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Conserved domains on  [gi|2191078338|ref|WP_237738811|]
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alpha-2-macroglobulin [Alcanivorax hongdengensis]

Protein Classification

alpha-2-macroglobulin family protein( domain architecture ID 11457182)

immunoglobulin (Ig)-like domain-containing alpha-2-macroglobulin family protein may be a broad-spectrum protease inhibitor, similar to alpha-2-macroglobulin from Escherichia coli (A2MG, YfhM) and similar proteins from proteobacteria

CATH:  2.60.40.10
Gene Ontology:  GO:0004866|GO:0010951
SCOP:  2000051

Graphical summary

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List of domain hits

Name Accession Description Interval E-value
YfaS COG2373
Uncharacterized conserved protein YfaS, alpha-2-macroglobulin family [General function ...
495-1841 0e+00

Uncharacterized conserved protein YfaS, alpha-2-macroglobulin family [General function prediction only];


:

Pssm-ID: 441940 [Multi-domain]  Cd Length: 1605  Bit Score: 1248.82  E-value: 0e+00
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2191078338  495 YQYNDLASSTRAFLASNLGLIAKQGqNNQLYVMASSLDGNQPLKGVALTAYNYQLQRIGEGHTDKDGMATLTLDG----- 569
Cdd:COG2373    250 YSYNGESRATQWFLVSDLGLTAKRG-DDGLLVFVTSLSTGKPVAGAEVELYDRNGQVLATATTDADGLARFPAGDrgegg 328
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2191078338  570 -TAYYLQASRDKDVGYLKLARNRALPTNQFNTGGEQVRDGLKGFFYGERDVWRPGDDIHLTFILQDKQHRIPDDHPLTLD 648
Cdd:COG2373    329 rAPALLVARKGGDFAFLDLDDGPALDLSDFDVGGRAPPGGLDAFLFTDRGIYRPGETVHLKALLRDADGKAPAGLPLTLE 408
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2191078338  649 WFDPRGNKVKSYTLDKPVGNFYAFTLHTDEQAPTGNWRAVARLG--QRYFDTPVRVEAIKPNRLKIELGLP-EWLHANQG 725
Cdd:COG2373    409 LTDPDGKEVRRQTLTLNEFGGYSFSFPLPEDAPTGTWRLELYVDpkPALGSKSFRVEEFKPPRFKVDLTLDkEPLKPGDP 488
                          250       260       270       280       290       300       310       320
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2191078338  726 EPVTLFSQWLNGATASRLKADVKVRVSGRATTFDGYQAYHFDDPTRALKSEPFTAFDGQLDASGNASFPLQVP-VEQAPG 804
Cdd:COG2373    489 VTVTVDARYLFGAPAAGLKVEGEVTLRPARTAFPGYPGYRFGDPDEEFEPEELDLGEGTLDADGKASLSLPLPdAPDAPG 568
                          330       340       350       360       370       380       390       400
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2191078338  805 MVRAVLTTRVFENSGDYSTQVRSVPVYPYHHWVGMKVPRGSGWgdslSRDEKHGIDLVSLDSDGKPDPDRALDITVYRID 884
Cdd:COG2373    569 PLRATVEASVFESGGRPVTRSATVPVHPADFYVGIRLPLFDGD----PEGAPATFEVVAVDPDGKPVAGKGLKVELYREE 644
                          410       420       430       440       450       460       470       480
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2191078338  885 WRWWWDRSDDKLTNFISDPNTKEVTRAHVTTDQDGHAlwQLDGADYDWGRHLIRVCEQDGQHCTAQTVYLGWSwdqAAGS 964
Cdd:COG2373    645 WRYVWYKSDDGGWRYESQEKEEPVAEGTLTTGADGPA--SLSLTPVEWGRYRLEVKDPDGGLATSVRFYAGGN---ASWG 719
                          490       500       510       520       530       540       550       560
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2191078338  965 QDAATRLSLSADKPRYQVGDTAHIELPSVASGRLLVSLEtGSRVLDHYWLPATGQAQTLDIPVTAEMAPNVYVNVALLQP 1044
Cdd:COG2373    720 AERPDRLELSLDKESYKPGETAKLLIQSPFAGRALVTVE-RDGVLETQWVDVKGGGTTVEIPVTEDWAPNAYVSATLVRP 798
                          570       580       590       600       610       620       630       640
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2191078338 1045 H-QRDNDRPIRLYGVVPLLVDDPATRLTPQIKAPEQVKPGQTFSVAVSEK--QGHAMTYTLAVVDEGLLGLTNFRTPDPH 1121
Cdd:COG2373    799 GdSTANDMPARAYGVAPLPVDPPARRLKVELTAPEKLRPGETLTVTVKVKgaAGKAAEVTLAAVDEGILNLTGYKTPDPL 878
