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Conserved domains on  [gi|2462558938|ref|XP_054173851|]
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puromycin-sensitive aminopeptidase isoform X1 [Homo sapiens]

Protein Classification

M1 family metallopeptidase( domain architecture ID 10329674)

M1 family metallopeptidase similar to aminopeptidase N (APN; EC 3.4.11.2) that preferentially cleaves neutral amino acids from the N-terminus of oligopeptides and to Caenorhabditis elegans aminopeptidase-like protein AC3.5 that is likely inactive

Graphical summary

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List of domain hits

Name Accession Description Interval E-value
ERAP1_C pfam11838
ERAP1-like C-terminal domain; This large domain is composed of 16 alpha helices organized as 8 ...
132-445 3.98e-110

ERAP1-like C-terminal domain; This large domain is composed of 16 alpha helices organized as 8 HEAT-like repeats. This domain forms a concave face that faces towards the active site of the peptidase.


:

Pssm-ID: 463368 [Multi-domain]  Cd Length: 316  Bit Score: 328.47  E-value: 3.98e-110
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2462558938 132 WVKLNLGTVGFYRTQYSSAMLESLLPGIRDLSLPPVDRLGLQNDLFSLARAGIISTVEVLKVMEAFVNEPNYTVWSDLSC 211
Cdd:pfam11838   1 WVKLNADDTGYYRVNYDPESLAALLEQLLSKVLSPLDRAGLIDDAFALARAGELSTSDALDLVLAYLNETDYVVWSAALS 80
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2462558938 212 NLGILSTLLSHTDFYEEIQEFVKDVFSPIGERLGWDPKPGEGHLDALLRGLVLGKLGKAGHKATLEEARRRFKDHVEGKQ 291
Cdd:pfam11838  81 QLSTLRSLLSADPEYEALKAFLRKLLSPLAEKLGWEAPPGESHLDRQLRALLLSAACSAGDPECVAEAKKLFDAWLDGDD 160
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2462558938 292 ILSADLRSPVYLTVLKHGDGTTLDIMLKLHKQADMQEEKNRIERVLGATLLPDLIQKVLTFAL-SEEVRPQDTVSVIGGV 370
Cdd:pfam11838 161 AIPPDLRWAVYCAAVANGGEAEWDALLERYRDTTSPSEKERALRALAATPDPELLQRALELALdSDEVRNQDLRAVIAGL 240
                         250       260       270       280       290       300       310
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*
gi 2462558938 371 AGgSKHGRKAAWKFIKDNWEELYNRYQGGFLISRLIKLSVEGFAVDKMAGEVKAFFQSHPAPSAERTIQQCCENI 445
Cdd:pfam11838 241 AS-NPAGRDLAWDFVKENWDALVKRLGGGSSLGRLVKGLTPSFSTEEELDEVEAFFADKDTPGLRRALAQALETI 314
PepN super family cl43098
Aminopeptidase N, contains DUF3458 domain [Amino acid transport and metabolism];
1-214 7.92e-18

Aminopeptidase N, contains DUF3458 domain [Amino acid transport and metabolism];


The actual alignment was detected with superfamily member COG0308:

Pssm-ID: 440077 [Multi-domain]  Cd Length: 609  Bit Score: 86.24  E-value: 7.92e-18
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2462558938   1 MLHDYIGDKDFKKGMNMYLTKFQQKNAATEDLWESLENASGKPIAAVMNTWTKQMGFPLIYVEAEQVEDDRL-LRLSQKK 79
Cdd:COG0308   389 MLRTLLGDEAFRAGLRLYFARHAGGNATTEDFLAALEEASGRDLSAFFDQWLYQAGLPTLEVEYEYDADGKVtLTLRQTP 468
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2462558938  80 FcaggsyvgeDCPQWMVPITISTsEDPNQAKLKILMDKPEMNVVlknVKPDqWVKLNLgtvgfyrtqyssamLESLLPGI 159
Cdd:COG0308   469 P---------RPHPFHIPLEVGL-LGGKLTARTVLLDGEQTELV---AKPD-PVLLLR--------------LDDELAFL 520
                         170       180       190       200       210
                  ....*....|....*....|....*....|....*....|....*....|....*
gi 2462558938 160 RDLSLPPVDRLGLQNDLFSLARAGIISTVEVLKvmeafvnEPNYTVWSDLSCNLG 214
Cdd:COG0308   521 LAHDSDPFNRWEALQALWRDGEADYLDALRALA-------DTDPAVRAEALALLG 568
 
