RPS-BLAST 2.2.26 [Sep-21-2011]
Database: CDD.v3.10
44,354 sequences; 10,937,602 total letters
Searching..................................................done
Query= psy5110
(284 letters)
>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 = 149 bits (378), Expect = 5e-42
Identities = 56/130 (43%), Positives = 65/130 (50%), Gaps = 27/130 (20%)
Query: 122 AAGLLENFGL--------------------------VAHELAHQWFGNYATPSWWSYAWL 155
AAG +EN+GL VAHELAHQWFGN T WW WL
Sbjct: 254 AAGAMENWGLITYRETALLYDPKTSSASNKQRVATVVAHELAHQWFGNLVTMKWWDDLWL 313
Query: 156 KESVATLFEYYVVSWVEPTWRMEDLFVVEQVQVAFNSD-LKGSHAMTSETTTPDSISETF 214
E AT EY V +EP W M D FV++ +Q A D L SH ++ TPD ISE F
Sbjct: 314 NEGFATYMEYLGVDHLEPEWNMWDQFVLDDLQSALALDSLASSHPISVPVETPDEISEIF 373
Query: 215 DHIIYNKGQS 224
D I Y+KG S
Sbjct: 374 DAISYSKGAS 383
>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 = 132 bits (335), Expect = 3e-36
Identities = 48/110 (43%), Positives = 61/110 (55%), Gaps = 1/110 (0%)
Query: 114 LADSNRTTAAGLLENFGLVAHELAHQWFGNYATPSWWSYAWLKESVATLFEYYVVSWVEP 173
L D +T++ ++AHELAHQWFGN T WW WL E AT EY + +EP
Sbjct: 281 LYDPGNSTSSDKQRVAEVIAHELAHQWFGNLVTMDWWDDLWLNEGFATYMEYLITDALEP 340
Query: 174 TWRMEDLFVVEQVQVAFNSD-LKGSHAMTSETTTPDSISETFDHIIYNKG 222
WR+E+ FV+ +VQ A D L SH +T TP I + FD I Y KG
Sbjct: 341 EWRIEEQFVLREVQSALALDSLDSSHPITVNVNTPSEIDDIFDAISYEKG 390
>gnl|CDD|223385 COG0308, PepN, Aminopeptidase N [Amino acid transport and
metabolism].
Length = 859
Score = 89.1 bits (221), Expect = 7e-20
Identities = 37/95 (38%), Positives = 47/95 (49%), Gaps = 4/95 (4%)
Query: 131 LVAHELAHQWFGNYATPSWWSYAWLKESVATLFEYYVVSWVEP--TWRMEDLFVVEQVQV 188
++AHELAHQWFGN T WW WL E AT E + R ED F + +
Sbjct: 310 VIAHELAHQWFGNLVTMKWWDDLWLNEGFATFREVLWSEDLGGRAWKRWED-FRTLRTSI 368
Query: 189 AFNSD-LKGSHAMTSETTTPDSISETFDHIIYNKG 222
A D L SH + + P I++ FD I+Y KG
Sbjct: 369 ALAEDSLPSSHPIRVDVYDPKEINDFFDAIVYEKG 403
>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 = 76.5 bits (189), Expect = 8e-16
Identities = 34/104 (32%), Positives = 46/104 (44%), Gaps = 19/104 (18%)
Query: 131 LVAHELAHQWFGNYATPSWWSYAWLKESVATLFEYYVVSWVEPTWRMED--LFVVEQVQV 188
+AHE+AH WFG+ T WW+ WL ES A Y +S E T + F +++ Q
Sbjct: 285 TIAHEMAHMWFGDLVTMKWWNDLWLNESFAEYMAYKALS--EATPFTDAWLTFFLDRKQW 342
Query: 189 AFNSDLKGSHAMTSETTTP--------DSISETFDHIIYNKGQS 224
A+ +D TT P + FD I Y KG S
Sbjct: 343 AYRADQT-------PTTHPIAGDVENTEDALNNFDGITYAKGAS 379
>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 = 65.9 bits (161), Expect = 3e-12
Identities = 31/97 (31%), Positives = 39/97 (40%), Gaps = 4/97 (4%)
Query: 131 LVAHELAHQWFGNYATPSWWSYAWLKESVATLFEYYVVSWVEPT--WRMEDLFVVEQVQV 188
++AHELAHQWFGN T + W+ WL E AT E + T L ++
Sbjct: 271 VIAHELAHQWFGNLVTGARWNDLWLNEGFATYLEGLWMEATFGTSAREAYRLEGTRGLRR 330
Query: 189 -AFNSDLKGSHAMTSETTTPDSISETFDHIIYNKGQS 224
D A PD S FD + Y KG
Sbjct: 331 WRKLQDE-LPPAPPVMGKHPDDPSVEFDGVFYEKGAL 366
>gnl|CDD|233857 TIGR02412, pepN_strep_liv, aminopeptidase N, Streptomyces lividans
type. This family is a subset of the members of the
zinc metallopeptidase family M1 (pfam01433), with a
single member characterized in Streptomyces lividans 66
and designated aminopeptidase N. The spectrum of
activity may differ somewhat from the aminopeptidase N
clade of E. coli and most other Proteobacteria, well
separated phylogenetically within the M1 family. The M1
family also includes leukotriene A-4
hydrolase/aminopeptidase (with a bifunctional active
site).