                          650       660       670       680       690       700       710       720
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2191078338 1122 DAFYKREALGVLTWDLYDMVVGAYGAeLDQLLALGGSDALEDG--HEKQRRRFPPVVKFLGPFQLDDNETAHHSITLPAY 1199
Cdd:COG2373    879 DFFYGKRALGVETRDLYGRLIGAFGG-AAGALRSGGDGALGRGgnPKPPRKRFKPVALFSGPVKTDADGKATVSFDLPDF 957
                          730       740       750       760       770       780       790       800
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2191078338 1200 MGQVRVMVVAGTDSAYGKASQDVTVTQPLTLLSTLPRVMGPGESVALPVTVFVTDDNLKTVNLSVKADDALFTVEQGSAT 1279
Cdd:COG2373    958 NGTLRVMAVAWSDDRFGSAEATVTVRKPLVVRPSLPRFLAPGDRFELPVDVFNLTGKAGTVTVTLEASGGLTLEGEATQT 1037
                          810       820       830       840       850       860       870       880
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2191078338 1280 LHFDGSGDQIAMLRLHAnKQVGKGQVTVTARAGDQQATETVTLPVRAANPPTTREQRHVLQAGETWAGQFMPHG--LPGT 1357
Cdd:COG2373   1038 VTLAAGGRATVRFPLKA-PDAGDAKVTVTATGGGESDAREVELPVRPANPLVTRATSGVLAPGESWTLPLDLPGglRPGT 1116
                          890       900       910       920       930       940       950       960
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2191078338 1358 NAGTLTVSTLPAMGLERRLNYLLNYPHGCIEQTTSAVLPQLYLPQLV---NLSDEQQQTLQKNVEAGIARLRHFQLTDGG 1434
Cdd:COG2373   1117 GSLTLSLSSSPPLDLAGLLRYLLRYPYGCTEQTTSRALPLLYLSDLAealGLKGDKDAELRARIQAAIARLLSMQNSDGG 1196
                          970       980       990      1000      1010      1020      1030      1040
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2191078338 1435 FSYWPGLASASDWGTSYAGHFLLEARRLGYAVPAQMLEDWQRYQIRR----TQTLGQRPWEWSAEAYRLYTLALAGKPQV 1510
Cdd:COG2373   1197 FGLWPGGSESDPWLTAYATDFLLEAREAGYAVPDDALDRALDYLRNYlrnpWEIEYDDAYRLAVRAYALYVLARAGKADL 1276
                         1050      1060      1070      1080      1090      1100      1110      1120
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2191078338 1511 GAMNRLRERlnladkdYGRWASYhNGRWLLAAAYQQMGLSPVAAELIA-GESAVV---PYQAPGYTYGSSLRDQAIRL-T 1585
Cdd:COG2373   1277 GDLRYLYDR-------RKDALSP-LAKAQLAAALALLGDKARAEELLAaALARLRetgARDYWYGDYGSPLRDQALALaL 1348
                         1130      1140      1150      1160      1170      1180      1190      1200
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2191078338 1586 VKEGAGDDNGAWELADDVAASLASERWYSTQSTAWALMAMARYAGGKEGDEGYRFAWR-DGKQswQDLQARSPVYQQALQ 1664
Cdd:COG2373   1349 LAELGPDAPLAPKLARWLAKALKSGRWLSTQETAWALLALAAYARAAGASPDFTATLTlDGKT--LPLTGRGPLARVTLP 1426
                         1210      1220      1230      1240      1250      1260      1270      1280
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2191078338 1665 GDDY--RGVAVRNDSERKLFVTLSNTGTPPPGQEQPVSDGLRLNARFSDDNGQAVNPTTLTQGTDFHARVVVTNTSGReL 1742
Cdd:COG2373   1427 AAELlaGPLTITNTGDGPLYYTLTLSGYPAEGPPPAASNGLEIERRYYDLDGKPIDPASLKQGDLVVVRLTVTAPSGR-V 1505
                         1290      1300      1310      1320      1330      1340      1350      1360
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2191078338 1743 KNLALTQILPSGWQITSSRLSGSAEQQD-DKDQPPVTYQDLRDDRVLSYFDLPAGKSISLSVDLNASFAGHYYLPAWTVE 1821
Cdd:COG2373   1506 ENVAVVDPLPAGFEIENPRLATSGDLGDwLGDSWQPDHQEFRDDRVVAAFDLDPAGTYTFAYLVRAVTPGTFVLPPAQAE 1585
                         1370      1380
                   ....*....|....*....|
gi 2191078338 1822 AMYDGSKQARSAGQWVTVKP 1841
Cdd:COG2373   1586 DMYRPEVRARSAGGRVTVVA 1605
 
Name Accession Description Interval E-value
YfaS COG2373
Uncharacterized conserved protein YfaS, alpha-2-macroglobulin family [General function ...
495-1841 0e+00

Uncharacterized conserved protein YfaS, alpha-2-macroglobulin family [General function prediction only];


