RPS-BLAST 2.2.26 [Sep-21-2011]
Database: CDD.v3.10
44,354 sequences; 10,937,602 total letters
Searching..................................................done
Query= psy6165
(482 letters)
>gnl|CDD|233856 TIGR02411, leuko_A4_hydro, leukotriene A-4
hydrolase/aminopeptidase. Members of this family
represent a distinctive subset within the zinc
metallopeptidase family M1 (pfam01433). The majority of
the members of pfam01433 are aminopeptidases, but the
sequences in this family for which the function is known
are leukotriene A-4 hydrolase. A dual epoxide hydrolase
and aminopeptidase activity at the same active site is
indicated. The physiological substrate for
aminopeptidase activity is not known.
Length = 602
Score = 164 bits (417), Expect = 1e-44
Identities = 79/223 (35%), Positives = 111/223 (49%), Gaps = 44/223 (19%)
Query: 157 LKTLGEDNPLTKLIVDLKHTHPDDAFSTCPYEKGHTFLFYLEQLLGGPKDFEPWLKKYLA 216
+KTLGE TKL+VDLK PDDAFS+ PYEKG FLFYLEQLLGGP +F+P+L+ Y
Sbjct: 343 VKTLGETPEFTKLVVDLKDNDPDDAFSSVPYEKGFNFLFYLEQLLGGPAEFDPFLRHYFK 402
Query: 217 EFALQSIDTDNFKAHLTSHFAHKPEI---NQIEWDLWLNTTGMPPHIPKYDTSLQDVCNN 273
+FA +S+DT FK L +F K ++ + ++W+ WL + GMPP P +DT+L D C
Sbjct: 403 KFAYKSLDTYQFKDALYEYFKDKKKVDKLDAVDWETWLYSPGMPPVKPNFDTTLADECYA 462
Query: 274 LASRWISWNHTKETPDVTFNFTFQYFKACGYDTSLQDVCNDLANRWISWNHTKETPFSKQ 333
LA RW+ +DL++ F+ +
Sbjct: 463 LADRWVD----------------------------AAKADDLSS------------FNAK 482
Query: 334 DLAAFTPGHKIEFLAKSSSYIAI-PFIYGYDTSLQDVCNNLAS 375
D+ F+ + FL + G+ L D+ N AS
Sbjct: 483 DIKDFSSHQLVLFLETLTERGGDWALPEGHIKRLGDIYNFAAS 525
Score = 47.8 bits (114), Expect = 9e-06
Identities = 23/86 (26%), Positives = 36/86 (41%), Gaps = 11/86 (12%)
Query: 10 DPNSFSRPELAVIEHIDLFLDVNFESKTLSGEAHYVIRRKDPNVTNVEKNTK-------- 61
DP+S S + H DL L V+F + LSG + ++ N+ + +T
Sbjct: 1 DPSSLSNYKDFRTSHTDLNLSVDFTKRKLSGSVTFTLKSLTDNLNKLVLDTSYLDIQKVT 60
Query: 62 ---STLSYNIGTHVDNFGSKLDITLP 84
+ IG + GS L I+LP
Sbjct: 61 INGLPADFAIGERKEPLGSPLTISLP 86
Score = 46.3 bits (110), Expect = 3e-05
Identities = 17/58 (29%), Positives = 27/58 (46%), Gaps = 1/58 (1%)
Query: 415 PFIYGYDTSLQDVCNDLASRWISW-NHTKETPFSKQDLAAFTPGQKIEFLAKSSSYIG 471
P +DT+L D C LA RW+ + F+ +D+ F+ Q + FL + G
Sbjct: 447 PVKPNFDTTLADECYALADRWVDAAKADDLSSFNAKDIKDFSSHQLVLFLETLTERGG 504
Score = 45.9 bits (109), Expect = 3e-05
Identities = 21/79 (26%), Positives = 33/79 (41%), Gaps = 2/79 (2%)
Query: 357 PFIYGYDTSLQDVCNNLASRWISW-NHTKETPFSKQDLAAFTPGHKIEFLAKSSSYIAI- 414
P +DT+L D C LA RW+ + F+ +D+ F+ + FL +
Sbjct: 447 PVKPNFDTTLADECYALADRWVDAAKADDLSSFNAKDIKDFSSHQLVLFLETLTERGGDW 506
Query: 415 PFIYGYDTSLQDVCNDLAS 433
G+ L D+ N AS
Sbjct: 507 ALPEGHIKRLGDIYNFAAS 525
Score = 30.9 bits (70), Expect = 1.6
Identities = 11/37 (29%), Positives = 19/37 (51%)
Query: 120 IEHIDLFLDVNFESKTLSGEAHYVIRRKDPNVTNVIL 156
H DL L V+F + LSG + ++ N+ ++L
Sbjct: 13 TSHTDLNLSVDFTKRKLSGSVTFTLKSLTDNLNKLVL 49
