SNX4, and are
required in protein recycling from the sorting endosome
(post-Golgi endosome) back to the late Golgi in yeast.
Length = 112
Score = 54.2 bits (131), Expect = 3e-10
Identities = 31/94 (32%), Positives = 50/94 (53%), Gaps = 13/94 (13%)
Query: 60 VFKTKDSNVRRRYSDFEWLRNELER-DSKIVVPPLPGK------AWKRQMPFRGDDGIFE 112
V + S V+RRYS+FE LR L R +++PP+P K A K P + + +
Sbjct: 22 VIRLGGSEVKRRYSEFESLRKNLTRLYPTLIIPPIPEKHSLKDYAKK---PSKAKN---D 75
Query: 113 EEFIEDRRKGLETFINKIAGHPLAQNERCLHMFL 146
+ IE R++ L+ F+N+ HP+ +N+ FL
Sbjct: 76 AKIIERRKRMLQRFLNRCLQHPILRNDIVFQKFL 109
>gnl|CDD|132819 cd07286, PX_SNX18, The phosphoinositide binding Phox Homology
domain of Sorting Nexin 18. The PX domain is a
phosphoinositide (PI) binding module present in many
proteins with diverse functions. Sorting nexins (SNXs)
make up the largest group among PX domain containing
proteins. They are involved in regulating membrane
traffic and protein sorting in the endosomal system. The
PX domain of SNXs binds PIs and targets the protein to
PI-enriched membranes. SNXs differ from each other in
PI-binding specificity and affinity, and the presence of
other protein-protein interaction domains, which help
determine subcellular localization and specific function
in the endocytic pathway. SNX18, like SNX9, contains an
N-terminal Src Homology 3 (SH3) domain, a PX domain, and
a C-terminal Bin/Amphiphysin/Rvs (BAR) domain, which
detects membrane curvature. The PX-BAR structural unit
helps determine specific membrane localization. SNX18 is
localized to peripheral endosomal structures, and acts
in a trafficking pathway that is clathrin-independent
but relies on AP-1 and PACS1.
Length = 127
Score = 50.8 bits (121), Expect = 9e-09
Identities = 34/96 (35%), Positives = 46/96 (47%), Gaps = 11/96 (11%)
Query: 66 SNVRRRYSDFEWLRNEL-ERDSKIVVPPLPGKAWKRQMPFRGDDGIFEEEFIEDRRKGLE 124
V RRY F+WL L E+ I VP +P K G FEE+FI RRKGL
Sbjct: 32 LQVHRRYKHFDWLYARLAEKFPVISVPHIPEKQ---------ATGRFEEDFISKRRKGLI 82
Query: 125 TFINKIAGHP-LAQNERCLHMFLQEPTIDKNYVPGK 159
+++ + HP LA+ + H T +K + GK
Sbjct: 83 WWMDHMCSHPVLARCDAFQHFLTCPSTDEKAWKQGK 118
>gnl|CDD|132809 cd07276, PX_SNX16, The phosphoinositide binding Phox Homology
domain of Sorting Nexin 16. The PX domain is a
phosphoinositide (PI) binding module present in many
proteins with diverse functions. Sorting nexins (SNXs)
make up the largest group among PX domain containing
proteins. They are involved in regulating membrane
traffic and protein sorting in the endosomal system. The
PX domain of SNXs binds PIs and targets the protein to
PI-enriched membranes. SNXs differ from each other in
PI-binding specificity and affinity, and the presence of
other protein-protein interaction domains, which help
determine subcellular localization and specific function
in the endocytic pathway. SNX16 contains a central PX
domain followed by a coiled-coil region. SNX16 is
localized in early and recycling endosomes through the
binding of its PX domain to
phosphatidylinositol-3-phosphate (PI3P). It plays a role
in epidermal growth factor (EGF) signaling by regulating
EGF receptor membrane trafficking.
Length = 110
Score = 49.7 bits (119), Expect = 1e-08
Identities = 31/102 (30%), Positives = 52/102 (50%), Gaps = 14/102 (13%)
Query: 46 RYTDYEVRMKTNLPVFKTKDS-NVRRRYSDFEWLRNELERDSKIVVPPLPGKAWKRQMPF 104
R+T Y++R++ K DS V RRY+DF L ++L++ LP K W F
Sbjct: 19 RFTVYKIRVEN-----KVGDSWFVFRRYTDFVRLNDKLKQMFPGFRLSLPPKRW-----F 68
Query: 105 RGDDGIFEEEFIEDRRKGLETFINKIAGHPLAQNERCLHMFL 146
+ + F+ +F+E+R+ GL+ F+N I H + + F
Sbjct: 69 KDN---FDPDFLEERQLGLQAFVNNIMAHKDIAKCKLVREFF 107
>gnl|CDD|132824 cd07291, PX_SNX5, The phosphoinositide binding Phox Homology domain
of Sorting Nexin 5. The PX domain is a phosphoinositide
(PI) binding module present in many proteins with
diverse functions. Sorting nexins (SNXs) make up the
largest group among PX domain containing proteins. They
are involved in regulating membrane traffic and protein
sorting in the endosomal system. The PX domain of SNXs
binds PIs and targets the protein to PI-enriched
membranes. SNXs differ from each other in PI-binding
specificity and affinity, and the presence of other
protein-protein interaction domains, which help
determine subcellular localization and specific function
in the endocytic pathway. SNX5, abundantly expressed in
macrophages, regulates macropinocytosis, a process that
enables cells to internalize large amounts of external
solutes. It may also be a component of the retromer
complex, a membrane coat multimeric complex required for
endosomal retrieval of lysosomal hydrolase receptors to
the Golgi, acting as a mammalian equivalent of yeast
Vsp17p. It also binds the Fanconi anaemia
complementation group A protein (FANCA). SNX5 harbors a
Bin/Amphiphysin/Rvs (BAR) domain, which detects membrane
curvature, C-terminal to the PX domain, similar to other
sorting nexins including SNX1-2. The PX-BAR structural
unit helps determine the specific membrane-targeting of
some SNXs. The PX domain of SNX5 binds
phosphatidylinositol-3-phosphate (PI3P) and PI(3,4)P2.
SNX5 is localized to a subdomain of early endosome and
is recruited to the plasma membrane following EGF
stimulation and elevation of PI(3,4)P2 levels.
Length = 141
Score = 48.5 bits (115), Expect = 6e-08
Identities = 37/141 (26%), Positives = 67/141 (47%), Gaps = 27/141 (19%)
Query: 30 LEIDVVNPITHGVAKKRYTDYEVRMKTNLPVFKTKDSNVRRRYSDFEWLRN---ELERDS 86
L+ID I ++++ + V KT LP F++ D +V R++ DF WL + E E +
Sbjct: 3 LQID----IPDALSERDKVKFTVHTKTTLPSFQSPDFSVTRQHEDFIWLHDALIETEDYA 58
Query: 87 KIVVPPLP------GKAWKRQMPFRGDDGIFEEEFIEDRRK--------------GLETF 126
+++PP P G K Q G+ + +EEF + +++ E F
Sbjct: 59 GLIIPPAPPKPDFDGPREKMQKLGEGEGSMTKEEFAKMKQELEAEYLAVFKKTVQVHEVF 118
Query: 127 INKIAGHPLAQNERCLHMFLQ 147
+ +++ HP +R H+FL+
Sbjct: 119 LQRLSSHPSLSKDRNFHIFLE 139
>gnl|CDD|132781 cd06871, PX_MONaKA, The phosphoinositide binding Phox Homology
domain of Modulator of Na,K-ATPase. The PX domain is a
phosphoinositide (PI) binding module present in many
proteins with diverse functions such as cell signaling,
vesicular trafficking, protein sorting, and lipid
modification, among others. MONaKA (Modulator of
Na,K-ATPase) binds the plasma membrane ion transporter,
Na,K-ATPase, and modulates its enzymatic and ion pump
activities. It modulates brain Na,K-ATPase and may be
involved in regulating electrical excitability and
synaptic transmission. MONaKA contains an N-terminal PX
domain and a C-terminal catalytic kinase domain. The PX
domain interacts with PIs and plays a role in targeting
proteins to PI-enriched membranes.