Pssm-ID: 441940 [Multi-domain]  Cd Length: 1605  Bit Score: 1248.82  E-value: 0e+00
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2191078338  495 YQYNDLASSTRAFLASNLGLIAKQGqNNQLYVMASSLDGNQPLKGVALTAYNYQLQRIGEGHTDKDGMATLTLDG----- 569
Cdd:COG2373    250 YSYNGESRATQWFLVSDLGLTAKRG-DDGLLVFVTSLSTGKPVAGAEVELYDRNGQVLATATTDADGLARFPAGDrgegg 328
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2191078338  570 -TAYYLQASRDKDVGYLKLARNRALPTNQFNTGGEQVRDGLKGFFYGERDVWRPGDDIHLTFILQDKQHRIPDDHPLTLD 648
Cdd:COG2373    329 rAPALLVARKGGDFAFLDLDDGPALDLSDFDVGGRAPPGGLDAFLFTDRGIYRPGETVHLKALLRDADGKAPAGLPLTLE 408
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2191078338  649 WFDPRGNKVKSYTLDKPVGNFYAFTLHTDEQAPTGNWRAVARLG--QRYFDTPVRVEAIKPNRLKIELGLP-EWLHANQG 725
Cdd:COG2373    409 LTDPDGKEVRRQTLTLNEFGGYSFSFPLPEDAPTGTWRLELYVDpkPALGSKSFRVEEFKPPRFKVDLTLDkEPLKPGDP 488
                          250       260       270       280       290       300       310       320
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2191078338  726 EPVTLFSQWLNGATASRLKADVKVRVSGRATTFDGYQAYHFDDPTRALKSEPFTAFDGQLDASGNASFPLQVP-VEQAPG 804
Cdd:COG2373    489 VTVTVDARYLFGAPAAGLKVEGEVTLRPARTAFPGYPGYRFGDPDEEFEPEELDLGEGTLDADGKASLSLPLPdAPDAPG 568
                          330       340       350       360       370       380       390       400
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2191078338  805 MVRAVLTTRVFENSGDYSTQVRSVPVYPYHHWVGMKVPRGSGWgdslSRDEKHGIDLVSLDSDGKPDPDRALDITVYRID 884
Cdd:COG2373    569 PLRATVEASVFESGGRPVTRSATVPVHPADFYVGIRLPLFDGD----PEGAPATFEVVAVDPDGKPVAGKGLKVELYREE 644
                          410       420       430       440       450       460       470       480
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2191078338  885 WRWWWDRSDDKLTNFISDPNTKEVTRAHVTTDQDGHAlwQLDGADYDWGRHLIRVCEQDGQHCTAQTVYLGWSwdqAAGS 964
Cdd:COG2373    645 WRYVWYKSDDGGWRYESQEKEEPVAEGTLTTGADGPA--SLSLTPVEWGRYRLEVKDPDGGLATSVRFYAGGN---ASWG 719
                          490       500       510       520       530       540       550       560
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2191078338  965 QDAATRLSLSADKPRYQVGDTAHIELPSVASGRLLVSLEtGSRVLDHYWLPATGQAQTLDIPVTAEMAPNVYVNVALLQP 1044
Cdd:COG2373    720 AERPDRLELSLDKESYKPGETAKLLIQSPFAGRALVTVE-RDGVLETQWVDVKGGGTTVEIPVTEDWAPNAYVSATLVRP 798
                          570       580       590       600       610       620       630       640
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2191078338 1045 H-QRDNDRPIRLYGVVPLLVDDPATRLTPQIKAPEQVKPGQTFSVAVSEK--QGHAMTYTLAVVDEGLLGLTNFRTPDPH 1121
Cdd:COG2373    799 GdSTANDMPARAYGVAPLPVDPPARRLKVELTAPEKLRPGETLTVTVKVKgaAGKAAEVTLAAVDEGILNLTGYKTPDPL 878
                          650       660       670       680       690       700       710       720
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2191078338 1122 DAFYKREALGVLTWDLYDMVVGAYGAeLDQLLALGGSDALEDG--HEKQRRRFPPVVKFLGPFQLDDNETAHHSITLPAY 1199
Cdd:COG2373    879 DFFYGKRALGVETRDLYGRLIGAFGG-AAGALRSGGDGALGRGgnPKPPRKRFKPVALFSGPVKTDADGKATVSFDLPDF 957
                          730       740       750       760       770       780       790       800
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2191078338 1200 MGQVRVMVVAGTDSAYGKASQDVTVTQPLTLLSTLPRVMGPGESVALPVTVFVTDDNLKTVNLSVKADDALFTVEQGSAT 1279
Cdd:COG2373    958 NGTLRVMAVAWSDDRFGSAEATVTVRKPLVVRPSLPRFLAPGDRFELPVDVFNLTGKAGTVTVTLEASGGLTLEGEATQT 1037
                          810       820       830       840       850       860       870       880
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2191078338 1280 LHFDGSGDQIAMLRLHAnKQVGKGQVTVTARAGDQQATETVTLPVRAANPPTTREQRHVLQAGETWAGQFMPHG--LPGT 1357
Cdd:COG2373   1038 VTLAAGGRATVRFPLKA-PDAGDAKVTVTATGGGESDAREVELPVRPANPLVTRATSGVLAPGESWTLPLDLPGglRPGT 1116
                          890       900       910       920       930       940       950       960
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2191078338 1358 NAGTLTVSTLPAMGLERRLNYLLNYPHGCIEQTTSAVLPQLYLPQLV---NLSDEQQQTLQKNVEAGIARLRHFQLTDGG 1434
Cdd:COG2373   1117 GSLTLSLSSSPPLDLAGLLRYLLRYPYGCTEQTTSRALPLLYLSDLAealGLKGDKDAELRARIQAAIARLLSMQNSDGG 1196
                          970       980       990      1000      1010      1020      1030      1040
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2191078338 1435 FSYWPGLASASDWGTSYAGHFLLEARRLGYAVPAQMLEDWQRYQIRR----TQTLGQRPWEWSAEAYRLYTLALAGKPQV 1510
Cdd:COG2373   1197 FGLWPGGSESDPWLTAYATDFLLEAREAGYAVPDDALDRALDYLRNYlrnpWEIEYDDAYRLAVRAYALYVLARAGKADL 1276
                         1050      1060      1070      1080      1090      1100      1110      1120
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2191078338 1511 GAMNRLRERlnladkdYGRWASYhNGRWLLAAAYQQMGLSPVAAELIA-GESAVV---PYQAPGYTYGSSLRDQAIRL-T 1585
Cdd:COG2373   1277 GDLRYLYDR-------RKDALSP-LAKAQLAAALALLGDKARAEELLAaALARLRetgARDYWYGDYGSPLRDQALALaL 1348
                         1130      1140      1150      1160      1170      1180      1190      1200
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2191078338 1586 VKEGAGDDNGAWELADDVAASLASERWYSTQSTAWALMAMARYAGGKEGDEGYRFAWR-DGKQswQDLQARSPVYQQALQ 1664
Cdd:COG2373   1349 LAELGPDAPLAPKLARWLAKALKSGRWLSTQETAWALLALAAYARAAGASPDFTATLTlDGKT--LPLTGRGPLARVTLP 1426
                         1210      1220      1230      1240      1250      1260      1270      1280
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2191078338 1665 GDDY--RGVAVRNDSERKLFVTLSNTGTPPPGQEQPVSDGLRLNARFSDDNGQAVNPTTLTQGTDFHARVVVTNTSGReL 1742
Cdd:COG2373   1427 AAELlaGPLTITNTGDGPLYYTLTLSGYPAEGPPPAASNGLEIERRYYDLDGKPIDPASLKQGDLVVVRLTVTAPSGR-V 1505
                         1290      1300      1310      1320      1330      1340      1350      1360
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2191078338 1743 KNLALTQILPSGWQITSSRLSGSAEQQD-DKDQPPVTYQDLRDDRVLSYFDLPAGKSISLSVDLNASFAGHYYLPAWTVE 1821
Cdd:COG2373   1506 ENVAVVDPLPAGFEIENPRLATSGDLGDwLGDSWQPDHQEFRDDRVVAAFDLDPAGTYTFAYLVRAVTPGTFVLPPAQAE 1585
                         1370      1380
                   ....*....|....*....|
gi 2191078338 1822 AMYDGSKQARSAGQWVTVKP 1841
Cdd:COG2373   1586 DMYRPEVRARSAGGRVTVVA 1605
A2M_like cd02891
Proteins similar to alpha2-macroglobulin (alpha (2)-M). Alpha (2)-M is a major carrier ...
1372-1628 1.08e-41