>gnl|CDD|189006 cd09599, M1_LTA4H, Peptidase M1 family contains leukotriene A4
hydrolase. This family includes leukotriene A4
hydrolase (LTA4H; E.C. 3.3.2.6) and the close homolog
cold-active aminopeptidase (Colwellia
psychrerythraea-type peptidase; ColAP), both members of
the aminopeptidase M1 family. LTA4H, is a bifunctional
enzyme possessing an aminopeptidase as well as an
epoxide hydrolase activity. The two activities occupy
different, but overlapping sites. The activity and
physiological relevance of the aminopeptidase is as yet
unknown while the epoxide hydrolase converts leukotriene
A4 (LTA4) into leukotriene B4 (LTB4), a potent
chemotaxin that is fundamental to the inflammatory
response of mammals. It accepts a variety of substrates,
including some opioid, di- and tripeptides, as well as
chromogenic aminoacyl-p-nitroanilide derivatives. The
aminopeptidase activity of LTA4H is possibly involved in
the processing of peptides related to inflammation and
host defense. Kinetic analysis shows that LTA4H
hydrolyzes arginyl tripeptides with high efficiency and
specificity, indicating its function as an arginyl
aminopeptidase. LTA4H is overexpressed in certain human
cancers, and has been identified as a functionally
important target for mediating anticancer properties of
resveratrol, a well known red wine polyphenolic compound
with cancer chemopreventive activity.
Length = 442
Score = 133 bits (338), Expect = 2e-34
Identities = 52/98 (53%), Positives = 67/98 (68%), Gaps = 3/98 (3%)
Query: 157 LKTLGEDNPLTKLIVDLKHTHPDDAFSTCPYEKGHTFLFYLEQLLGGPKDFEPWLKKYLA 216
+KT GED TKL+ DLK PDDAFS+ PYEKG FL+YLEQ LGG + F+P+L+ Y
Sbjct: 346 IKTFGEDPEYTKLVPDLKGVDPDDAFSSVPYEKGFQFLYYLEQ-LGGREVFDPFLRSYFD 404
Query: 217 EFALQSIDTDNFKAHLTSHFAH-KPEI-NQIEWDLWLN 252
+F +SIDT+ FK L +F K EI ++I+WD WL
Sbjct: 405 KFKFKSIDTEQFKDFLLEYFPEDKVEILDKIDWDAWLY 442
Score = 67.9 bits (167), Expect = 3e-12
Identities = 25/89 (28%), Positives = 39/89 (43%), Gaps = 12/89 (13%)
Query: 10 DPNSFSRPELAVIEHIDLFLDVNFESKTLSGEAHYVIRRKDPNVT------------NVE 57
DP+S S + + H+ L L V+FE K LSG A + + +V
Sbjct: 1 DPSSLSNYDEVRVTHLHLDLTVDFEKKILSGSATLTLEVLKDGASELVLDTRDLDIHSVY 60
Query: 58 KNTKSTLSYNIGTHVDNFGSKLDITLPPK 86
+ L + +G + GS L I+LPP+
Sbjct: 61 VDGGKELPFELGPRDEVLGSPLTISLPPE 89
Score = 43.7 bits (104), Expect = 1e-04
Identities = 12/42 (28%), Positives = 20/42 (47%)
Query: 115 IELAVIEHIDLFLDVNFESKTLSGEAHYVIRRKDPNVTNVIL 156
+ + H+ L L V+FE K LSG A + + ++L
Sbjct: 8 YDEVRVTHLHLDLTVDFEKKILSGSATLTLEVLKDGASELVL 49
>gnl|CDD|189002 cd09595, M1, Peptidase M1 family contains aminopeptidase N and
leukotriene A4 hydrolase. M1 Peptidase family includes
aminopeptidase N (APN) and leukotriene A4 hydrolase
(LTA4H). All peptidases in this family bind a single
catalytic zinc ion which is tetrahedrally co-ordinated
by three amino acid ligands and a water molecule that
forms the nucleophile on activation during catalysis.