Length = 120
Score = 44.3 bits (105), Expect = 2e-06
Identities = 27/89 (30%), Positives = 45/89 (50%), Gaps = 13/89 (14%)
Query: 47 YTDYEVRMKTNLPVFKTKDSNVRRRYSDFEWLRNELERDSKIVVPPLPGKAWKRQMPFRG 106
+T+Y +R++ V RRY+DF+ L L+ S I +P LP K M
Sbjct: 21 HTEYIIRVQRG--PSPENSWQVIRRYNDFDLLNASLQI-SGISLP-LPPKKLIGNM---- 72
Query: 107 DDGIFEEEFIEDRRKGLETFINKIAGHPL 135
+ EFI +R++GL+ ++N I +P+
Sbjct: 73 -----DREFIAERQQGLQNYLNVILMNPI 96
>gnl|CDD|132803 cd06893, PX_SNX19, The phosphoinositide binding Phox Homology
domain of Sorting Nexin 19. The PX domain is a
phosphoinositide (PI) binding module present in many
proteins with diverse functions. Sorting nexins (SNXs)
make up the largest group among PX domain containing
proteins. They are involved in regulating membrane
traffic and protein sorting in the endosomal system. The
PX domain of SNXs binds PIs and targets the protein to
PI-enriched membranes. SNXs differ from each other in
PI-binding specificity and affinity, and the presence of
other protein-protein interaction domains, which help
determine subcellular localization and specific function
in the endocytic pathway. SNX19 contains an N-terminal
PXA domain, a central PX domain, and a C-terminal domain
that is conserved in some SNXs. These domains are also
found in SNX13 and SNX14, which also contain a regulator
of G protein signaling (RGS) domain in between the PXA
and PX domains. SNX19 interacts with IA-2, a major
autoantigen found in type-1 diabetes. It inhibits the
conversion of phosphatidylinositol-4,5-bisphosphate
[PI(4,5)P2] to PI(3,4,5)P3, which leads in the decrease
of protein phosphorylation in the Akt signaling pathway,
resulting in apoptosis. SNX19 may also be implicated in
coronary heart disease and thyroid oncocytic tumors.
Length = 132
Score = 44.5 bits (105), Expect = 2e-06
Identities = 29/119 (24%), Positives = 45/119 (37%), Gaps = 17/119 (14%)
Query: 41 GVAKKRYTDYEVRMKT-----------NLPVFKTKDSNVRRRYSDFEWLRNELERDSKI- 88
G YT Y V+ +T V RR+ +F L+ LE + K
Sbjct: 15 GTGTHPYTLYTVQYETILDVQSEQNPNAASEQPLATHTVNRRFREFLTLQTRLEENPKFR 74
Query: 89 -VVPPLPGKAWKRQMPFRGDDGIFEEEFIEDRRKGLETFINKIAGHPLAQNERCLHMFL 146
++ +PF G +++ IE RR LETF+ ++ P N + FL
Sbjct: 75 KIMNVKGPPKRLFDLPF----GNMDKDKIEARRGLLETFLRQLCSIPEISNSEEVQEFL 129
>gnl|CDD|132778 cd06868, PX_HS1BP3, The phosphoinositide binding Phox Homology
domain of HS1BP3. The PX domain is a phosphoinositide
(PI) binding module present in many proteins with
diverse functions such as cell signaling, vesicular
trafficking, protein sorting, and lipid modification,
among others. Hematopoietic lineage cell-specific
protein-1 (HS1) binding protein 3 (HS1BP3) associates
with HS1 proteins through their SH3 domains, suggesting
a role in mediating signaling. It has been reported that
HS1BP3 might affect the IL-2 signaling pathway in
hematopoietic lineage cells. Mutations in HS1BP3 may
also be associated with familial Parkinson disease and
essential tremor. HS1BP3 contains a PX domain, a leucine
zipper, motifs similar to immunoreceptor tyrosine-based
inhibitory motif and proline-rich regions. The PX domain
interacts with PIs and plays a role in targeting
proteins to PI-enriched membranes.
Length = 120
Score = 43.2 bits (102), Expect = 5e-06
Identities = 31/117 (26%), Positives = 46/117 (39%), Gaps = 20/117 (17%)
Query: 39 THGVAKKRYTDYEVRMKTNLPVFKTKDSN--------VRRRYSDFEWLRNEL-ERDSKIV 89
G + Y++ + T L FK+ V ++YS+FE L +L E+ +
Sbjct: 12 IRGKTSSGHVLYQIVVVTRLAAFKSAKHKEEDVVQFMVSKKYSEFEELYKKLSEKYPGTI 71
Query: 90 VPPLPGKAWKRQMPFRGDDGIFEEEFIEDRRKGLETFINKIAGHPLAQNERCLHMFL 146
+PPLP KA F E I +RR F+ I+ N L FL
Sbjct: 72 LPPLPRKAL-----FVS------ESDIRERRAAFNDFMRFISKDEKLANCPELLEFL 117
>gnl|CDD|132787 cd06877, PX_SNX14, The phosphoinositide binding Phox Homology
domain of Sorting Nexin 14. The PX domain is a
phosphoinositide (PI) binding module present in many
proteins with diverse functions. Sorting nexins (SNXs)
make up the largest group among PX domain containing
proteins. They are involved in regulating membrane
traffic and protein sorting in the endosomal system. The
PX domain of SNXs binds PIs and targets the protein to
PI-enriched membranes. SNXs differ from each other in
PI-binding specificity and affinity, and the presence of
other protein-protein interaction domains, which help
determine subcellular localization and specific function
in the endocytic pathway. SNX14 may be involved in
recruiting other proteins to the membrane via
protein-protein and protein-ligand interaction. It is
expressed in the embryonic nervous system of mice, and
is co-expressed in the motoneurons and the anterior
pituary with Islet-1. SNX14 shows a similar domain
architecture as SNX13, containing an N-terminal PXA
domain, a regulator of G protein signaling (RGS) domain,
a PX domain, and a C-terminal domain that is conserved
in some SNXs.
Length = 119
Score = 42.0 bits (99), Expect = 1e-05
Identities = 23/80 (28%), Positives = 36/80 (45%), Gaps = 10/80 (12%)
Query: 68 VRRRYSDFEWLRNEL-ERDSKIVVPPLPGKAWKRQMPFRGDDGIFEEEFIEDRRKGLETF 126
V RRY++F L ++L E + PLP + F EF+E +R+ E F
Sbjct: 46 VLRRYNEFYVLESKLTEFHGEFPDAPLPSRR-----IFGPKSY----EFLESKREIFEEF 96
Query: 127 INKIAGHPLAQNERCLHMFL 146
+ K+ P + L+ FL
Sbjct: 97 LQKLLQKPELRGSELLYDFL 116
>gnl|CDD|132825 cd07292, PX_SNX6, The phosphoinositide binding Phox Homology domain
of Sorting Nexin 6. The PX domain is a phosphoinositide
(PI) binding module present in many proteins with
diverse functions. Sorting nexins (SNXs) make up the
largest group among PX domain containing proteins. They
are involved in regulating membrane traffic and protein
sorting in the endosomal system. The PX domain of SNXs
binds PIs and targets the protein to PI-enriched
membranes. SNXs differ from each other in PI-binding
specificity and affinity, and the presence of other
protein-protein interaction domains, which help
determine subcellular localization and specific function
in the endocytic pathway. SNX6 forms a stable complex
with SNX1 and may be a component of the retromer
complex, a membrane coat multimeric complex required for
endosomal retrieval of lysosomal hydrolase receptors to
the Golgi, acting as a mammalian equivalent of yeast
Vsp17p. It interacts with the receptor serine/threonine
kinases from the transforming growth factor-beta family.