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.


Pssm-ID: 239221 [Multi-domain]  Cd Length: 282  Bit Score: 155.24  E-value: 1.08e-41
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2191078338 1372 LERRLNYLLNYPHGCIEQTTSAVLPQLYLPQLVN----LSDEQQQTLQKNVEAGIARLRHFQLTDGGFSYWPGLASASDW 1447
Cdd:cd02891      1 SLGNLDYLLRYPYGCGEQTMSRAAPNLYVLKYLDatgqLTPEIREKALEYIRKGYQRLLTYQRSDGSFSAWGNSDSGSTW 80
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2191078338 1448 GTSYAGHFLLEARR------------LGYAVPAQMLEDW---QRYQIRRTQTLGQRPwEWSAEAYRLYTLALAGK----P 1508
Cdd:cd02891     81 LTAYVVKFLSQARKyidvdenvlaraLGWLVPQQKEDGSfreLGPVIHREMKGGVDD-SVSLTAYVLIALAEAGKacdaS 159
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2191078338 1509 QVGAMNRLRERLNLADKDYgrwasyhnGRWLLAAAYQQMGLSPVAAEL--------IAGESAVVPYQAPGYTYGSSLRDQ 1580
Cdd:cd02891    160 IEKALAYLETQLDGLLDPY--------ALAILAYALALAGDSTRADEAlkklleaaREKGGTAHWSLSWPGDYGSSLRVE 231
                          250       260       270       280       290
                   ....*....|....*....|....*....|....*....|....*....|....*..
gi 2191078338 1581 AIRL----TVKEGAGDDngawelADDVAASLASER-----WYSTQSTAWALMAMARY 1628
Cdd:cd02891    232 ATAYallaLLKLGDLEE------AGPIAKWLAQQRnsgggFLSTQDTVVALQALAAY 282
A2M_BRD pfam07703
Alpha-2-macroglobulin bait region domain; Alpha-2-macroglobulins (A2Ms) are plasma proteins ...
971-1112 1.40e-28

Alpha-2-macroglobulin bait region domain; Alpha-2-macroglobulins (A2Ms) are plasma proteins that trap and inhibit a broad range of proteases and are major components of the eukaryotic innate immune system. However, A2M-like proteins were identified in pathogenically invasive bacteria and species that colonize higher eukaryotes. This domain is found in eukaryotic and bacterial proteins. In human A2Ms, this domain encompasses macroglobulin-like domain MG5 and 6 including bait region. In Salmonella enterica ser A2Ms, this domain encompasses MG7 and MG8 including the bait region. The Bait region is cleaved by proteases, followed by a large conformational change that blocks the target protease within a cage-like complex. This model of protease entrapment is recognized as the Venus flytrap mechanism.