Name Accession Description Interval E-value
ERAP1_C pfam11838
ERAP1-like C-terminal domain; This large domain is composed of 16 alpha helices organized as 8 ...
132-445 3.98e-110

ERAP1-like C-terminal domain; This large domain is composed of 16 alpha helices organized as 8 HEAT-like repeats. This domain forms a concave face that faces towards the active site of the peptidase.


Pssm-ID: 463368 [Multi-domain]  Cd Length: 316  Bit Score: 328.47  E-value: 3.98e-110
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2462558938 132 WVKLNLGTVGFYRTQYSSAMLESLLPGIRDLSLPPVDRLGLQNDLFSLARAGIISTVEVLKVMEAFVNEPNYTVWSDLSC 211
Cdd:pfam11838   1 WVKLNADDTGYYRVNYDPESLAALLEQLLSKVLSPLDRAGLIDDAFALARAGELSTSDALDLVLAYLNETDYVVWSAALS 80
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2462558938 212 NLGILSTLLSHTDFYEEIQEFVKDVFSPIGERLGWDPKPGEGHLDALLRGLVLGKLGKAGHKATLEEARRRFKDHVEGKQ 291
Cdd:pfam11838  81 QLSTLRSLLSADPEYEALKAFLRKLLSPLAEKLGWEAPPGESHLDRQLRALLLSAACSAGDPECVAEAKKLFDAWLDGDD 160
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2462558938 292 ILSADLRSPVYLTVLKHGDGTTLDIMLKLHKQADMQEEKNRIERVLGATLLPDLIQKVLTFAL-SEEVRPQDTVSVIGGV 370
Cdd:pfam11838 161 AIPPDLRWAVYCAAVANGGEAEWDALLERYRDTTSPSEKERALRALAATPDPELLQRALELALdSDEVRNQDLRAVIAGL 240
                         250       260       270       280       290       300       310
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*
gi 2462558938 371 AGgSKHGRKAAWKFIKDNWEELYNRYQGGFLISRLIKLSVEGFAVDKMAGEVKAFFQSHPAPSAERTIQQCCENI 445
Cdd:pfam11838 241 AS-NPAGRDLAWDFVKENWDALVKRLGGGSSLGRLVKGLTPSFSTEEELDEVEAFFADKDTPGLRRALAQALETI 314
PepN COG0308
Aminopeptidase N, contains DUF3458 domain [Amino acid transport and metabolism];
1-214 7.92e-18

Aminopeptidase N, contains DUF3458 domain [Amino acid transport and metabolism];


Pssm-ID: 440077 [Multi-domain]  Cd Length: 609  Bit Score: 86.24  E-value: 7.92e-18
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2462558938   1 MLHDYIGDKDFKKGMNMYLTKFQQKNAATEDLWESLENASGKPIAAVMNTWTKQMGFPLIYVEAEQVEDDRL-LRLSQKK 79
Cdd:COG0308   389 MLRTLLGDEAFRAGLRLYFARHAGGNATTEDFLAALEEASGRDLSAFFDQWLYQAGLPTLEVEYEYDADGKVtLTLRQTP 468
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2462558938  80 FcaggsyvgeDCPQWMVPITISTsEDPNQAKLKILMDKPEMNVVlknVKPDqWVKLNLgtvgfyrtqyssamLESLLPGI 159
Cdd:COG0308   469 P---------RPHPFHIPLEVGL-LGGKLTARTVLLDGEQTELV---AKPD-PVLLLR--------------LDDELAFL 520
                         170       180       190       200       210
                  ....*....|....*....|....*....|....*....|....*....|....*
gi 2462558938 160 RDLSLPPVDRLGLQNDLFSLARAGIISTVEVLKvmeafvnEPNYTVWSDLSCNLG 214
Cdd:COG0308   521 LAHDSDPFNRWEALQALWRDGEADYLDALRALA-------DTDPAVRAEALALLG 568
M1_APN-Q_like cd09601
Peptidase M1 aminopeptidase N catalytic domain family which includes aminopeptidase N (APN), ...
1-53 6.68e-17

Peptidase M1 aminopeptidase N catalytic domain family which includes aminopeptidase N (APN), aminopeptidase Q (APQ), tricorn interacting factor F3, and endoplasmic reticulum aminopeptidase 1 (ERAP1); This M1 peptidase family includes eukaryotic and bacterial members: the catalytic domains of 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, 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.