It also plays roles in enhancing the degradation of EGFR
and in regulating the activity of Na,K-ATPase through
its interaction with Translationally Controlled Tumor
Protein (TCTP). SNX6 harbors a Bin/Amphiphysin/Rvs (BAR)
domain, which detects membrane curvature, C-terminal to
the PX domain, similar to other sorting nexins including
SNX1-2. The PX-BAR structural unit helps determine the
specific membrane-targeting of some SNXs.
Length = 141
Score = 42.0 bits (98), Expect = 2e-05
Identities = 31/133 (23%), Positives = 64/133 (48%), Gaps = 23/133 (17%)
Query: 38 ITHGVAKKRYTDYEVRMKTNLPVFKTKDSNVRRRYSDFEWLRN---ELERDSKIVVPPLP 94
I+ ++++ + V K++LP FK + +V R++ +F WL + E E + ++PP P
Sbjct: 7 ISDALSERDKVKFTVHTKSSLPNFKQNEFSVVRQHEEFIWLHDSFVENEDYAGYIIPPAP 66
Query: 95 GKA------WKRQMPFRGDDGIFEEEFIEDRRK--------------GLETFINKIAGHP 134
+ K Q G+ + +EEF + +++ E F+ ++A HP
Sbjct: 67 PRPDFDASREKLQKLGEGEGSMTKEEFTKMKQELEAEYLAIFKKTVAMHEVFLCRVAAHP 126
Query: 135 LAQNERCLHMFLQ 147
+ + + H+FL+
Sbjct: 127 ILRKDLNFHVFLE 139
>gnl|CDD|132791 cd06881, PX_SNX15_like, The phosphoinositide binding Phox Homology
domain of Sorting Nexin 15-like proteins. The PX domain
is a phosphoinositide (PI) binding module present in
many proteins with diverse functions such as cell
signaling, vesicular trafficking, protein sorting, and
lipid modification, among others. Members of this
subfamily have similarity to sorting nexin 15 (SNX15),
which contains an N-terminal PX domain and a C-terminal
Microtubule Interacting and Trafficking (MIT) domain.
SNXs make up the largest group among PX domain
containing proteins. They are involved in regulating
membrane traffic and protein sorting in the endosomal
system. The PX domain of SNXs binds PIs and targets the
protein to PI-enriched membranes. SNX15 plays a role in
protein trafficking processes in the endocytic pathway
and the trans-Golgi network. The PX domain of SNX15
interacts with the PDGF receptor and is responsible for
the membrane association of the protein. Other members
of this subfamily contain an additional C-terminal
kinase domain, similar to human RPK118, which binds
sphingosine kinase and the antioxidant peroxiredoxin-3
(PRDX3). RPK118 may be involved in the transport of
proteins such as PRDX3 from the cytoplasm to its site of
function in the mitochondria.
Length = 117
Score = 40.4 bits (95), Expect = 4e-05
Identities = 36/128 (28%), Positives = 52/128 (40%), Gaps = 29/128 (22%)
Query: 33 DVVNPITHGVAKKRYTDYEVRMKTNLPVFKTKDSN------VRRRYSDFEWLRNELERDS 86
V + H KK YT+Y++ K VF V +RYSDF+ L EL R
Sbjct: 6 TVTDTRRH---KKGYTEYKITSK----VFSRSVPEDVSEVVVWKRYSDFKKLHRELSRLH 58
Query: 87 KIV-----VPPLP-GKAWKRQMPFRGDDGIFEEEFIEDRRKGLETFINKIAGHPLAQNER 140
K + PP P GK + R F+ IE+RR+ + ++ + HP
Sbjct: 59 KQLYLSGSFPPFPKGKYFGR----------FDAAVIEERRQAILELLDFVGNHPALYQSS 108
Query: 141 CLHMFLQE 148
F +E
Sbjct: 109 AFQQFFEE 116
>gnl|CDD|132818 cd07285, PX_SNX9, The phosphoinositide binding Phox Homology domain
of Sorting Nexin 9. The PX domain is a phosphoinositide
(PI) binding module present in many proteins with
diverse functions. Sorting nexins (SNXs) make up the
largest group among PX domain containing proteins. They
are involved in regulating membrane traffic and protein
sorting in the endosomal system. The PX domain of SNXs
binds PIs and targets the protein to PI-enriched
membranes. SNXs differ from each other in PI-binding
specificity and affinity, and the presence of other
protein-protein interaction domains, which help
determine subcellular localization and specific function
in the endocytic pathway. SNX9, also known as SH3PX1, is
a cytosolic protein that interacts with proteins
associated with clathrin-coated pits such as
Cdc-42-associated tyrosine kinase 2 (ACK2). It contains
an N-terminal Src Homology 3 (SH3) domain, a PX domain,
and a C-terminal Bin/Amphiphysin/Rvs (BAR) domain, which
detects membrane curvature. The PX-BAR structural unit
helps determine specific membrane localization. Through
its SH3 domain, SNX9 binds class I polyproline sequences
found in dynamin 1/2 and the WASP/N-WASP actin
regulators. SNX9 is localized to plasma membrane
endocytic sites and acts primarily in clathrin-mediated
endocytosis. Its array of interacting partners suggests
that SNX9 functions at the interface between endocytosis
and actin cytoskeletal organization.
Length = 126
Score = 40.4 bits (94), Expect = 6e-05
Identities = 25/86 (29%), Positives = 38/86 (44%), Gaps = 11/86 (12%)
Query: 63 TKDSNVRRRYSDFEWLRNEL--ERDSKIVVPPLPGKAWKRQMPFRGDDGIFEEEFIEDRR 120
+ +V RY F+WL L + I +P LP K G FEEEFI+ R
Sbjct: 29 NTNRSVNHRYKHFDWLYERLLVKFGLAIPIPSLPDKQVT---------GRFEEEFIKMRM 79
Query: 121 KGLETFINKIAGHPLAQNERCLHMFL 146
+ L+ ++ ++ HP+ FL
Sbjct: 80 ERLQAWMTRMCRHPVISESEVFQQFL 105
>gnl|CDD|132780 cd06870, PX_CISK, The phosphoinositide binding Phox Homology Domain
of Cytokine-Independent Survival Kinase. The PX domain
is a phosphoinositide (PI) binding module present in
many proteins with diverse functions.
Cytokine-independent survival kinase (CISK), also called
Serum- and Glucocorticoid-induced Kinase 3 (SGK3), plays
a role in cell growth and survival. It is expressed in
most tissues and is most abundant in the embryo and
adult heart and spleen. It was originally discovered in
a screen for antiapoptotic genes. It phosphorylates and
inhibits the proapoptotic proteins, Bad and FKHRL1.
CISK/SGK3 also regulates many transporters, ion
channels, and receptors. It plays a critical role in
hair follicle morphogenesis and hair cycling. N-terminal
to a catalytic kinase domain, CISK contains a PX domain
which binds highly phosphorylated PIs, directs membrane
localization, and regulates the enzyme's activity.