Pssm-ID: 462235 [Multi-domain]  Cd Length: 139  Bit Score: 112.44  E-value: 1.40e-28
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2191078338  971 LSLSADKPRYQVGDTAHIELPSVASGRLLVSLETgSRVLDHYWLPATGQAQ---TLDIPVTAEMAPNVYVNVALLQPhqr 1047
Cdd:pfam07703    1 LHLSTDKTEYKPGETATVTVKSPFDGTVERDGFT-YLVLSKGQIVVVGRGGvttSFSLPVTAEMAPSARVVAYYVRV--- 76
                           90       100       110       120       130       140
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*.
gi 2191078338 1048 DNDRPIRLYGVVPLLVDDPATR-LTPQIKaPEQVKPGQTFSVAVSEKQGhaMTYTLAVVDEGLLGL 1112
Cdd:pfam07703   77 DLSKPEVVADSVWVDVDDTCENkLKVTLS-AEKYRPGSTVELKVKADPG--AYVALAAVDKGVLLL 139
 
Name Accession Description Interval E-value
YfaS COG2373
Uncharacterized conserved protein YfaS, alpha-2-macroglobulin family [General function ...
495-1841 0e+00

Uncharacterized conserved protein YfaS, alpha-2-macroglobulin family [General function prediction only];