Length = 831
Score = 64.4 bits (157), Expect = 1e-11
Identities = 30/99 (30%), Positives = 43/99 (43%), Gaps = 7/99 (7%)
Query: 130 GLVAHELAHQWFGNYATPSWWSYAWLKESVATLFEYYV---VSWVEPTWRMEDLFVVEQV 186
G++ HE+AH WFG+ T WW+ WL ES A + W F +
Sbjct: 289 GVILHEMAHMWFGDLVTMRWWNDLWLNESFAEYMGTLASAEATEYTDAWTT---FAAQGK 345
Query: 187 QVAFNSD-LKGSHAMTSETTTPDSISETFDHIIYNKGQS 224
Q A+ +D L +H + ++ FD I Y KG S
Sbjct: 346 QWAYEADQLPTTHPIVADVADLADALSNFDGITYAKGAS 384
>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 = 63.0 bits (154), Expect = 3e-11
Identities = 31/93 (33%), Positives = 38/93 (40%), Gaps = 7/93 (7%)
Query: 130 GLVAHELAHQWFGNYATPSWWSYAWLKESVATLFEYYVVSWVEPTWRMEDLFVVEQVQVA 189
L+AHELAHQWFG+ T + WS WL E AT E+ W E + D A
Sbjct: 267 RLIAHELAHQWFGDSVTCADWSDIWLNEGFATYAEWL---WSEHSG-GRDAAQYALYAYA 322
Query: 190 FNSDLKGSHAMTSETTTPDSISETFDHIIYNKG 222
+ P E FD +Y KG
Sbjct: 323 RLYANEADLGPRPPVPGPA---ELFDDHVYEKG 352
>gnl|CDD|222169 pfam13485, Peptidase_MA_2, Peptidase MA superfamily.