Length = 109
Score = 38.9 bits (91), Expect = 1e-04
Identities = 31/104 (29%), Positives = 49/104 (47%), Gaps = 13/104 (12%)
Query: 44 KKRYTDYEVRMKTNLPVFKTKDSNVRRRYSDFEWLRNELERDSKIVVPPLPGKAWKRQMP 103
KKR+T Y+V + V RRY++F+ L L++ +PGK
Sbjct: 17 KKRFTVYKV-----VVSVGRSSWFVFRRYAEFDKLYESLKKQFPASNLKIPGKR------ 65
Query: 104 FRGDDGIFEEEFIEDRRKGLETFINKIAGHPLAQNERCLHMFLQ 147
G++ F+ +FI+ RR GL+ FI ++ P N + FLQ
Sbjct: 66 LFGNN--FDPDFIKQRRAGLDEFIQRLVSDPKLLNHPDVRAFLQ 107
>gnl|CDD|132802 cd06892, PX_SNX5_like, The phosphoinositide binding Phox Homology
domain of Sorting Nexins 5 and 6. The PX domain is a
phosphoinositide (PI) binding module present in many
proteins with diverse functions. Sorting nexins (SNXs)
make up the largest group among PX domain containing
proteins. They are involved in regulating membrane
traffic and protein sorting in the endosomal system. The
PX domain of SNXs binds PIs and targets the protein to
PI-enriched membranes. SNXs differ from each other in
PI-binding specificity and affinity, and the presence of
other protein-protein interaction domains, which help
determine subcellular localization and specific function
in the endocytic pathway. Members of this subfamily
include SNX5, SNX6, and similar proteins. They contain a
Bin/Amphiphysin/Rvs (BAR) domain, which detects membrane
curvature, C-terminal to the PX domain, similar to other
sorting nexins including SNX1-2. The PX-BAR structural
unit helps determine the specific membrane-targeting of
some SNXs. SNX5 and SNX6 may be components of the
retromer complex, a membrane coat multimeric complex
required for endosomal retrieval of lysosomal hydrolase
receptors to the Golgi, acting as a mammalian equivalent
of yeast Vsp17p.
Length = 141
Score = 37.4 bits (87), Expect = 7e-04
Identities = 31/122 (25%), Positives = 54/122 (44%), Gaps = 23/122 (18%)
Query: 50 YEVRMKTNLPVFKTKDSNVRRRYSDFEWLRNELERDSK---IVVPPLPGKA------WKR 100
+ V KT LP F+ + +V R++ +F WL + L + +++PP P K K
Sbjct: 19 FTVHTKTTLPTFQKPEFSVTRQHEEFVWLHDTLVENEDYAGLIIPPAPPKPDFDASREKL 78
Query: 101 QMPFRGDDGIFEEEFI--------EDRR------KGLETFINKIAGHPLAQNERCLHMFL 146
Q G+ + +EEF E E F+ ++A HP+ +N+ +FL
Sbjct: 79 QKLGEGEGSMTKEEFEKMKQELEAEYLAIFKKTVAMHEVFLRRLASHPVLRNDANFRVFL 138
Query: 147 QE 148
+
Sbjct: 139 EY 140
>gnl|CDD|132785 cd06875, PX_IRAS, The phosphoinositide binding Phox Homology domain
of the Imidazoline Receptor Antisera-Selected. The PX
domain is a phosphoinositide binding (PI) module present
in many proteins with diverse functions such as cell
signaling, vesicular trafficking, protein sorting, and
lipid modification, among others. Imidazoline Receptor
Antisera-Selected (IRAS), also called nischarin,
contains an N-terminal PX domain, leucine rich repeats,
and a predicted coiled coil domain. The PX domain of
IRAS binds to phosphatidylinositol-3-phosphate in
membranes. Together with the coiled coil domain, it is
essential for the localization of IRAS to endosomes.
IRAS has been shown to interact with integrin and
inhibit cell migration. Its interaction with alpha5
integrin causes a redistribution of the receptor from
the cell surface to endosomal structures, suggesting
that IRAS may function as a sorting nexin (SNX) which
regulates the endosomal trafficking of integrin. SNXs
make up the largest group among PX domain containing
proteins. They are involved in regulating membrane
traffic and protein sorting in the endosomal system.
SNXs differ from each other in PI-binding specificity
and affinity, and the presence of other protein-protein
interaction domains, which help determine subcellular
localization and specific function in the endocytic
pathway.
Length = 116
Score = 35.7 bits (83), Expect = 0.002
Identities = 19/63 (30%), Positives = 28/63 (44%), Gaps = 9/63 (14%)
Query: 68 VRRRYSDFEWLRNELERDSKIVVPPLPGKAWKRQMPFRGDDGIFEEEFIEDRRKGLETFI 127
V+ RYSDF L ++L + K+ LP K F+E RRK LE ++
Sbjct: 33 VKHRYSDFAELHDKLVAEHKVDKDLLPPKKLIGNK---------SPSFVEKRRKELEIYL 83
Query: 128 NKI 130
+
Sbjct: 84 QTL 86
>gnl|CDD|132829 cd07296, PX_PLD1, The phosphoinositide binding Phox Homology domain
of Phospholipase D1. The PX domain is a
phosphoinositide binding module present in many proteins
with diverse functions such as cell signaling, vesicular
trafficking, protein sorting, and lipid modification,
among others. Phospholipase D (PLD) catalyzes the
hydrolysis of the phosphodiester bond of
phosphatidylcholine to generate membrane-bound
phosphatidic acid and choline. PLDs are implicated in
many cellular functions like signaling, cytoskeletal
reorganization, vesicular transport, stress responses,
and the control of differentiation, proliferation, and
survival. PLD1 contains PX and Pleckstrin Homology (PH)
domains in addition to the catalytic domain. It acts as
an effector of Rheb in the signaling of the mammalian
target of rapamycin (mTOR), a serine/threonine protein
kinase that transduces nutrients and other stimuli to
regulate many cellular processes. PLD1 also regulates
the secretion of the procoagulant von Willebrand factor
(VWF) in endothelial cells. The PX domain is involved in
targeting of proteins to PI-enriched membranes, and may
also be involved in protein-protein interaction. The PX
domain of PLD1 specifically binds to
phosphatidylinositol-3,4,5-trisphosphate [PI(3,4,5)P3],
which enables PLD1 to mediate signals via the ERK1/2
pathway.
Length = 135
Score = 36.1 bits (83), Expect = 0.003
Identities = 24/84 (28%), Positives = 39/84 (46%), Gaps = 13/84 (15%)
Query: 68 VRRRYSDFEWLRNELERDSKIVVPPLPGKAW-----------KRQMPF--RGDDGIFEEE 114
V+R++ F+ L EL R + P+P ++ R MP RG + EE
Sbjct: 41 VKRKFKHFQELHRELLRYKAFIRIPIPTRSHTVRRQTIKRGEPRHMPSLPRGAEEEAREE 100
Query: 115 FIEDRRKGLETFINKIAGHPLAQN 138
RRK LE +++K+ P+ +N
Sbjct: 101 QFSSRRKQLEDYLSKLLKMPMYRN 124
>gnl|CDD|132796 cd06886, PX_SNX27, The phosphoinositide binding Phox Homology
domain of Sorting Nexin 27. The PX domain is a
phosphoinositide (PI) binding module present in many
proteins with diverse functions. Sorting nexins (SNXs)
make up the largest group among PX domain containing
proteins. They are involved in regulating membrane
traffic and protein sorting in the endosomal system. The
PX domain of SNXs binds PIs and targets the protein to
PI-enriched membranes. SNXs differ from each other in
PI-binding specificity and affinity, and the presence of
other protein-protein interaction domains, which help
determine subcellular localization and specific function
in the endocytic pathway. SNX27 contains an N-terminal
PDZ domain followed by a PX domain and a Ras-Associated
(RA) domain. It binds G protein-gated potassium (Kir3)
channels, which play a role in neuronal excitability
control, through its PDZ domain. SNX27 downregulates
Kir3 channels by promoting their movement in the
endosome, reducing surface expression and increasing
degradation. SNX27 also associates with
5-hydroxytryptamine type 4 receptor (5-HT4R), cytohesin
associated scaffolding protein (CASP), and
diacylglycerol kinase zeta, and may play a role in their
intracellular trafficking and endocytic recycling. The
SNX27 PX domain preferentially binds to
phosphatidylinositol-3-phosphate (PI3P) and is important
for targeting to the early endosome.