Pssm-ID: 441940 [Multi-domain]  Cd Length: 1605  Bit Score: 1248.82  E-value: 0e+00
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2191078338  495 YQYNDLASSTRAFLASNLGLIAKQGqNNQLYVMASSLDGNQPLKGVALTAYNYQLQRIGEGHTDKDGMATLTLDG----- 569
Cdd:COG2373    250 YSYNGESRATQWFLVSDLGLTAKRG-DDGLLVFVTSLSTGKPVAGAEVELYDRNGQVLATATTDADGLARFPAGDrgegg 328
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2191078338  570 -TAYYLQASRDKDVGYLKLARNRALPTNQFNTGGEQVRDGLKGFFYGERDVWRPGDDIHLTFILQDKQHRIPDDHPLTLD 648
Cdd:COG2373    329 rAPALLVARKGGDFAFLDLDDGPALDLSDFDVGGRAPPGGLDAFLFTDRGIYRPGETVHLKALLRDADGKAPAGLPLTLE 408
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2191078338  649 WFDPRGNKVKSYTLDKPVGNFYAFTLHTDEQAPTGNWRAVARLG--QRYFDTPVRVEAIKPNRLKIELGLP-EWLHANQG 725
Cdd:COG2373    409 LTDPDGKEVRRQTLTLNEFGGYSFSFPLPEDAPTGTWRLELYVDpkPALGSKSFRVEEFKPPRFKVDLTLDkEPLKPGDP 488
                          250       260       270       280       290       300       310       320
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2191078338  726 EPVTLFSQWLNGATASRLKADVKVRVSGRATTFDGYQAYHFDDPTRALKSEPFTAFDGQLDASGNASFPLQVP-VEQAPG 804
Cdd:COG2373    489 VTVTVDARYLFGAPAAGLKVEGEVTLRPARTAFPGYPGYRFGDPDEEFEPEELDLGEGTLDADGKASLSLPLPdAPDAPG 568
                          330       340       350       360       370       380       390       400
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2191078338  805 MVRAVLTTRVFENSGDYSTQVRSVPVYPYHHWVGMKVPRGSGWgdslSRDEKHGIDLVSLDSDGKPDPDRALDITVYRID 884
Cdd:COG2373    569 PLRATVEASVFESGGRPVTRSATVPVHPADFYVGIRLPLFDGD----PEGAPATFEVVAVDPDGKPVAGKGLKVELYREE 644
                          410       420       430       440       450       460       470       480
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2191078338  885 WRWWWDRSDDKLTNFISDPNTKEVTRAHVTTDQDGHAlwQLDGADYDWGRHLIRVCEQDGQHCTAQTVYLGWSwdqAAGS 964
Cdd:COG2373    645 WRYVWYKSDDGGWRYESQEKEEPVAEGTLTTGADGPA--SLSLTPVEWGRYRLEVKDPDGGLATSVRFYAGGN---ASWG 719
                          490       500       510       520       530       540       550       560
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2191078338  965 QDAATRLSLSADKPRYQVGDTAHIELPSVASGRLLVSLEtGSRVLDHYWLPATGQAQTLDIPVTAEMAPNVYVNVALLQP 1044
Cdd:COG2373    720 AERPDRLELSLDKESYKPGETAKLLIQSPFAGRALVTVE-RDGVLETQWVDVKGGGTTVEIPVTEDWAPNAYVSATLVRP 798
                          570       580       590       600       610       620       630       640
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2191078338 1045 H-QRDNDRPIRLYGVVPLLVDDPATRLTPQIKAPEQVKPGQTFSVAVSEK--QGHAMTYTLAVVDEGLLGLTNFRTPDPH 1121
Cdd:COG2373    799 GdSTANDMPARAYGVAPLPVDPPARRLKVELTAPEKLRPGETLTVTVKVKgaAGKAAEVTLAAVDEGILNLTGYKTPDPL 878
                          650       660       670       680       690       700       710       720
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2191078338 1122 DAFYKREALGVLTWDLYDMVVGAYGAeLDQLLALGGSDALEDG--HEKQRRRFPPVVKFLGPFQLDDNETAHHSITLPAY 1199
Cdd:COG2373    879 DFFYGKRALGVETRDLYGRLIGAFGG-AAGALRSGGDGALGRGgnPKPPRKRFKPVALFSGPVKTDADGKATVSFDLPDF 957
                          730       740       750       760       770       780       790       800
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2191078338 1200 MGQVRVMVVAGTDSAYGKASQDVTVTQPLTLLSTLPRVMGPGESVALPVTVFVTDDNLKTVNLSVKADDALFTVEQGSAT 1279
Cdd:COG2373    958 NGTLRVMAVAWSDDRFGSAEATVTVRKPLVVRPSLPRFLAPGDRFELPVDVFNLTGKAGTVTVTLEASGGLTLEGEATQT 1037
                          810       820       830       840       850       860       870       880
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2191078338 1280 LHFDGSGDQIAMLRLHAnKQVGKGQVTVTARAGDQQATETVTLPVRAANPPTTREQRHVLQAGETWAGQFMPHG--LPGT 1357
Cdd:COG2373   1038 VTLAAGGRATVRFPLKA-PDAGDAKVTVTATGGGESDAREVELPVRPANPLVTRATSGVLAPGESWTLPLDLPGglRPGT 1116
                          890       900       910       920       930       940       950       960
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2191078338 1358 NAGTLTVSTLPAMGLERRLNYLLNYPHGCIEQTTSAVLPQLYLPQLV---NLSDEQQQTLQKNVEAGIARLRHFQLTDGG 1434
Cdd:COG2373   1117 GSLTLSLSSSPPLDLAGLLRYLLRYPYGCTEQTTSRALPLLYLSDLAealGLKGDKDAELRARIQAAIARLLSMQNSDGG 1196
                          970       980       990      1000      1010      1020      1030      1040
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2191078338 1435 FSYWPGLASASDWGTSYAGHFLLEARRLGYAVPAQMLEDWQRYQIRR----TQTLGQRPWEWSAEAYRLYTLALAGKPQV 1510
Cdd:COG2373   1197 FGLWPGGSESDPWLTAYATDFLLEAREAGYAVPDDALDRALDYLRNYlrnpWEIEYDDAYRLAVRAYALYVLARAGKADL 1276
                         1050      1060      1070      1080      1090      1100      1110      1120
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2191078338 1511 GAMNRLRERlnladkdYGRWASYhNGRWLLAAAYQQMGLSPVAAELIA-GESAVV---PYQAPGYTYGSSLRDQAIRL-T 1585
Cdd:COG2373   1277 GDLRYLYDR-------RKDALSP-LAKAQLAAALALLGDKARAEELLAaALARLRetgARDYWYGDYGSPLRDQALALaL 1348
                         1130      1140      1150      1160      1170      1180      1190      1200
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2191078338 1586 VKEGAGDDNGAWELADDVAASLASERWYSTQSTAWALMAMARYAGGKEGDEGYRFAWR-DGKQswQDLQARSPVYQQALQ 1664
Cdd:COG2373   1349 LAELGPDAPLAPKLARWLAKALKSGRWLSTQETAWALLALAAYARAAGASPDFTATLTlDGKT--LPLTGRGPLARVTLP 1426
                         1210      1220      1230      1240      1250      1260      1270      1280
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2191078338 1665 GDDY--RGVAVRNDSERKLFVTLSNTGTPPPGQEQPVSDGLRLNARFSDDNGQAVNPTTLTQGTDFHARVVVTNTSGReL 1742
Cdd:COG2373   1427 AAELlaGPLTITNTGDGPLYYTLTLSGYPAEGPPPAASNGLEIERRYYDLDGKPIDPASLKQGDLVVVRLTVTAPSGR-V 1505
                         1290      1300      1310      1320      1330      1340      1350      1360
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2191078338 1743 KNLALTQILPSGWQITSSRLSGSAEQQD-DKDQPPVTYQDLRDDRVLSYFDLPAGKSISLSVDLNASFAGHYYLPAWTVE 1821
Cdd:COG2373   1506 ENVAVVDPLPAGFEIENPRLATSGDLGDwLGDSWQPDHQEFRDDRVVAAFDLDPAGTYTFAYLVRAVTPGTFVLPPAQAE 1585
                         1370      1380
                   ....*....|....*....|
gi 2191078338 1822 AMYDGSKQARSAGQWVTVKP 1841
Cdd:COG2373   1586 DMYRPEVRARSAGGRVTVVA 1605
A2M_like cd02891
Proteins similar to alpha2-macroglobulin (alpha (2)-M). Alpha (2)-M is a major carrier ...
1372-1628 1.08e-41

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.