Length = 128
Score = 47.5 bits (113), Expect = 4e-07
Identities = 16/68 (23%), Positives = 29/68 (42%), Gaps = 4/68 (5%)
Query: 130 GLVAHELAHQWFGNYATPSWWSYAWLKESVATLFEY----YVVSWVEPTWRMEDLFVVEQ 185
G++AHELAH GN + WL E +A + + R L +++
Sbjct: 27 GVLAHELAHVVLGNLVGGNGNLPRWLTEGLAEYVAGRIDPERAAELRDAVRSGRLPPLDE 86
Query: 186 VQVAFNSD 193
+ F+++
Sbjct: 87 LSADFSAN 94
>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 = 42.9 bits (102), Expect = 1e-04
Identities = 15/35 (42%), Positives = 19/35 (54%)
Query: 130 GLVAHELAHQWFGNYATPSWWSYAWLKESVATLFE 164
+VAHE+AH W GN T + W + WL E E
Sbjct: 284 DVVAHEIAHSWSGNLVTNATWEHFWLNEGFTVYLE 318
>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 = 41.6 bits (98), Expect = 3e-04
Identities = 19/98 (19%), Positives = 29/98 (29%), Gaps = 14/98 (14%)
Query: 130 GLVAHELAHQWFGN--YATPSWWSYAWLKESVATLFEYYVVSWV---EPTWRMEDLFVVE 184
++AHE+AHQW+ WL E + T Y + E + +
Sbjct: 290 TVLAHEIAHQWWYGIVGNDERNE--PWLDEGLTTYLTDYYLEERYGKEAARLYRLRRLTD 347
Query: 185 QVQVAFNSDLKGSHAMTSETTTPDSISETFDHIIYNKG 222
+ L S + I Y KG
Sbjct: 348 ------YAALVNSRNDPPLAFFFRNNGAYSA-IAYGKG 378
>gnl|CDD|189001 cd09594, GluZincin, Peptidase Gluzincin family (thermolysin-like
proteinases, TLPs) includes peptidases M1, M2, M3, M4,
M13, M32 and M36 (fungalysins). Gluzincin family
(thermolysin-like peptidases or TLPs) includes several
zinc-dependent metallopeptidases such as the M1, M2, M3,
M4, M13, M32, M36 peptidases (MEROPS classification),
and contain HEXXH and EXXXD motifs as part of their
active site. 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. M1
family includes aminopeptidase N (APN) and leukotriene
A4 hydrolase (LTA4H). APN preferentially cleaves
neutral amino acids from the N-terminus of oligopeptides
and is present in a variety of human tissues and cell
types. LTA4H is a bifunctional enzyme, possessing an
aminopeptidase as well as an epoxide hydrolase activity
such that the two activities occupy different, but
overlapping sites. The peptidase M3 or neurolysin-like
family, includes M3, M2 and M32 metallopeptidases. The
M3 peptidases have two subfamilies: M3A, includes thimet
oligopeptidase (TOP; endopeptidase 3.4.24.15),
neurolysin (3.4.24.16), and the mitochondrial
intermediate peptidase; M3B contains oligopeptidase F.
M2 peptidase angiotensin converting enzyme (ACE, EC
3.4.15.1) catalyzes the conversion of decapeptide
angiotensin I to the potent vasopressor octapeptide
angiotensin II. ACE is a key part of the
renin-angiotensin system that regulates blood pressure,
thus ACE inhibitors are important for the treatment of
hypertension. M32 family includes two eukaryotic enzymes
from protozoa Trypanosoma cruzi, a causative agent of
Chagas' disease, and Leishmania major, a parasite that
causes leishmaniasis, making them attractive targets for
drug development. The M4 family includes secreted
protease thermolysin (EC 3.4.24.27), pseudolysin,
aureolysin, neutral protease as well as fungalysin and
bacillolysin (EC 3.4.24.28) that degrade extracellular
proteins and peptides for bacterial nutrition,
especially prior to sporulation. Thermolysin is widely
used as a nonspecific protease to obtain fragments for
peptide sequencing as well as in production of the
artificial sweetener aspartame. M13 family includes
neprilysin (EC 3.4.24.11) and endothelin-converting
enzyme I (ECE-1, EC 3.4.24.71), which fulfill a broad
range of physiological roles due to the greater
variation in the S2' subsite allowing substrate
specificity and are prime therapeutic targets for
selective inhibition. Peptidase M36 (fungamysin) family
includes endopeptidases from pathogenic fungi.
Fungalysin hydrolyzes extracellular matrix proteins such
as elastin and keratin. Aspergillus fumigatus causes the
pulmonary disease aspergillosis by invading the lungs of
immuno-compromised animals and secreting fungalysin that
possibly breaks down proteinaceous structural barriers.
Length = 125
Score = 39.7 bits (93), Expect = 3e-04
Identities = 13/46 (28%), Positives = 15/46 (32%), Gaps = 5/46 (10%)
Query: 129 FGLVAHELAHQWFGN-YATPSWWSYA----WLKESVATLFEYYVVS 169
FG+V HEL H Y L E + FE V
Sbjct: 70 FGVVGHELTHGVTDQLVGNDPDLLYTNGSGGLNEGPSDFFELLVAY 115
>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 = 39.8 bits (93), Expect = 0.001
Identities = 18/38 (47%), Positives = 21/38 (55%)
Query: 120 TTAAGLLENFGLVAHELAHQWFGNYATPSWWSYAWLKE 157
T AG N ++AHELAH W GN T W + WL E
Sbjct: 271 TLIAGDRSNVDVIAHELAHSWSGNLVTNCSWEHFWLNE 308
>gnl|CDD|189018 cd09839, M1_TAF2, TATA binding protein (TBP) associated factor 2.