APN consists of a small N-terminal cytoplasmic domain, a
single transmembrane domain and a large extracellular
ectodomain that contains the active site. It
preferentially cleaves neutral amino acids from the
N-terminus of oligopeptides and is present in a variety
of human tissues and cell types. APN expression is
dysregulated in many inflammatory diseases and is
enhanced in numerous tumor cells, making it a lead
target in the development of anti-cancer and
anti-inflammatory drugs. LTA4H is a bifunctional enzyme,
possessing an aminopeptidase as well as an epoxide
hydrolase activity. The two activities occupy different,
but overlapping sites. The activity and physiological
relevance of the aminopeptidase in LTA4H is as yet
unknown while the epoxide hydrolase converts leukotriene
A4 (LTA4) into leukotriene B4 (LTB4), a potent
chemotaxin that is fundamental to the inflammatory
response of mammals.
Length = 407
Score = 55.9 bits (135), Expect = 2e-08
Identities = 30/103 (29%), Positives = 40/103 (38%), Gaps = 4/103 (3%)
Query: 133 SKTLSGEAHYVIRRKDPNVTNVILLKTLGEDNPLTKLIVDLKHTH-PDDAFSTCPYEKGH 191
+ G + R T + +D V KH P F YEKG
Sbjct: 308 MEATFGTSAREAYRL--EGTRGLRRWRKLQDELPPAPPVMGKHPDDPSVEFDGVFYEKGA 365
Query: 192 TFLFYLEQLLGGPKDFEPWLKKYLAEFALQSIDTDNFKAHLTS 234
L YLE+ L G + F L+KY+ + A QS TD+ L S
Sbjct: 366 LVLRYLEKRL-GDEAFFKGLRKYVEKHAGQSATTDDLLQALES 407
>gnl|CDD|223385 COG0308, PepN, Aminopeptidase N [Amino acid transport and
metabolism].
Length = 859
Score = 45.9 bits (109), Expect = 4e-05
Identities = 23/82 (28%), Positives = 31/82 (37%), Gaps = 8/82 (9%)
Query: 178 PDDAFSTCPYEKGHTFLFYLEQLLGGPKDFEPWLKKYLAEFALQSIDTDNFKAHL--TSH 235
+D F YEKG + L LE LL G + F L Y A + T + L S
Sbjct: 391 INDFFDAIVYEKGASVLRMLETLL-GEEAFRKGLSLYFKRHAGGNATTMDLWKALEDASG 449
Query: 236 FAHKPEINQIEWDLWLNTTGMP 257
++ WL+ G P
Sbjct: 450 KDLSA-----FFESWLSQAGYP 466
>gnl|CDD|204144 pfam09127, Leuk-A4-hydro_C, Leukotriene A4 hydrolase, C-terminal.
Members of this family adopt a structure consisting of
two layers of parallel alpha-helices, five in the inner
layer and four in the outer, arranged in an antiparallel
manner, with perpendicular loops containing short
helical segments on top. They are required for the
formation of a deep cleft harbouring the catalytic Zn2+
site in Leukotriene A4 hydrolase.