Pssm-ID: 239221 [Multi-domain]  Cd Length: 282  Bit Score: 155.24  E-value: 1.08e-41
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2191078338 1372 LERRLNYLLNYPHGCIEQTTSAVLPQLYLPQLVN----LSDEQQQTLQKNVEAGIARLRHFQLTDGGFSYWPGLASASDW 1447
Cdd:cd02891      1 SLGNLDYLLRYPYGCGEQTMSRAAPNLYVLKYLDatgqLTPEIREKALEYIRKGYQRLLTYQRSDGSFSAWGNSDSGSTW 80
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2191078338 1448 GTSYAGHFLLEARR------------LGYAVPAQMLEDW---QRYQIRRTQTLGQRPwEWSAEAYRLYTLALAGK----P 1508
Cdd:cd02891     81 LTAYVVKFLSQARKyidvdenvlaraLGWLVPQQKEDGSfreLGPVIHREMKGGVDD-SVSLTAYVLIALAEAGKacdaS 159
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2191078338 1509 QVGAMNRLRERLNLADKDYgrwasyhnGRWLLAAAYQQMGLSPVAAEL--------IAGESAVVPYQAPGYTYGSSLRDQ 1580
Cdd:cd02891    160 IEKALAYLETQLDGLLDPY--------ALAILAYALALAGDSTRADEAlkklleaaREKGGTAHWSLSWPGDYGSSLRVE 231
                          250       260       270       280       290
                   ....*....|....*....|....*....|....*....|....*....|....*..
gi 2191078338 1581 AIRL----TVKEGAGDDngawelADDVAASLASER-----WYSTQSTAWALMAMARY 1628
Cdd:cd02891    232 ATAYallaLLKLGDLEE------AGPIAKWLAQQRnsgggFLSTQDTVVALQALAAY 282
A2M_BRD pfam07703
Alpha-2-macroglobulin bait region domain; Alpha-2-macroglobulins (A2Ms) are plasma proteins ...
971-1112 1.40e-28

Alpha-2-macroglobulin bait region domain; Alpha-2-macroglobulins (A2Ms) are plasma proteins that trap and inhibit a broad range of proteases and are major components of the eukaryotic innate immune system. However, A2M-like proteins were identified in pathogenically invasive bacteria and species that colonize higher eukaryotes. This domain is found in eukaryotic and bacterial proteins. In human A2Ms, this domain encompasses macroglobulin-like domain MG5 and 6 including bait region. In Salmonella enterica ser A2Ms, this domain encompasses MG7 and MG8 including the bait region. The Bait region is cleaved by proteases, followed by a large conformational change that blocks the target protease within a cage-like complex. This model of protease entrapment is recognized as the Venus flytrap mechanism.


Pssm-ID: 462235 [Multi-domain]  Cd Length: 139  Bit Score: 112.44  E-value: 1.40e-28
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2191078338  971 LSLSADKPRYQVGDTAHIELPSVASGRLLVSLETgSRVLDHYWLPATGQAQ---TLDIPVTAEMAPNVYVNVALLQPhqr 1047
Cdd:pfam07703    1 LHLSTDKTEYKPGETATVTVKSPFDGTVERDGFT-YLVLSKGQIVVVGRGGvttSFSLPVTAEMAPSARVVAYYVRV--- 76
                           90       100       110       120       130       140
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*.
gi 2191078338 1048 DNDRPIRLYGVVPLLVDDPATR-LTPQIKaPEQVKPGQTFSVAVSEKQGhaMTYTLAVVDEGLLGL 1112
Cdd:pfam07703   77 DLSKPEVVADSVWVDVDDTCENkLKVTLS-AEKYRPGSTVELKVKADPG--AYVALAAVDKGVLLL 139
bMG3 pfam11974
Bacterial alpha-2-macroglobulin MG3 domain; This is the MG3 domain from bacterial ...
509-604 5.63e-21

Bacterial alpha-2-macroglobulin MG3 domain; This is the MG3 domain from bacterial alpha2-macroglobulins.


Pssm-ID: 432232 [Multi-domain]  Cd Length: 102  Bit Score: 89.58  E-value: 5.63e-21
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2191078338  509 ASNLGLIAKQGQNNqLYVMASSLDGNQPLKGVALTAYNYQLQRIGEGHTDKDGMATLTL------DGTAYYLQASRDKDV 582
Cdd:pfam11974    1 VSDLGLHAKQGRDG-LLVWVTSLDSGKPVAGVEVRLLDCNGQVLATGTTDAQGHARFEGpltrdgGAAPALVSARKDGDF 79
                           90       100
                   ....*....|....*....|..
gi 2191078338  583 GYLKLARNRALPTNQFNTGGEQ 604
Cdd:pfam11974   80 AFLRLDWGPALDLSDFDVGGRP 101
ISOPREN_C2_like cd00688
This group contains class II terpene cyclases, protein prenyltransferases beta subunit, two ...
1372-1628 4.20e-20