Pssm-ID: 341064 [Multi-domain]  Cd Length: 442  Bit Score: 82.63  E-value: 6.68e-17
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....*..
gi 2462558938   1 MLHDYIGDKDFKKGMNMYLTKFQQKNAATEDLWESLENASG----KPIAAVMNTWTK 53
Cdd:cd09601   386 MLENFLGEEVFRKGLRKYLKKHAYGNATTDDLWEALQEASGeskpLDVKEIMDSWTL 442
Peptidase_M1 pfam01433
Peptidase family M1 domain; Members of this family are aminopeptidases. The members differ ...
1-51 9.09e-16

Peptidase family M1 domain; 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.


Pssm-ID: 426262 [Multi-domain]  Cd Length: 219  Bit Score: 76.17  E-value: 9.09e-16
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|..
gi 2462558938   1 MLHDYIGDKDFKKGMNMYLTKFQQKNAATEDLWESLENASG-KPIAAVMNTW 51
Cdd:pfam01433 168 MLETLLGEEVFQKGLRSYLKKFQYGNATTEDLWDALSEASGpLDVDSFMDTW 219
pepN PRK14015
aminopeptidase N; Provisional
1-82 1.07e-03

aminopeptidase N; Provisional


Pssm-ID: 237585 [Multi-domain]  Cd Length: 875  Bit Score: 41.65  E-value: 1.07e-03
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2462558938   1 MLHDYIGDKDFKKGMNMYLTKF--QqknAAT-EDLWESLENASGKPIAAVMNtWTKQMGFPLIYVEAEQVEDDRLLRLSQ 77
Cdd:PRK14015  395 MLHTLLGEEGFRKGMDLYFERHdgQ---AVTcEDFVAAMEDASGRDLSQFRR-WYSQAGTPRVTVSDEYDAAAGTYTLTL 470

                  ....*
gi 2462558938  78 KKFCA 82
Cdd:PRK14015  471 SQSTP 475
 
Name Accession Description Interval E-value
ERAP1_C pfam11838
ERAP1-like C-terminal domain; This large domain is composed of 16 alpha helices organized as 8 ...
132-445 3.98e-110

ERAP1-like C-terminal domain; This large domain is composed of 16 alpha helices organized as 8 HEAT-like repeats. This domain forms a concave face that faces towards the active site of the peptidase.


Pssm-ID: 463368 [Multi-domain]  Cd Length: 316  Bit Score: 328.47  E-value: 3.98e-110
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2462558938 132 WVKLNLGTVGFYRTQYSSAMLESLLPGIRDLSLPPVDRLGLQNDLFSLARAGIISTVEVLKVMEAFVNEPNYTVWSDLSC 211
Cdd:pfam11838   1 WVKLNADDTGYYRVNYDPESLAALLEQLLSKVLSPLDRAGLIDDAFALARAGELSTSDALDLVLAYLNETDYVVWSAALS 80
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2462558938 212 NLGILSTLLSHTDFYEEIQEFVKDVFSPIGERLGWDPKPGEGHLDALLRGLVLGKLGKAGHKATLEEARRRFKDHVEGKQ 291
Cdd:pfam11838  81 QLSTLRSLLSADPEYEALKAFLRKLLSPLAEKLGWEAPPGESHLDRQLRALLLSAACSAGDPECVAEAKKLFDAWLDGDD 160
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2462558938 292 ILSADLRSPVYLTVLKHGDGTTLDIMLKLHKQADMQEEKNRIERVLGATLLPDLIQKVLTFAL-SEEVRPQDTVSVIGGV 370
Cdd:pfam11838 161 AIPPDLRWAVYCAAVANGGEAEWDALLERYRDTTSPSEKERALRALAATPDPELLQRALELALdSDEVRNQDLRAVIAGL 240
                         250       260       270       280       290       300       310
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*
gi 2462558938 371 AGgSKHGRKAAWKFIKDNWEELYNRYQGGFLISRLIKLSVEGFAVDKMAGEVKAFFQSHPAPSAERTIQQCCENI 445
Cdd:pfam11838 241 AS-NPAGRDLAWDFVKENWDALVKRLGGGSSLGRLVKGLTPSFSTEEELDEVEAFFADKDTPGLRRALAQALETI 314
PepN COG0308
Aminopeptidase N, contains DUF3458 domain [Amino acid transport and metabolism];
1-214 7.92e-18