Length = 143
Score = 42.2 bits (100), Expect = 8e-05
Identities = 18/66 (27%), Positives = 29/66 (43%), Gaps = 9/66 (13%)
Query: 423 SLQDVCNDLASRWISWNHTKETPFSKQDLAAFTPGQKIEFLAK--------SSSYIGMTQ 474
SL D +LA +W+S + FS D+A ++ Q + FL + + +
Sbjct: 1 SLADAVYELAEKWVS-AAEDGSSFSAADIADWSSHQLVLFLDRLLEPKPLPLEQVKALDE 59
Query: 475 VYKTSA 480
VYK S
Sbjct: 60 VYKLSN 65
Score = 40.7 bits (96), Expect = 3e-04
Identities = 13/43 (30%), Positives = 22/43 (51%), Gaps = 1/43 (2%)
Query: 307 SLQDVCNDLANRWISWNHTKETPFSKQDLAAFTPGHKIEFLAK 349
SL D +LA +W+S + FS D+A ++ + FL +
Sbjct: 1 SLADAVYELAEKWVS-AAEDGSSFSAADIADWSSHQLVLFLDR 42
Score = 38.0 bits (89), Expect = 0.003
Identities = 13/43 (30%), Positives = 21/43 (48%), Gaps = 1/43 (2%)
Query: 365 SLQDVCNNLASRWISWNHTKETPFSKQDLAAFTPGHKIEFLAK 407
SL D LA +W+S + FS D+A ++ + FL +
Sbjct: 1 SLADAVYELAEKWVS-AAEDGSSFSAADIADWSSHQLVLFLDR 42
>gnl|CDD|189010 cd09603, M1_APN_4, Peptidase M1 family Aminopeptidase N. This
family contains mostly bacterial and some archaeal
aminopeptidase N (APN; CD13; Alanyl aminopeptidase; EC
3.4.11.2), a Type II integral membrane protease
belonging to the M1 gluzincin family. APN consists of a
small N-terminal cytoplasmic domain, a single
transmembrane domain and a large extracellular
ectodomain that contains the active site. It
preferentially cleaves neutral amino acids from the
N-terminus of oligopeptides and, in higher eukaryotes,
is present in a variety of human tissues and cell types
(leukocyte, fibroblast, endothelial and epithelial
cells). APN expression is dysregulated in inflammatory
diseases such as chronic pain, rheumatoid arthritis,
multiple sclerosis, systemic sclerosis, systemic lupus
erythematosus, polymyositis/dermatomyosytis and
pulmonary sarcoidosis, and is enhanced in tumor cells
such as melanoma, renal, prostate, pancreas, colon,
gastric and thyroid cancers. It is predominantly
expressed on stem cells and on cells of the granulocytic
and monocytic lineages at distinct stages of
differentiation, thus considered a marker of
differentiation. Thus, APN inhibition may lead to the
development of anti-cancer and anti-inflammatory drugs.
APNs are also present in many pathogenic bacteria and
represent potential drug targets, Some APNs have been
used commercially, such as one from Lactococcus lactis
used in the food industry. APN also serves as a receptor
for coronaviruses, although the virus receptor
interaction site seems to be distinct from the enzymatic
site and aminopeptidase activity is not necessary for
viral infection. APNs have also been extensively studied
as putative Cry toxin receptors. Cry1 proteins are
pore-forming toxins that bind to the midgut epithelial
cell membrane of susceptible insect larvae, causing
extensive damage. Several different toxins, including
Cry1Aa, Cry1Ab, Cry1Ac, Cry1Ba, Cry1Ca and Cry1Fa, have
been shown to bind to APNs; however, a direct role of
APN in cytotoxicity has been yet to be firmly
established.
Length = 415
Score = 35.3 bits (82), Expect = 0.068
Identities = 26/89 (29%), Positives = 37/89 (41%), Gaps = 18/89 (20%)
Query: 176 THPDDAFSTCPYEKGHTFLFYLEQLLGGPKDFEPWLKKYLAEFALQSIDTDNFKAHLTSH 235
P + F YEKG L L +LLG + F L+ YLAE ++ T++F+A
Sbjct: 338 PGPAELFDDHVYEKGALVLHALRRLLGD-EAFFRLLRTYLAEHRGGNVTTEDFRALAEEV 396
Query: 236 -------FAHKPEINQIEWDLWLNTTGMP 257
F +D WL G+P
Sbjct: 397 SGRDLDAF----------FDQWLYGAGLP 415
Score = 29.1 bits (66), Expect = 4.9
Identities = 10/30 (33%), Positives = 13/30 (43%)
Query: 22 IEHIDLFLDVNFESKTLSGEAHYVIRRKDP 51
+ H DL LD + + LSG A R
Sbjct: 2 VLHYDLDLDYDPATNRLSGTATITARATQD 31
Score = 29.1 bits (66), Expect = 4.9
Identities = 10/30 (33%), Positives = 13/30 (43%)
Query: 120 IEHIDLFLDVNFESKTLSGEAHYVIRRKDP 149
+ H DL LD + + LSG A R
Sbjct: 2 VLHYDLDLDYDPATNRLSGTATITARATQD 31
>gnl|CDD|216501 pfam01433, Peptidase_M1, Peptidase family M1. Members of this
family are aminopeptidases. The members differ widely in
specificity, hydrolysing acidic, basic or neutral
N-terminal residues. This family includes leukotriene-A4
hydrolase, this enzyme also has an aminopeptidase
activity.