Length = 106
Score = 35.5 bits (82), Expect = 0.003
Identities = 21/62 (33%), Positives = 32/62 (51%), Gaps = 11/62 (17%)
Query: 70 RRYSDFEWLRNELERD-SKIVVPPLPGKAWKRQMPFRGDDGIFEEEFIEDRRKGLETFIN 128
RRY +F L L+++ P LPGK W PF E+ ++ RR+GLE ++
Sbjct: 36 RRYREFANLHQNLKKEFPDFQFPKLPGK-W----PFS-----LSEQQLDARRRGLEQYLE 85
Query: 129 KI 130
K+
Sbjct: 86 KV 87
>gnl|CDD|132812 cd07279, PX_SNX20_21_like, The phosphoinositide binding Phox
Homology domain of Sorting Nexins 20 and 21. The PX
domain is a phosphoinositide (PI) binding module present
in many proteins with diverse functions. Sorting nexins
(SNXs) make up the largest group among PX domain
containing proteins. They are involved in regulating
membrane traffic and protein sorting in the endosomal
system. The PX domain of SNXs binds PIs and targets the
protein to PI-enriched membranes. SNXs differ from each
other in PI-binding specificity and affinity, and the
presence of other protein-protein interaction domains,
which help determine subcellular localization and
specific function in the endocytic pathway. This
subfamily consists of SNX20, SNX21, and similar
proteins. SNX20 interacts with P-Selectin glycoprotein
ligand-1 (PSGL-1), a surface-expressed mucin that acts
as a ligand for the selectin family of adhesion
proteins. It may function in the sorting and cycling of
PSGL-1 into endosomes. SNX21, also called SNX-L, is
distinctly and highly-expressed in fetal liver and may
be involved in protein sorting and degradation during
embryonic liver development.
Length = 112
Score = 34.2 bits (79), Expect = 0.007
Identities = 31/120 (25%), Positives = 51/120 (42%), Gaps = 8/120 (6%)
Query: 30 LEIDVVNPITHGVAKKRYTDYEVRMKTNLPVFKTKDSNVRRRYSDFEWLRNELERDSKIV 89
L+ ++V+ T +K+Y Y++ + T+ + + RRYSDF L L +
Sbjct: 1 LKFEIVSARTVKEGEKKYVVYQLAVVQT-GDPDTQPAFIERRYSDFLKLYKALRKQ---- 55
Query: 90 VPPLPGKAWKRQMPFRGDDGIFEEEFIEDRRKGLETFINKIAGHPLAQNERCLHMFLQEP 149
P K P + G F E I +R + E F+ I P ++ + FLQ P
Sbjct: 56 ---HPQLMAKVSFPRKVLMGNFSSELIAERSRAFEQFLGHILSIPNLRDSKAFLDFLQGP 112
>gnl|CDD|132783 cd06873, PX_SNX13, The phosphoinositide binding Phox Homology
domain of Sorting Nexin 13. The PX domain is a
phosphoinositide (PI) binding module present in many
proteins with diverse functions. Sorting nexins (SNXs)
make up the largest group among PX domain containing
proteins. They are involved in regulating membrane
traffic and protein sorting in the endosomal system. The
PX domain of SNXs binds PIs and targets the protein to
PI-enriched membranes. SNXs differ from each other in
PI-binding specificity and affinity, and the presence of
other protein-protein interaction domains, which help
determine subcellular localization and specific function
in the endocytic pathway. SNX13, also called RGS-PX1,
contains an N-terminal PXA domain, a regulator of G
protein signaling (RGS) domain, a PX domain, and a
C-terminal domain that is conserved in some SNXs. It
specifically binds to the stimulatory subunit of the
heterotrimeric G protein G(alpha)s, serving as its
GTPase activating protein, through the RGS domain. It
preferentially binds phosphatidylinositol-3-phosphate
(PI3P) through the PX domain and is localized in early
endosomes. SNX13 is involved in endosomal sorting of
EGFR into multivesicular bodies (MVB) for delivery to
the lysosome.
Length = 120
Score = 33.0 bits (76), Expect = 0.021
Identities = 23/87 (26%), Positives = 34/87 (39%), Gaps = 18/87 (20%)
Query: 67 NVRRRYSDFEWLRNEL-ERDSKIVVPPLPGKAWKRQMPFRGDDGIFEEEFIEDRRKGLET 125
+V RRYSDF L L E+ + PGK + + F+E RRK L
Sbjct: 42 HVYRRYSDFHDLHMRLKEKFPNLSKLSFPGKKTFNNL---------DRAFLEKRRKMLNQ 92
Query: 126 FINKI------AGHPLAQNERCLHMFL 146
++ + +P Q + FL
Sbjct: 93 YLQSLLNPEVLDANPGLQE--IVLDFL 117
>gnl|CDD|132821 cd07288, PX_SNX15, The phosphoinositide binding Phox Homology
domain of Sorting Nexin 15. The PX domain is a
phosphoinositide (PI) binding module present in many
proteins with diverse functions. Sorting nexins (SNXs)
make up the largest group among PX domain containing
proteins. They are involved in regulating membrane
traffic and protein sorting in the endosomal system. The
PX domain of SNXs binds PIs and targets the protein to
PI-enriched membranes. SNXs differ from each other in
PI-binding specificity and affinity, and the presence of
other protein-protein interaction domains, which help
determine subcellular localization and specific function
in the endocytic pathway. SNX15 contains an N-terminal
PX domain and a C-terminal Microtubule Interacting and
Trafficking (MIT) domain. It plays a role in protein
trafficking processes in the endocytic pathway and the
trans-Golgi network. The PX domain of SNX15 interacts
with the PDGF receptor and is responsible for the
membrane association of the protein.
Length = 118
Score = 32.6 bits (74), Expect = 0.029
Identities = 36/126 (28%), Positives = 51/126 (40%), Gaps = 26/126 (20%)
Query: 34 VVNPITHGVAKKRYTDYEVRMKTNLPVFKTKDSNVR-----RRYSDFEWLRNELERDSKI 88
V +P TH K YT+Y+V T + K + +V+ +RYSD + L EL +
Sbjct: 7 VTDPRTH---PKGYTEYKV---TAQFISKKQPEDVKEVVVWKRYSDLKKLHGELAYTHRN 60
Query: 89 VV------PPLPGKAWKRQMPFRGDDGIFEEEFIEDRRKGLETFINKIAGHPLAQNERCL 142
+ PP P R F G FE IE+RR E + P N L
Sbjct: 61 LFRRQEEFPPFP-----RAQVF----GRFEAAVIEERRNAAEAMLLFTVNIPALYNSPQL 111
Query: 143 HMFLQE 148
F ++
Sbjct: 112 KEFFRD 117
>gnl|CDD|132790 cd06880, PX_SNX22, The phosphoinositide binding Phox Homology
domain of Sorting Nexin 22. The PX domain is a
phosphoinositide (PI) binding module present in many
proteins with diverse functions. Sorting nexins (SNXs)
make up the largest group among PX domain containing
proteins. They are involved in regulating membrane
traffic and protein sorting in the endosomal system. The
PX domain of SNXs binds PIs and targets the protein to
PI-enriched membranes. SNXs differ from each other in
PI-binding specificity and affinity, and the presence of
other protein-protein interaction domains, which help
determine subcellular localization and specific function
in the endocytic pathway. SNX22 may be involved in
recruiting other proteins to the membrane via
protein-protein and protein-ligand interaction. The
biological function of SNX22 is not yet known.
Length = 110
Score = 31.5 bits (72), Expect = 0.071
Identities = 22/91 (24%), Positives = 39/91 (42%), Gaps = 17/91 (18%)
Query: 44 KKRYTDYEVRMKTNLPVFKTKDSNVRRRYSDFEWLRNELERDSKIVVPPLPGKAWKRQMP 103
+K YT + + + N + V +RYS+F L +L++ I P P K + P
Sbjct: 16 EKPYTVFTIEVLVN-----GRRHTVEKRYSEFHALHKKLKKS--IKTPDFPPKRVRNWNP 68
Query: 104 FRGDDGIFEEEFIEDRRKGLETFINKIAGHP 134
+ +E RR+GLE ++ +
Sbjct: 69 ----------KVLEQRRQGLEAYLQGLLKIN 89
>gnl|CDD|225918 COG3383, COG3383, Uncharacterized anaerobic dehydrogenase [General
function prediction only].