Aminopeptidase N, contains DUF3458 domain [Amino acid transport and metabolism];


Pssm-ID: 440077 [Multi-domain]  Cd Length: 609  Bit Score: 86.24  E-value: 7.92e-18
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2462558938   1 MLHDYIGDKDFKKGMNMYLTKFQQKNAATEDLWESLENASGKPIAAVMNTWTKQMGFPLIYVEAEQVEDDRL-LRLSQKK 79
Cdd:COG0308   389 MLRTLLGDEAFRAGLRLYFARHAGGNATTEDFLAALEEASGRDLSAFFDQWLYQAGLPTLEVEYEYDADGKVtLTLRQTP 468
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2462558938  80 FcaggsyvgeDCPQWMVPITISTsEDPNQAKLKILMDKPEMNVVlknVKPDqWVKLNLgtvgfyrtqyssamLESLLPGI 159
Cdd:COG0308   469 P---------RPHPFHIPLEVGL-LGGKLTARTVLLDGEQTELV---AKPD-PVLLLR--------------LDDELAFL 520
                         170       180       190       200       210
                  ....*....|....*....|....*....|....*....|....*....|....*
gi 2462558938 160 RDLSLPPVDRLGLQNDLFSLARAGIISTVEVLKvmeafvnEPNYTVWSDLSCNLG 214
Cdd:COG0308   521 LAHDSDPFNRWEALQALWRDGEADYLDALRALA-------DTDPAVRAEALALLG 568
M1_APN-Q_like cd09601
Peptidase M1 aminopeptidase N catalytic domain family which includes aminopeptidase N (APN), ...
1-53 6.68e-17

Peptidase M1 aminopeptidase N catalytic domain family which includes aminopeptidase N (APN), aminopeptidase Q (APQ), tricorn interacting factor F3, and endoplasmic reticulum aminopeptidase 1 (ERAP1); This M1 peptidase family includes eukaryotic and bacterial members: the catalytic domains of 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, 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.


Pssm-ID: 341064 [Multi-domain]  Cd Length: 442  Bit Score: 82.63  E-value: 6.68e-17
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....*..
gi 2462558938   1 MLHDYIGDKDFKKGMNMYLTKFQQKNAATEDLWESLENASG----KPIAAVMNTWTK 53
Cdd:cd09601   386 MLENFLGEEVFRKGLRKYLKKHAYGNATTDDLWEALQEASGeskpLDVKEIMDSWTL 442
Peptidase_M1 pfam01433
Peptidase family M1 domain; Members of this family are aminopeptidases. The members differ ...
1-51 9.09e-16

Peptidase family M1 domain; 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.


Pssm-ID: 426262 [Multi-domain]  Cd Length: 219  Bit Score: 76.17  E-value: 9.09e-16
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|..
gi 2462558938   1 MLHDYIGDKDFKKGMNMYLTKFQQKNAATEDLWESLENASG-KPIAAVMNTW 51
Cdd:pfam01433 168 MLETLLGEEVFQKGLRSYLKKFQYGNATTEDLWDALSEASGpLDVDSFMDTW 219
M1_APN_like cd09603
Peptidase M1 family similar to aminopeptidase N catalytic domain; This family contains mostly ...
1-51 3.01e-08

Peptidase M1 family similar to aminopeptidase N catalytic domain; This family contains mostly bacterial and some archaeal M1 peptidases with smilarity to the catalytic domain of aminopeptidase N (APN; CD13; alanyl aminopeptidase; EC 3.4.11.2), a type II integral membrane protease belonging to the M1 gluzincin family. APN 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.