Length = 390
Score = 32.7 bits (75), Expect = 0.46
Identities = 17/45 (37%), Positives = 21/45 (46%), Gaps = 2/45 (4%)
Query: 113 RLIELAVIEHIDLFLDVNFESKTLSGEAHYVIRRKDPNVTNVILL 157
RL V H DL L +FE T SG ++ K TN I+L
Sbjct: 1 RLPTTVVPIHYDLTLTPDFEKPTFSGSVTITLQAKAA--TNEIVL 43
Score = 28.8 bits (65), Expect = 6.9
Identities = 18/84 (21%), Positives = 27/84 (32%), Gaps = 13/84 (15%)
Query: 16 RPELAVIEHIDLFLDVNFESKTLSGEAHYVIRRKDP-----------NVTNVEKNTKST- 63
P V H DL L +FE T SG ++ K +T+V +
Sbjct: 2 LPTTVVPIHYDLTLTPDFEKPTFSGSVTITLQAKAATNEIVLHSKDLEITSVTLRGEPVS 61
Query: 64 -LSYNIGTHVDNFGSKLDITLPPK 86
+ +D+ L I L
Sbjct: 62 VNNLISVFQLDDEDEFLVINLAST 85
>gnl|CDD|189009 cd09602, M1_APN_3, Peptidase M1 family containing Aminopeptidase N.
This family contains bacterial and eukaryotic
aminopeptidase N (APN; CD13; Alanyl aminopeptidase; EC
3.4.11.2), a Type II integral membrane protease
belonging to the M1 gluzincin family. APN consists of a
small N-terminal cytoplasmic domain, a single
transmembrane domain and a large extracellular
ectodomain that contains the active site. It
preferentially cleaves neutral amino acids from the
N-terminus of oligopeptides and, in higher eukaryotes,
is present in a variety of human tissues and cell types
(leukocyte, fibroblast, endothelial and epithelial
cells). APN expression is dysregulated in inflammatory
diseases such as chronic pain, rheumatoid arthritis,
multiple sclerosis, systemic sclerosis, systemic lupus
erythematosus, polymyositis/dermatomyosytis and
pulmonary sarcoidosis, and is enhanced in tumor cells
such as melanoma, renal, prostate, pancreas, colon,
gastric and thyroid cancers. It is predominantly
expressed on stem cells and on cells of the granulocytic
and monocytic lineages at distinct stages of
differentiation, thus considered a marker of
differentiation. Thus, APN inhibition may lead to the
development of anti-cancer and anti-inflammatory drugs.
APNs are also present in many pathogenic bacteria and
represent potential drug targets, Some APNs have been
used commercially, such as one from Lactococcus lactis
used in the food industry. APN also serves as a receptor
for coronaviruses, although the virus receptor
interaction site seems to be distinct from the enzymatic
site and aminopeptidase activity is not necessary for
viral infection. APNs have also been extensively studied
as putative Cry toxin receptors. Cry1 proteins are
pore-forming toxins that bind to the midgut epithelial
cell membrane of susceptible insect larvae, causing
extensive damage. Several different toxins, including
Cry1Aa, Cry1Ab, Cry1Ac, Cry1Ba, Cry1Ca and Cry1Fa, have
been shown to bind to APNs; however, a direct role of
APN in cytotoxicity has been yet to be firmly
established.
Length = 438
Score = 31.4 bits (72), Expect = 1.1
Identities = 27/108 (25%), Positives = 40/108 (37%), Gaps = 25/108 (23%)
Query: 160 LGEDNPLTKLIVDLKHTHP--------DDAFST---CPYEKGHTFLFYLEQLLGGPKDFE 208
D T THP +DA + Y KG + L L LLG + F
Sbjct: 344 YRADQTPT--------THPIAGDVENTEDALNNFDGITYAKGASVLKQLVALLG-EEKFR 394
Query: 209 PWLKKYLAEFALQSIDTDNFKAHLTSHFAHKPEINQIEW-DLWLNTTG 255
L++Y + A + +F L A +++ W +WL T G
Sbjct: 395 EGLREYFKKHAFGNATLADFLGAL--DEASGRDLS--AWSQVWLRTAG 438
>gnl|CDD|189008 cd09601, M1_APN_2, Peptidase M1 Aminopeptidase N family incudes
tricorn interacting factor F3, Endoplasmic reticulum
aminopeptidase 1 (ERAP1), Aminopeptidase Q (APQ). This
M1 peptidase family includes eukaryotic and bacterial
members: aminopeptidase N (APN), aminopeptidase Q (APQ,
laeverin), endoplasmic reticulum aminopeptidase 1
(ERAP1) as well as tricorn interacting factor F3.