Length = 978
Score = 31.6 bits (72), Expect = 0.19
Identities = 16/65 (24%), Positives = 31/65 (47%), Gaps = 3/65 (4%)
Query: 79 RNELERDSKIVVPPLPGK--AWKRQMP-FRGDDGIFEEEFIEDRRKGLETFINKIAGHPL 135
++E+ + + + P PG AW + + D+G+ +E FI +R E + +A L
Sbjct: 460 KHEMAERADLFLHPKPGTDLAWLTAVAKYIIDEGLHDEAFIRERVDWFEDYAKSLAPFTL 519
Query: 136 AQNER 140
E+
Sbjct: 520 EYAEK 524
>gnl|CDD|132833 cd07300, PX_SNX20, The phosphoinositide binding Phox Homology
domain of Sorting Nexin 20. The PX domain is a
phosphoinositide (PI) binding module present in many
proteins with diverse functions. Sorting nexins (SNXs)
make up the largest group among PX domain containing
proteins. They are involved in regulating membrane
traffic and protein sorting in the endosomal system. The
PX domain of SNXs binds PIs and targets the protein to
PI-enriched membranes. SNXs differ from each other in
PI-binding specificity and affinity, and the presence of
other protein-protein interaction domains, which help
determine subcellular localization and specific function
in the endocytic pathway. Some SNXs are localized in
early endosome structures such as clathrin-coated pits,
while others are located in late structures of the
endocytic pathway. SNX20 interacts with P-Selectin
glycoprotein ligand-1 (PSGL-1), a surface-expressed
mucin that acts as a ligand for the selectin family of
adhesion proteins. The PX domain of SNX20 binds PIs and
targets the SNX20/PSGL-1 complex to endosomes. SNX20 may
function in the sorting and cycling of PSGL-1 into
endosomes.
Length = 114
Score = 29.8 bits (67), Expect = 0.28
Identities = 23/91 (25%), Positives = 32/91 (35%), Gaps = 11/91 (12%)
Query: 61 FKTKDSNVRRRYSDFEWLRNELERD--SKIVVPPLPGKAWKRQMPFRGDDGIFEEEFIED 118
F + RRYSDF L EL D ++ P K F EE I +
Sbjct: 31 FDCNKVVIERRYSDFLKLHQELLSDFSEELEDVVFPKKKLTGN---------FSEEIIAE 81
Query: 119 RRKGLETFINKIAGHPLAQNERCLHMFLQEP 149
RR L ++ + + + FL P
Sbjct: 82 RRVALRDYLTLLYSLRFVRRSQAFQDFLTHP 112
>gnl|CDD|132820 cd07287, PX_RPK118_like, The phosphoinositide binding Phox Homology
domain of RPK118-like proteins. The PX domain is a
phosphoinositide (PI) binding module present in many
proteins with diverse functions such as cell signaling,
vesicular trafficking, protein sorting, and lipid
modification, among others. Members of this subfamily
bear similarity to human RPK118, which contains an
N-terminal PX domain, a Microtubule Interacting and
Trafficking (MIT) domain, and a kinase domain. RPK118
binds sphingosine kinase, a key enzyme in the synthesis
of sphingosine 1-phosphate (SPP), a lipid messenger
involved in many cellular events. RPK118 may be involved
in transmitting SPP-mediated signaling. It also binds
the antioxidant peroxiredoxin-3 (PRDX3) and may be
involved in the transport of PRDX3 from the cytoplasm to
its site of function in the mitochondria. Members of
this subfamily also show similarity to sorting nexin 15
(SNX15), which contains PX and MIT domains but does not
contain a kinase domain. SNXs make up the largest group
among PX domain containing proteins. They are involved
in regulating membrane traffic and protein sorting in
the endosomal system. The PX domain of SNXs binds PIs
and targets the protein to PI-enriched membranes. SNX15
plays a role in protein trafficking processes in the
endocytic pathway and the trans-Golgi network. The PX
domain of SNX15 interacts with the PDGF receptor and is
responsible for the membrane association of the protein.
Length = 118
Score = 29.2 bits (65), Expect = 0.54
Identities = 34/123 (27%), Positives = 51/123 (41%), Gaps = 22/123 (17%)
Query: 34 VVNPITHGVAKKRYTDYEV--RMKTNLPVFKTKDSNVRRRYSDFEWLRNELE-------R 84
V +P H K YT Y+V R+ + ++ V +RYSDF+ L +L R
Sbjct: 7 VTDPRRH---PKGYTVYKVTARIVSRKNPEDVQEIVVWKRYSDFKKLHKDLWQIHKNLCR 63
Query: 85 DSKIVVPPLPGKAWKRQMPFRGDDGIFEEEFIEDRRKGLETFINKIAGHPLAQNERCLHM 144
S++ P K + R F+E IE+RR+ E + A P N L
Sbjct: 64 QSELFPPFAKAKVFGR----------FDESVIEERRQCAEDLLQFSANIPALYNSSQLED 113
Query: 145 FLQ 147
F +
Sbjct: 114 FFK 116
>gnl|CDD|132786 cd06876, PX_MDM1p, The phosphoinositide binding Phox Homology
domain of yeast MDM1p. The PX domain is a
phosphoinositide binding (PI) module present in many
proteins with diverse functions such as cell signaling,
vesicular trafficking, protein sorting, and lipid
modification, among others. Yeast MDM1p is a
filament-like protein localized in punctate structures
distributed throughout the cytoplasm. It plays an
important role in nuclear and mitochondrial transmission
to daughter buds. Members of this subfamily show similar
domain architectures as some sorting nexins (SNXs). Some
members are similar to SNX19 in that they contain an
N-terminal PXA domain, a central PX domain, and a
C-terminal domain that is conserved in some SNXs. Others
are similar to SNX13 and SNX14, which also harbor these
three domains as well as a regulator of G protein
signaling (RGS) domain in between the PXA and PX
domains. SNXs make up the largest group among PX domain
containing proteins. They are involved in regulating
membrane traffic and protein sorting in the endosomal
system. The PX domain of SNXs binds PIs and targets the
protein to PI-enriched membranes. SNXs differ from each
other in PI-binding specificity and affinity, and the
presence of other protein-protein interaction domains,
which help determine subcellular localization and
specific function in the endocytic pathway.
Length = 133
Score = 28.4 bits (64), Expect = 0.97
Identities = 21/80 (26%), Positives = 35/80 (43%), Gaps = 8/80 (10%)
Query: 68 VRRRYSDFEWLRNEL-ERDSKIVVPPLPGKAWKRQMPFRGDDGIFEEEFIEDRRKGLETF 126
V RRYS+F L L +R ++ P K R++ + +E+RRK LE +
Sbjct: 59 VARRYSEFLELHKYLKKRYPGVLKLDFPQK---RKISLKYSKT----LLVEERRKALEKY 111
Query: 127 INKIAGHPLAQNERCLHMFL 146
+ ++ P + FL
Sbjct: 112 LQELLKIPEVCEDEEFRKFL 131
>gnl|CDD|132779 cd06869, PX_UP2_fungi, The phosphoinositide binding Phox Homology
domain of uncharacterized fungal proteins. The PX
domain is a phosphoinositide (PI) binding module
involved in targeting proteins to PI-enriched
membranes. Members in this subfamily are
uncharacterized fungal proteins containing a PX domain.
PX domain harboring proteins have been implicated in
highly diverse functions such as cell signaling,
vesicular trafficking, protein sorting, lipid
modification, cell polarity and division, activation of
T and B cells, and cell survival. In addition to
protein-lipid interaction, the PX domain may also be
involved in protein-protein interaction.