This family includes TATA binding protein (TBP)
associated factor 2 (TAF2, TBP-associated factor
TAFII150, transcription initiation factor TFIID subunit
2, RNA polymerase II TBP-associated factor subunit B),
and has homology to the aminopeptidase N (APN)
subfamily, belonging to the M1 gluzincin family. TAF2 is
part of the TFIID multidomain subunit complex essential
for transcription of most protein-encoded genes by RNA
polymerase II. TAF2 is known to interact with the
initiator element (Inr) found at the transcription start
site of many genes, thus possibly playing a key role in
promoter binding as well as start-site selection. Image
analysis has shown TAF2 to form a complex with TAF1 and
TBP, inferring its role in promoter recognition.
Peptidases in the M1 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. TAF2,
however, does not seem to contain any of the active site
residues.
Length = 507
Score = 32.7 bits (75), Expect = 0.21
Identities = 13/28 (46%), Positives = 18/28 (64%)
Query: 133 AHELAHQWFGNYATPSWWSYAWLKESVA 160
A+ LA QWFG + +P WS WL + +A
Sbjct: 319 AYALASQWFGCFISPEAWSDEWLLKGIA 346
>gnl|CDD|189007 cd09600, M1_APN_1, Peptidase M1 family containing Aminopeptidase N.
This family contains aminopeptidase N (APN; CD13;
Alanyl aminopeptidase; EC 3.4.11.2), a Type II integral
membrane protease belonging to the M1 gluzincin family.
It includes bacterial-type alanyl aminopeptidases as
well as PfA-M1 aminopeptidase (Plasmodium
falciparum-type). 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 = 861
Score = 32.2 bits (74), Expect = 0.35
Identities = 16/44 (36%), Positives = 18/44 (40%)
Query: 114 LADSNRTTAAGLLENFGLVAHELAHQWFGNYATPSWWSYAWLKE 157
LAD T A ++ HE H W GN T W LKE
Sbjct: 269 LADPETATDADYERIESVIGHEYFHNWTGNRVTCRDWFQLSLKE 312
>gnl|CDD|233858 TIGR02414, pepN_proteo, aminopeptidase N, Escherichia coli type.
The M1 family of zinc metallopeptidases contains a
number of distinct, well-separated clades of proteins
with aminopeptidase activity. Several are designated
aminopeptidase N, EC 3.4.11.2, after the Escherichia
coli enzyme, suggesting a similar activity profile (see
SP|P04825 for a description of catalytic activity). This
family consists of all aminopeptidases closely related
to E. coli PepN and presumed to have similar (not
identical) function. Nearly all are found in
Proteobacteria, but members are found also in
Cyanobacteria, plants, and apicomplexan parasites. This
family differs greatly in sequence from the family of
aminopeptidases typified by Streptomyces lividans PepN
(TIGR02412), from the membrane bound aminopeptidase N
family in animals, etc [Protein fate, Degradation of
proteins, peptides, and glycopeptides].
Length = 863
Score = 31.9 bits (73), Expect = 0.42
Identities = 18/46 (39%), Positives = 20/46 (43%)
Query: 112 YGLADSNRTTAAGLLENFGLVAHELAHQWFGNYATPSWWSYAWLKE 157
Y LAD T A ++AHE H W GN T W LKE
Sbjct: 267 YVLADPETATDADYERIESVIAHEYFHNWTGNRVTCRDWFQLSLKE 312
>gnl|CDD|223822 COG0751, GlyS, Glycyl-tRNA synthetase, beta subunit [Translation,
ribosomal structure and biogenesis].
Length = 691
Score = 29.5 bits (67), Expect = 2.2
Identities = 13/25 (52%), Positives = 15/25 (60%), Gaps = 6/25 (24%)
Query: 9 PFRIVLCNGEP------IQGNEKVL 27
P I + NGEP I+GNEKVL
Sbjct: 300 PHFIFVSNGEPKDPENIIEGNEKVL 324
>gnl|CDD|182052 PRK09731, PRK09731, putative general secretion pathway protein
YghD; Provisional.