Aminopeptidase N (APN; CD13; Alanyl aminopeptidase; EC
3.4.11.2), a Type II integral membrane protease,
consists of a small N-terminal cytoplasmic domain, a
single transmembrane domain and a large extracellular
ectodomain that contains the active site. It
preferentially cleaves neutral amino acids from the
N-terminus of oligopeptides and is present in a variety
of human tissues and cell types (leukocyte, fibroblast,
endothelial and epithelial cells). APN expression is
dysregulated in inflammatory diseases such as chronic
pain, rheumatoid arthritis, multiple sclerosis, systemic
sclerosis, systemic lupus erythematosus,
polymyositis/dermatomyosytis and pulmonary sarcoidosis,
and is enhanced in tumor cells such as melanoma, renal,
prostate, pancreas, colon, gastric and thyroid cancers.
It is considered a marker of differentiation since it is
predominantly expressed on stem cells and on cells of
the granulocytic and monocytic lineages at distinct
stages of differentiation. Thus, APN inhibition may lead
to the development of anti-cancer and anti-inflammatory
drugs. ERAP1 also known as endoplasmic reticulum
aminopeptidase associated with antigen processing
(ERAAP), adipocyte derived leucine aminopeptidase
(A-LAP) or aminopeptidase regulating tumor necrosis
factor receptor I (THFRI) shedding (ARTS-1), associates
with the closely related ER aminopeptidase ERAP2, for
the final trimming of peptides within the ER for
presentation by MHC class I molecules. ERAP1 is
associated with ankylosing spondylitis (AS), an
inflammatory arthritis that predominantly affects the
spine. ERAP1 also aids in the shedding of membrane-bound
cytokine receptors. The tricorn interacting factor F3,
together with factors F1 and F2, degrades the tricorn
protease products, producing free amino acids, thus
completing the proteasomal degradation pathway. F3 is
homologous to F2, but not F1, and shows a strong
preference for glutamate in the P1' position. APQ, also
known as laeverin, is specifically expressed in human
embryo-derived extravillous trophoblasts (EVTs) that
invade the uterus during early placentation. It cleaves
the N-terminal amino acid of various peptides such as
angiotensin III, endokinin C, and kisspeptin-10, all
expressed in the placenta in large quantities. APN is a
receptor for coronaviruses, although the virus receptor
interaction site seems to be distinct from the enzymatic
site and aminopeptidase activity is not necessary for
viral infection. APNs are also putative Cry toxin
receptors. Cry1 proteins are pore-forming toxins that
bind to the midgut epithelial cell membrane of
susceptible insect larvae, causing extensive damage.
Several different toxins, including Cry1Aa, Cry1Ab,
Cry1Ac, Cry1Ba, Cry1Ca and Cry1Fa, have been shown to
bind to APNs; however, a direct role of APN in
cytotoxicity has been yet to be firmly established.
Length = 446
Score = 31.4 bits (72), Expect = 1.2
Identities = 22/77 (28%), Positives = 32/77 (41%), Gaps = 13/77 (16%)
Query: 169 LIVD-LKHTHP-----------DDAFSTCPYEKGHTFLFYLEQLLGGPKDFEPWLKKYLA 216
L +D L +HP + F Y KG + L LE LG + F L+ YL
Sbjct: 348 LALDSLASSHPISVPVETPDEISEIFDAISYSKGASVLRMLEHFLG-EEVFRKGLRNYLK 406
Query: 217 EFALQSIDTDNFKAHLT 233
+ A + TD+ L+
Sbjct: 407 KHAYGNATTDDLWEALS 423
>gnl|CDD|189011 cd09604, M1_APN_5, Peptidase M1 family containing bacterial
Aminopeptidase N. This family contains bacterial
aminopeptidase N (APN; CD13; Alanyl aminopeptidase; EC
3.4.11.2), a Type II integral membrane protease
belonging to the M1 gluzincin family. APN consists of a
small N-terminal cytoplasmic domain, a single
transmembrane domain and a large extracellular
ectodomain that contains the active site. It
preferentially cleaves neutral amino acids from the
N-terminus of oligopeptides and, in higher eukaryotes,
is present in a variety of human tissues and cell types
(leukocyte, fibroblast, endothelial and epithelial
cells). APN expression is dysregulated in inflammatory
diseases such as chronic pain, rheumatoid arthritis,
multiple sclerosis, systemic sclerosis, systemic lupus
erythematosus, polymyositis/dermatomyosytis and
pulmonary sarcoidosis, and is enhanced in tumor cells
such as melanoma, renal, prostate, pancreas, colon,
gastric and thyroid cancers. It is predominantly
expressed on stem cells and on cells of the granulocytic
and monocytic lineages at distinct stages of
differentiation, thus considered a marker of
differentiation. Thus, APN inhibition may lead to the
development of anti-cancer and anti-inflammatory drugs.