Pssm-ID: 341066 [Multi-domain]  Cd Length: 410  Bit Score: 55.67  E-value: 3.01e-08
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|.
gi 2462558938   1 MLHDYIGDKDFKKGMNMYLTKFQQKNAATEDLWESLENASGKPIAAVMNTW 51
Cdd:cd09603   358 MLRNLLGDEAFFAALRAYLARYAHGNVTTEDFIAAAEEVSGRDLTWFFDQW 408
M1_APN cd09600
Peptidase M1 family, including aminopeptidase N catalytic domain; This model represents the ...
1-52 3.16e-05

Peptidase M1 family, including aminopeptidase N catalytic domain; This model represents the catalytic domain of 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 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.


Pssm-ID: 341063 [Multi-domain]  Cd Length: 434  Bit Score: 46.35  E-value: 3.16e-05
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|..
gi 2462558938   1 MLHDYIGDKDFKKGMNMYLTKFQQKNAATEDLWESLENASGKPIAAVMNTWT 52
Cdd:cd09600   383 MLHTLLGEEGFRKGMDLYFERHDGQAVTCEDFVAAMEDASGRDLSQFKRWYS 434
M1_APN_like cd09604
Peptidase M1 family similar to aminopeptidase N catalytic domain; This family contains ...
1-51 1.40e-04

Peptidase M1 family similar to aminopeptidase N catalytic domain; This family contains bacterial M1 peptidases with smilarity to the catalytic domain of aminopeptidase N (APN; CD13; alanyl aminopeptidase; EC 3.4.11.2), a type II integral membrane protease belonging to the M1 gluzincin family. APN 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.


Pssm-ID: 341067 [Multi-domain]  Cd Length: 440  Bit Score: 44.19  E-value: 1.40e-04
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|.
gi 2462558938   1 MLHDYIGDKDFKKGMNMYLTKFQQKNAATEDLWESLENASGKPIAAVMNTW 51
Cdd:cd09604   389 ELREELGDEAFDKALREYYRRYKFKHPTPEDFFRTAEEVSGKDLDWFFRGW 439
M1 cd09595
Peptidase M1 family includes the catalytic domains of aminopeptidase N and leukotriene A4 ...
1-37 2.15e-04

Peptidase M1 family includes the catalytic domains of aminopeptidase N and leukotriene A4 hydrolase; The model represents the catalytic domains of M1 peptidase family members including 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 upon activation during catalysis. APN 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.


Pssm-ID: 341058 [Multi-domain]  Cd Length: 413  Bit Score: 43.59  E-value: 2.15e-04
                          10        20        30
                  ....*....|....*....|....*....|....*..
gi 2462558938   1 MLHDYIGDKDFKKGMNMYLTKFQQKNAATEDLWESLE 37
Cdd:cd09595   376 MLEELVGEEAFDKGVQAYFNRHKFKNATTDDFIDALE 412
pepN PRK14015
aminopeptidase N; Provisional
1-82 1.07e-03

aminopeptidase N; Provisional


Pssm-ID: 237585 [Multi-domain]  Cd Length: 875  Bit Score: 41.65  E-value: 1.07e-03
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2462558938   1 MLHDYIGDKDFKKGMNMYLTKF--QqknAAT-EDLWESLENASGKPIAAVMNtWTKQMGFPLIYVEAEQVEDDRLLRLSQ 77
Cdd:PRK14015  395 MLHTLLGEEGFRKGMDLYFERHdgQ---AVTcEDFVAAMEDASGRDLSQFRR-WYSQAGTPRVTVSDEYDAAAGTYTLTL 470

                  ....*
gi 2462558938  78 KKFCA 82
Cdd:PRK14015  471 SQSTP 475
 
Blast search parameters
Data Source: Precalculated data, version = cdd.v.3.21
Preset Options:Database: CDSEARCH/cdd   Low complexity filter: no  Composition Based Adjustment: yes   E-value threshold: 0.01

References:

  • Wang J et al. (2023), "The conserved domain database in 2023", Nucleic Acids Res.51(D)384-8.
  • Lu S et al. (2020), "The conserved domain database in 2020", Nucleic Acids Res.48(D)265-8.
  • Marchler-Bauer A et al. (2017), "CDD/SPARCLE: functional classification of proteins via subfamily domain architectures.", Nucleic Acids Res.45(D)200-3.
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