Length = 178
Score = 28.9 bits (64), Expect = 2.5
Identities = 19/52 (36%), Positives = 26/52 (50%), Gaps = 5/52 (9%)
Query: 165 YYVVSWVEPTWRMEDLFVVEQVQVAFNSDLKGS-----HAMTSETTTPDSIS 211
YYV+ W + R+E + Q VA N+ LK + A S TTTP +S
Sbjct: 52 YYVLIWQPLSERIEQQETMLQQLVAMNTRLKSAAPDIIAARKSATTTPAQVS 103
>gnl|CDD|237859 PRK14908, PRK14908, glycyl-tRNA synthetase; Provisional.
Length = 1000
Score = 29.2 bits (66), Expect = 2.8
Identities = 8/24 (33%), Positives = 14/24 (58%), Gaps = 4/24 (16%)
Query: 8 KPFRIVLCNGEP----IQGNEKVL 27
+++ +G P ++GNEKVL
Sbjct: 614 LNHFVIVADGSPDDEIVRGNEKVL 637
>gnl|CDD|114047 pfam05299, Peptidase_M61, M61 glycyl aminopeptidase. Glycyl
aminopeptidase is an unusual peptidase in that it has a
preference for substrates with an N-terminal glycine or
alanine. These proteins are found in Bacteria and in
Archaea.
Length = 122
Score = 27.0 bits (60), Expect = 5.5
Identities = 8/18 (44%), Positives = 9/18 (50%)
Query: 130 GLVAHELAHQWFGNYATP 147
L+AHE H W G P
Sbjct: 6 DLLAHEFFHSWNGKRIRP 23
>gnl|CDD|239221 cd02891, A2M_like, Proteins similar to alpha2-macroglobulin (alpha
(2)-M). Alpha (2)-M is a major carrier protein in
serum. It is a broadly specific proteinase inhibitor.
The structural thioester of alpha (2)-M, is involved in
the immobilization and entrapment of proteases. This
group contains another broadly specific proteinase
inhibitor: pregnancy zone protein (PZP). PZP is a
trace protein in the plasma of non-pregnant females and
males which is elevated in pregnancy. Alpha (2)-M and PZ
bind to placental protein-14 and may modulate its
activity in T-cell growth and cytokine production
thereby protecting the allogeneic fetus from attack by
the maternal immune system. This group also contains C3,
C4 and C5 of vertebrate complement. The vertebrate
complement is an effector of both the acquired and
innate immune systems The point of convergence of the
classical, alternative and lectin pathways of the
complement system is the proteolytic activation of C3.
C4 plays a key role in propagating the classical and
lectin pathways. C5 participates in the classical and
alternative pathways. The thioester bond located within
the structure of C3 and C4 is central to the function of
complement. C5 does not contain an active thioester
bond.
Length = 282
Score = 28.1 bits (63), Expect = 5.7
Identities = 16/81 (19%), Positives = 23/81 (28%), Gaps = 24/81 (29%)
Query: 77 EQNISRTASPLFILPLSMSLVLFLPPVSMLCSSELYGLADSNRTTAAGLLENFGLVAHEL 136
EQ +SR A L++L L R A + L
Sbjct: 17 EQTMSRAAPNLYVLKY---------------LDATGQLTPEIREKALEYIRKG--YQRLL 59
Query: 137 AHQ-------WFGNYATPSWW 150
+Q +GN + S W
Sbjct: 60 TYQRSDGSFSAWGNSDSGSTW 80
>gnl|CDD|236109 PRK07827, PRK07827, enoyl-CoA hydratase; Provisional.
Length = 260
Score = 27.7 bits (62), Expect = 6.3
Identities = 11/27 (40%), Positives = 14/27 (51%)
Query: 113 GLADSNRTTAAGLLENFGLVAHELAHQ 139
GLA+S T A +L F A EL +
Sbjct: 207 GLAESKALTTAAVLAGFDRDAEELTEE 233
>gnl|CDD|224554 COG1639, COG1639, Predicted signal transduction protein [Signal
transduction mechanisms].