APNs are also present in many pathogenic bacteria and
represent potential drug targets, Some APNs have been
used commercially, such as one from Lactococcus lactis
used in the food industry. APN also serves as a receptor
for coronaviruses, although the virus receptor
interaction site seems to be distinct from the enzymatic
site and aminopeptidase activity is not necessary for
viral infection. APNs have also been extensively studied
as putative Cry toxin receptors. Cry1 proteins are
pore-forming toxins that bind to the midgut epithelial
cell membrane of susceptible insect larvae, causing
extensive damage. Several different toxins, including
Cry1Aa, Cry1Ab, Cry1Ac, Cry1Ba, Cry1Ca and Cry1Fa, have
been shown to bind to APNs; however, a direct role of
APN in cytotoxicity has been yet to be firmly
established.
Length = 435
Score = 30.4 bits (69), Expect = 2.1
Identities = 12/44 (27%), Positives = 22/44 (50%), Gaps = 1/44 (2%)
Query: 187 YEKGHTFLFYLEQLLGGPKDFEPWLKKYLAEFALQSIDTDNFKA 230
Y KG L L + +G + F+ L+ Y E+A + ++F+
Sbjct: 375 YGKGAMVLHMLRKEIG-DEAFDKALRTYYREYAFKHATPEDFRR 417
>gnl|CDD|225898 COG3363, COG3363, Archaeal IMP cyclohydrolase [Nucleotide transport
and metabolism].
Length = 200
Score = 29.1 bits (65), Expect = 3.7
Identities = 21/69 (30%), Positives = 32/69 (46%), Gaps = 7/69 (10%)
Query: 47 RRKDPNVT-NVEKNTKSTLSYNIGTHVDNFGSKLDITLPPKDKDHNRWCLVVKTLPSNKE 105
++P VT N + T + G+H D KL+ +PP+D LV L + E
Sbjct: 50 ITENPYVTYNCIRIVDETAVVSNGSHTDPIADKLESGVPPRD------ALVSVLLAMDYE 103
Query: 106 GDGFNFPRL 114
D +N PR+
Sbjct: 104 KDEYNTPRI 112
>gnl|CDD|233639 TIGR01922, purO_arch, IMP cyclohydrolase. This model represents
IMP cyclohydrolase, the final step in the biosynthesis
of inosine monophosphate (IMP) in archaea. In bacteria
this step is catalyzed by a bifunctional enzyme (purH).
Length = 199
Score = 29.1 bits (65), Expect = 3.7
Identities = 21/69 (30%), Positives = 32/69 (46%), Gaps = 7/69 (10%)
Query: 47 RRKDPNVT-NVEKNTKSTLSYNIGTHVDNFGSKLDITLPPKDKDHNRWCLVVKTLPSNKE 105
++P VT N + T + G+H D KL+ +PP+D LV L + E
Sbjct: 50 ITENPYVTYNCIRIVDETAVVSNGSHTDPIADKLESGVPPRD------ALVSVLLAMDYE 103
Query: 106 GDGFNFPRL 114
D +N PR+
Sbjct: 104 KDEYNTPRI 112
>gnl|CDD|236798 PRK10929, PRK10929, putative mechanosensitive channel protein;
Provisional.