Length = 119
Score = 28.0 bits (63), Expect = 1.2
Identities = 16/60 (26%), Positives = 31/60 (51%), Gaps = 3/60 (5%)
Query: 38 ITHGVAKKRYTDYEVRMKTNLPVFKTKDSNVRRRYSDFEWLRNELERD-SKIVVPPLPGK 96
K + ++ +R++ ++T V RRYSDF+ L ++L+++ +P LP K
Sbjct: 24 AYFVNRSKHHYEFIIRVRREGEEYRT--IYVARRYSDFKKLHHDLKKEFPGKKLPKLPHK 81
>gnl|CDD|235897 PRK06959, PRK06959, putative threonine-phosphate decarboxylase;
Provisional.
Length = 339
Score = 28.9 bits (65), Expect = 1.3
Identities = 10/24 (41%), Positives = 13/24 (54%), Gaps = 3/24 (12%)
Query: 90 VPPLPGKAWKRQMPFRGDDGIFEE 113
VPP+P AW+R +P DD
Sbjct: 40 VPPVPADAWRR-LP--EDDDGLAA 60
>gnl|CDD|132810 cd07277, PX_RUN, The phosphoinositide binding Phox Homology domain
of uncharacterized proteins containing PX and RUN
domains. The PX domain is a phosphoinositide (PI)
binding module involved in targeting proteins to
PI-enriched membranes. Members in this subfamily are
uncharacterized proteins containing an N-terminal RUN
domain and a C-terminal PX domain. PX domain harboring
proteins have been implicated in highly diverse
functions such as cell signaling, vesicular trafficking,
protein sorting, lipid modification, cell polarity and
division, activation of T and B cells, and cell
survival. In addition to protein-lipid interaction, the
PX domain may also be involved in protein-protein
interaction. The RUN domain is found in GTPases in the
Rap and Rab families and may play a role in Ras-like
signaling pathways.
Length = 118
Score = 27.3 bits (61), Expect = 2.0
Identities = 20/68 (29%), Positives = 36/68 (52%), Gaps = 16/68 (23%)
Query: 67 NVRRRYSDFEWLRNELERDSKIV----VPPLPGKAWKRQMPFRGDDGIFEEEFIEDRRKG 122
NV RRYS+F L +L++ +V PP K+ + G + +F+E+RRK
Sbjct: 33 NVYRRYSEFYELHKKLKKKFPVVRSFDFPP------KKAI------GNKDAKFVEERRKR 80
Query: 123 LETFINKI 130
L+ ++ ++
Sbjct: 81 LQVYLRRV 88
>gnl|CDD|184086 PRK13493, PRK13493, chemoreceptor glutamine deamidase CheD;
Provisional.
Length = 213
Score = 28.0 bits (62), Expect = 2.2
Identities = 8/28 (28%), Positives = 16/28 (57%)
Query: 87 KIVVPPLPGKAWKRQMPFRGDDGIFEEE 114
K++ P G+AW +++ F I ++E
Sbjct: 167 KLLFDPQTGQAWVKRIGFSSAHAIKQDE 194
>gnl|CDD|216057 pfam00680, RdRP_1, RNA dependent RNA polymerase.
Length = 479
Score = 27.6 bits (62), Expect = 3.2
Identities = 12/58 (20%), Positives = 22/58 (37%)
Query: 62 KTKDSNVRRRYSDFEWLRNELERDSKIVVPPLPGKAWKRQMPFRGDDGIFEEEFIEDR 119
KT ++ R + +L+ +RD V P L ++ Q+ + E D
Sbjct: 373 KTSETIPIRPLEELTFLKRTFKRDEGGVRPKLDKESIFSQLEWTRSPNTEHHEARGDN 430
>gnl|CDD|226342 COG3821, COG3821, Predicted membrane protein [Function unknown].
Length = 234
Score = 27.4 bits (61), Expect = 3.7
Identities = 10/27 (37%), Positives = 13/27 (48%), Gaps = 4/27 (14%)
Query: 63 TKDSNVRRRYSDFEWLRNELERDSKIV 89
N RR W+RN L RD +I+
Sbjct: 35 NTAMNEIRR----RWMRNMLVRDIRII 57
>gnl|CDD|132795 cd06885, PX_SNX17_31, The phosphoinositide binding Phox Homology
domain of Sorting Nexins 17 and 31. The PX domain is a
phosphoinositide (PI) binding module present in many
proteins with diverse functions. Members of this
subfamily include sorting nexin 17 (SNX17), SNX31, and
similar proteins. They contain an N-terminal PX domain
followed by a truncated FERM (4.1, ezrin, radixin, and
moesin) domain and a unique C-terminal region. SNXs make
up the largest group among PX domain containing
proteins. They are involved in regulating membrane
traffic and protein sorting in the endosomal system. The
PX domain of SNXs binds PIs and targets the protein to
PI-enriched membranes. SNXs differ from each other in
PI-binding specificity and affinity, and the presence of
other protein-protein interaction domains, which help
determine subcellular localization and specific function
in the endocytic pathway. SNX17 is known to regulate the
trafficking and processing of a number of proteins. It
binds some members of the low-density lipoprotein
receptor (LDLR) family such as LDLR, VLDLR, ApoER2, and
others, regulating their endocytosis. It also binds
P-selectin and may regulate its lysosomal degradation.
SNX17 is highly expressed in neurons. It binds amyloid
precursor protein (APP) and may be involved in its
intracellular trafficking and processing to amyloid beta
peptide, which plays a central role in the pathogenesis
of Alzheimer's disease. The biological function of SNX31
is unknown.
Length = 104
Score = 26.5 bits (59), Expect = 3.8
Identities = 19/78 (24%), Positives = 30/78 (38%), Gaps = 11/78 (14%)
Query: 71 RYSDFEWLRNELERD-SKIVVPPLPGKAWKRQMPFRGDDGIFEEEFIEDRRKGLETFINK 129
RYS L +L+++ +PP P K P +E+RR LE ++
Sbjct: 34 RYSQLHGLNEQLKKEFGNRKLPPFPPKKLLPLTP----------AQLEERRLQLEKYLQA 83
Query: 130 IAGHPLAQNERCLHMFLQ 147
+ P N + FL
Sbjct: 84 VVQDPRIANSDIFNSFLL 101
>gnl|CDD|132800 cd06890, PX_Bem1p, The phosphoinositide binding Phox Homology
domain of Bem1p. The PX domain is a phosphoinositide
(PI) binding module present in many proteins with
diverse functions such as cell signaling, vesicular
trafficking, protein sorting, and lipid modification,
among others. Members of this subfamily bear similarity
to Saccharomyces cerevisiae Bem1p, containing two Src
Homology 3 (SH3) domains at the N-terminus, a central PX
domain, and a C-terminal PB1 domain. Bem1p is a
scaffolding protein that is critical for proper Cdc42p
activation during bud formation in yeast. During budding
and mating, Bem1p migrates to the plasma membrane where
it can serve as an adaptor for Cdc42p and some other
proteins. Bem1p also functions as an effector of the G1
cyclin Cln3p and the cyclin-dependent kinase Cdc28p in
promoting vacuolar fusion. The PX domain is involved in
targeting of proteins to PI-enriched membranes, and may
also be involved in protein-protein interaction. The PX
domain of Bem1p specifically binds
phosphatidylinositol-4-phosphate (PI4P).
Length = 112
Score = 26.5 bits (59), Expect = 4.3
Identities = 15/75 (20%), Positives = 23/75 (30%), Gaps = 19/75 (25%)
Query: 64 KDSNVRRRYSDFEWL---------RNELERDSKIVVPPLPGKAWKRQMPFRGDDGIFEEE 114
K + R Y DF L SK ++P LPG + +
Sbjct: 27 KTRYLCRYYQDFYKLHIALLDLFPAEAGRNSSKRILPYLPGPV----------TDVVNDS 76
Query: 115 FIEDRRKGLETFINK 129
R L ++N+
Sbjct: 77 ISLKRLNDLNEYLNE 91
>gnl|CDD|132784 cd06874, PX_KIF16B_SNX23, The phosphoinositide binding Phox
Homology domain of KIF16B kinesin or Sorting Nexin 23.