Length = 289
Score = 27.8 bits (62), Expect = 6.7
Identities = 10/31 (32%), Positives = 13/31 (41%), Gaps = 1/31 (3%)
Query: 112 YGLADSNRTTAAGLLENFGLVA-HELAHQWF 141
G ADS+ AGLL N G++
Sbjct: 135 LGRADSDEAYTAGLLHNLGILVLLTDFPDHC 165
>gnl|CDD|216871 pfam02092, tRNA_synt_2f, Glycyl-tRNA synthetase beta subunit.
Length = 549
Score = 27.8 bits (63), Expect = 7.5
Identities = 10/22 (45%), Positives = 13/22 (59%), Gaps = 6/22 (27%)
Query: 12 IVLCNGEP------IQGNEKVL 27
I + NGE I+GNE+VL
Sbjct: 296 ITVSNGESKDPENIIKGNERVL 317
>gnl|CDD|237383 PRK13421, PRK13421, F0F1 ATP synthase subunit A; Provisional.
Length = 223
Score = 27.4 bits (61), Expect = 8.0
Identities = 11/25 (44%), Positives = 16/25 (64%)
Query: 166 YVVSWVEPTWRMEDLFVVEQVQVAF 190
Y+ ++ EPTW M L +VEQ+ F
Sbjct: 134 YLATFAEPTWVMIPLNLVEQLTRTF 158
>gnl|CDD|183240 PRK11624, cdsA, CDP-diglyceride synthase; Provisional.
Length = 285
Score = 27.3 bits (61), Expect = 8.5
Identities = 22/98 (22%), Positives = 34/98 (34%), Gaps = 23/98 (23%)
Query: 81 SRTASPLFILPLSMSLVLFLPP---------VSMLCSSE---LYGLADSNRTTAAGLLEN 128
R + ++P+ ++ + LPP V ML + E L G A ++ +L
Sbjct: 4 YRLITAFILIPVVIAALFLLPPVGFAIVTLVVCMLAAWEWGQLSGFASRSQRVWLAVLCG 63
Query: 129 FGLVA--------HELAHQWFGNY---ATPSWWSYAWL 155
L H HQ A+ WW A L
Sbjct: 64 LLLALMLFLLPEYHHNIHQPLVEISLWASLGWWIVALL 101
>gnl|CDD|187791 cd09660, Csx1_III-U, CRISPR/Cas system-associated protein Csx1.
CRISPR (Clustered Regularly Interspaced Short
Palindromic Repeats) and associated Cas proteins
comprise a system for heritable host defense by
prokaryotic cells against phage and other foreign DNA;
Protein of this family often fused to HTH domain; Some
proteins could have an additional fusion with
RecB-family nuclease domain; Core domain appears to have
a Rossmann-like fold; loosely associated with CRISPR/Cas
systems; also known as MJ1666 family.
Length = 394
Score = 27.4 bits (61), Expect = 9.5
Identities = 12/60 (20%), Positives = 23/60 (38%), Gaps = 12/60 (20%)
Query: 50 KKVVFSPWSVRNVRTY----YRFKWEKVESCEQNISRTASPLFILPLSMSLVLFLPPVSM 105
K++ +PW N + + Y +K ES ++ L V+ + P S+
Sbjct: 1 MKILIAPW--GNPKGWQKVKYSINGKKYESN------SSLKAIKELLKPDKVIIIVPDSL 52
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
0.320 0.135 0.432
Gapped
Lambda K H
0.267 0.0623 0.140
Matrix: BLOSUM62
Gap Penalties: Existence: 11, Extension: 1
Number of Sequences: 44354
Number of Hits to DB: 14,353,906
Number of extensions: 1312494
Number of successful extensions: 1062
Number of sequences better than 10.0: 1
Number of HSP's gapped: 1052
Number of HSP's successfully gapped: 33
Length of query: 284
Length of database: 10,937,602
Length adjustment: 96
Effective length of query: 188
Effective length of database: 6,679,618
Effective search space: 1255768184
Effective search space used: 1255768184
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 (21.8 bits)
S2: 58 (26.3 bits)