Length = 1109
Score = 29.3 bits (66), Expect = 5.4
Identities = 9/16 (56%), Positives = 14/16 (87%)
Query: 110 NFPRLIELAVIEHIDL 125
N P L+ELA+++H+DL
Sbjct: 852 NLPALLELALLQHLDL 867
>gnl|CDD|211733 TIGR02341, chap_CCT_beta, T-complex protein 1, beta subunit.
Members of this family, all eukaryotic, are part of the
group II chaperonin complex called CCT (chaperonin
containing TCP-1) or TRiC. The archaeal equivalent group
II chaperonin is often called the thermosome. Both are
somewhat related to the group I chaperonin of bacterial,
GroEL/GroES. This family consists exclusively of the CCT
beta chain (part of a paralogous family) from animals,
plants, fungi, and other eukaryotes.
Length = 518
Score = 28.7 bits (64), Expect = 7.6
Identities = 12/32 (37%), Positives = 20/32 (62%), Gaps = 2/32 (6%)
Query: 151 VTN--VILLKTLGEDNPLTKLIVDLKHTHPDD 180
VTN +LK++G DNP K++V++ D+
Sbjct: 53 VTNDGATILKSIGLDNPAAKVLVNISKVQDDE 84
>gnl|CDD|199907 cd10320, RGL4_N, N-terminal catalytic domain of rhamnogalacturonan
lyase, a family 4 polysaccharide lyase. The
rhamnogalacturonan lyase of the polysaccharide lyase
family 4 (RGL4) is involved in the degradation of RG
(rhamnogalacturonan) type-I, an important pectic plant
cell wall polysaccharide, by cleaving the alpha-1,4
glycoside bond between L-rhamnose and D-galacturonic
acids in the backbone of RG type-I through a
beta-elimination reaction. RGL4 consists of three
domains, an N-terminal catalytic domain, a middle domain
with a FNIII type fold and a C-terminal domain with a
jelly roll fold; the middle and C-terminal domains are
both putative carbohydrate binding modules. There are
two types of RG lyases, which both cleave the alpha-1,4
bonds of the RG-I main chain (RG chain) through the
beta-elimination reaction, but belong to two
structurally unrelated polysaccharide lyase (PL)
families, 4 and 11.
Length = 265
Score = 28.1 bits (63), Expect = 8.6
Identities = 11/50 (22%), Positives = 21/50 (42%), Gaps = 2/50 (4%)
Query: 21 VIEHIDL-FLDVNFESKTLSGEAHYVIRRKDPNVTNVEKNTKSTLSYNIG 69
V ++ ++F T E HYV+R+ +P + T ++G
Sbjct: 77 VSATQSGDYIQISFSR-TFETELHYVVRKGEPGIYMYTVATHPAPEPSLG 125
>gnl|CDD|239452 cd03336, TCP1_beta, TCP-1 (CTT or eukaryotic type II) chaperonin
family, beta subunit. Chaperonins are involved in
productive folding of proteins. They share a common
general morphology, a double toroid of 2 stacked rings.
In contrast to bacterial group I chaperonins (GroEL),
each ring of the eukaryotic cytosolic chaperonin (CTT)
consists of eight different, but homologous subunits.
Their common function is to sequester nonnative proteins
inside their central cavity and promote folding by using
energy derived from ATP hydrolysis. The best studied in
vivo substrates of CTT are actin and tubulin.
Length = 517
Score = 28.4 bits (64), Expect = 9.8
Identities = 14/37 (37%), Positives = 20/37 (54%), Gaps = 2/37 (5%)
Query: 145 RRKDPNVTN--VILLKTLGEDNPLTKLIVDLKHTHPD 179
R VTN +LK++G DNP K++VD+ D
Sbjct: 47 RSGGVTVTNDGATILKSIGVDNPAAKVLVDISKVQDD 83
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 0.135 0.424
Gapped
Lambda K H
0.267 0.0761 0.140
Matrix: BLOSUM62
Gap Penalties: Existence: 11, Extension: 1
Number of Sequences: 44354
Number of Hits to DB: 24,766,512
Number of extensions: 2360007
Number of successful extensions: 1758
Number of sequences better than 10.0: 1
Number of HSP's gapped: 1744
Number of HSP's successfully gapped: 31
Length of query: 482
Length of database: 10,937,602
Length adjustment: 101
Effective length of query: 381
Effective length of database: 6,457,848
Effective search space: 2460440088
Effective search space used: 2460440088
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: 61 (27.2 bits)