The PX domain is a phosphoinositide (PI) binding module
present in many proteins with diverse functions such as
cell signaling, vesicular trafficking, protein sorting,
and lipid modification, among others. KIF16B, also
called sorting nexin 23 (SNX23), is a family-3 kinesin
which harbors an N-terminal kinesin motor domain
containing ATP and microtubule binding sites, a ForkHead
Associated (FHA) domain, and a C-terminal PX domain. The
PX domain of KIF16B binds to
phosphatidylinositol-3-phosphate (PI3P) in early
endosomes and plays a role in the transport of early
endosomes to the plus end of microtubules. By regulating
early endosome plus end motility, KIF16B modulates the
balance between recycling and degradation of receptors.
SNXs make up the largest group among PX domain
containing proteins. They are involved in regulating
membrane traffic and protein sorting in the endosomal
system. The PX domain of SNXs binds PIs and targets the
protein to PI-enriched membranes. SNXs differ from each
other in PI-binding specificity and affinity, and the
presence of other protein-protein interaction domains,
which help determine subcellular localization and
specific function in the endocytic pathway.
Length = 127
Score = 26.6 bits (59), Expect = 4.4
Identities = 21/89 (23%), Positives = 34/89 (38%), Gaps = 15/89 (16%)
Query: 41 GVAKKRYTDYEVRMKTNLPVFKTKDSNVRRRYSDFEWLRNELERDSKIVVP-PLPGKAWK 99
G K + ++EV++ + V RRYS F L ++ V P K
Sbjct: 12 GQGKDEHFEFEVKITVLDETW-----TVFRRYSRFRELHKTMKLKYPEVAALEFPPKKL- 65
Query: 100 RQMPFRGDDGIFEEEFIEDRRKGLETFIN 128
F E ++RR+ LET++
Sbjct: 66 ----FGNKS----ERVAKERRRQLETYLR 86
>gnl|CDD|223071 PHA03392, egt, ecdysteroid UDP-glucosyltransferase; Provisional.
Length = 507
Score = 27.2 bits (61), Expect = 4.5
Identities = 12/29 (41%), Positives = 17/29 (58%), Gaps = 2/29 (6%)
Query: 47 YTDYEVRMKTNLPVFKTKDSNVRRRYSDF 75
YT++ +R K KTK +NV YSD+
Sbjct: 460 YTEHVIRNKHGNTSLKTKAANV--SYSDY 486
>gnl|CDD|132834 cd07301, PX_SNX21, The phosphoinositide binding Phox Homology
domain of Sorting Nexin 21. The PX domain is a
phosphoinositide (PI) binding module present in many
proteins with diverse functions. Sorting nexins (SNXs)
make up the largest group among PX domain containing
proteins. They are involved in regulating membrane
traffic and protein sorting in the endosomal system. The
PX domain of SNXs binds PIs and targets the protein to
PI-enriched membranes. SNXs differ from each other in
PI-binding specificity and affinity, and the presence of
other protein-protein interaction domains, which help
determine subcellular localization and specific function
in the endocytic pathway. Some SNXs are localized in
early endosome structures such as clathrin-coated pits,
while others are located in late structures of the
endocytic pathway. SNX21, also called SNX-L, is
distinctly and highly-expressed in fetal liver and may
be involved in protein sorting and degradation during
embryonic liver development.
Length = 112
Score = 25.5 bits (56), Expect = 7.6
Identities = 19/69 (27%), Positives = 27/69 (39%), Gaps = 11/69 (15%)
Query: 68 VRRRYSDFEWLRNELER--DSKIVVPPLPGKAWKRQMPFRGDDGIFEEEFIEDRRKGLET 125
+ RRYSDFE L L R ++ P K ++ F E I R + E
Sbjct: 38 ISRRYSDFERLHRRLRRLFGGEMAGVSFPRKRLRKN---------FTAETIAKRSRAFEQ 88
Query: 126 FINKIAGHP 134
F+ + P
Sbjct: 89 FLCHLHSLP 97
>gnl|CDD|132789 cd06879, PX_UP1_plant, The phosphoinositide binding Phox Homology
domain of uncharacterized plant proteins. The PX domain
is a phosphoinositide (PI) binding module involved in
targeting proteins to PI-enriched membranes. Members in
this subfamily are uncharacterized fungal proteins
containing a PX domain. PX domain harboring proteins
have been implicated in highly diverse functions such as
cell signaling, vesicular trafficking, protein sorting,
lipid modification, cell polarity and division,
activation of T and B cells, and cell survival. In
addition to protein-lipid interaction, the PX domain may
also be involved in protein-protein interaction.
Length = 138
Score = 25.8 bits (56), Expect = 7.9
Identities = 22/82 (26%), Positives = 35/82 (42%), Gaps = 10/82 (12%)
Query: 50 YEVRMKTNLPVFKTKDSNVRRRYSDFEWLRNELERD-SKIVVPPLPGKAWKRQMPFRGDD 108
Y V++ P T V RR++DF L +L++ K +P P K R
Sbjct: 47 YRVQVGVQSPEGITTMRGVLRRFNDFLKLHTDLKKLFPKKKLPAAPPKGLLRMK------ 100
Query: 109 GIFEEEFIEDRRKGLETFINKI 130
+E+RR LE ++ K+
Sbjct: 101 ---NRALLEERRHSLEEWMGKL 119
>gnl|CDD|234898 PRK01100, PRK01100, putative accessory gene regulator protein;
Provisional.
Length = 210
Score = 26.3 bits (58), Expect = 8.4
Identities = 8/25 (32%), Positives = 16/25 (64%)
Query: 27 ANFLEIDVVNPITHGVAKKRYTDYE 51
+ ++ +NPIT+ + +RY +YE
Sbjct: 179 GSLFQVISINPITYKLLNRRYKNYE 203
>gnl|CDD|131283 TIGR02228, sigpep_I_arch, signal peptidase I, archaeal type. This
model represents signal peptidase I from most archaea, a
subunit of the eukaryotic endoplasmic reticulum signal
peptidase I complex, and an apparent signal peptidase I
from a small number of bacteria. It is related to but
does not overlap in hits with TIGR02227, the bacterial
and mitochondrial signal peptidase I.
Length = 158
Score = 25.9 bits (57), Expect = 8.8
Identities = 11/53 (20%), Positives = 17/53 (32%), Gaps = 6/53 (11%)
Query: 29 FLEIDVVNPITHGVAKKRYTDYEVRMKT-----NLP-VFKTKDSNVRRRYSDF 75
+ P+TH V + + E+ T P NV +Y F
Sbjct: 69 YKSPGFNTPVTHRVIEINNSGGELGFITKGDNNPAPDGEPVPSENVIGKYLGF 121
Database: CDD.v3.10
Posted date: Mar 20, 2013 7:55 AM
Number of letters in database: 10,937,602
Number of sequences in database: 44,354
Lambda K H
0.319 0.137 0.409
Gapped
Lambda K H
0.267 0.0713 0.140
Matrix: BLOSUM62
Gap Penalties: Existence: 11, Extension: 1
Number of Sequences: 44354
Number of Hits to DB: 8,705,102
Number of extensions: 809718
Number of successful extensions: 774
Number of sequences better than 10.0: 1
Number of HSP's gapped: 712
Number of HSP's successfully gapped: 69
Length of query: 163
Length of database: 10,937,602
Length adjustment: 89
Effective length of query: 74
Effective length of database: 6,990,096
Effective search space: 517267104
Effective search space used: 517267104
Neighboring words threshold: 11
Window for multiple hits: 40
X1: 16 ( 7.4 bits)
X2: 38 (14.6 bits)
X3: 64 (24.7 bits)
S1: 41 (21.7 bits)
S2: 55 (25.0 bits)