This group contains class II terpene cyclases, protein prenyltransferases beta subunit, two broadly specific proteinase inhibitors alpha2-macroglobulin (alpha (2)-M) and pregnancy zone protein (PZP) and, the C3 C4 and C5 components of vertebrate complement. Class II terpene cyclases include squalene cyclase (SQCY) and 2,3-oxidosqualene cyclase (OSQCY), these integral membrane proteins catalyze a cationic cyclization cascade converting linear triterpenes to fused ring compounds. The protein prenyltransferases include protein farnesyltransferase (FTase) and geranylgeranyltransferase types I and II (GGTase-I and GGTase-II) which catalyze the carboxyl-terminal lipidation of Ras, Rab, and several other cellular signal transduction proteins, facilitating membrane associations and specific protein-protein interactions. Alpha (2)-M is a major carrier protein in serum and involved in the immobilization and entrapment of proteases. PZP is a pregnancy associated protein. Alpha (2)-M and PZP are known to bind to and, may modulate, the activity of placental protein-14 in T-cell growth and cytokine production thereby protecting the allogeneic fetus from attack by the maternal immune system.


Pssm-ID: 238362 [Multi-domain]  Cd Length: 300  Bit Score: 93.00  E-value: 4.20e-20
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2191078338 1372 LERRLNYLLNYPHG--------CIEQTTSAVLPQLYLPQLVNLSDEQQQTlQKNVEAGIARLRHFQLTDGGFSYWPGLAS 1443
Cdd:cd00688      1 IEKHLKYLLRYPYGdghwyqslCGEQTWSTAWPLLALLLLLAATGIRDKA-DENIEKGIQRLLSYQLSDGGFSGWGGNDY 79
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2191078338 1444 ASDWGTSYAGHFLLEARR------------LGYAVPAQMlED--WQRYQIRRTQTLGQRPwEWSAEAYRLYTLALAGKPQ 1509
Cdd:cd00688     80 PSLWLTAYALKALLLAGDyiavdridlaraLNWLLSLQN-EDggFREDGPGNHRIGGDES-DVRLTAYALIALALLGKLD 157
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2191078338 1510 V-----GAMNRLRERLNlADKDYGRWASYH-NGRWLLAAAYQQMG--LSPVAAELIA-------GESAVVPYQAPGYTYG 1574
Cdd:cd00688    158 PdplieKALDYLLSCQN-YDGGFGPGGESHgYGTACAAAALALLGdlDSPDAKKALRwllsrqrPDGGWGEGRDRTNKLS 236
                          250       260       270       280       290       300
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*.
gi 2191078338 1575 SSLRDQAIRLTVKegAGDDNGAWELADDVAASLASER-----WYS-------TQSTAWALMAMARY 1628
Cdd:cd00688    237 DSCYTEWAAYALL--ALGKLGDLEDAEKLVKWLLSQQnedggFSSkpgksydTQHTVFALLALSLY 300
bMG6 pfam17962
Bacterial macroglobulin domain 6; This macroglobulin domain is found in bacterial alpha 2 ...
848-956 3.56e-19

Bacterial macroglobulin domain 6; This macroglobulin domain is found in bacterial alpha 2 macroglobulin proteins. It adopts an Ig-like beta sandwich fold.


Pssm-ID: 436175  Cd Length: 112  Bit Score: 84.61  E-value: 3.56e-19
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2191078338  848 GDSLSRDEKHGIDLVSLDSDGKPDPDRALDITVYRIDWRWWWDRSDDkLTNFISDPNTKEVTRAHVTTDQDGHALWQLdg 927
Cdd:pfam17962    8 DGSLEEGKEAAFEVVAVDADGKPVAVQGLEWTLYREEWDYQWYRQDG-GWSYEPVTRDKRVATGTVDTGADGPATISL-- 84
                           90       100
                   ....*....|....*....|....*....
gi 2191078338  928 aDYDWGRHLIRVCEQDGQHCTAQTVYLGW 956
Cdd:pfam17962   85 -PVDWGRYRLEVEDPGGGAATSVRFYAGW 112
MG2 pfam01835
MG2 domain; This is the MG2 (macroglobulin) domain of alpha-2-macroglobulin in eukaryotes. ...
610-702 3.85e-19

MG2 domain; This is the MG2 (macroglobulin) domain of alpha-2-macroglobulin in eukaryotes. Alpha-2-macroglobulins (A2Ms) are plasma proteins that trap and inhibit a broad range of proteases and are major components of the eukaryotic innate immune system. However, A2M-like proteins were identified in pathogenically invasive bacteria and species that colonize higher eukaryotes. This domain is found in eukaryotic and bacterial proteins. In human A2Ms, this domain is termed macroglobulin-like (MG) domain 2 and in Salmonella enterica ser A2Ms, this is domain 4.


Pssm-ID: 426464 [Multi-domain]  Cd Length: 95  Bit Score: 83.90  E-value: 3.85e-19
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2191078338  610 KGFFYGERDVWRPGDDIHLTFILQDKQHRIPDDHPLTLDWFDPRGNKVKSYTLDKPVGNFYAFTLHTDEQAPTGNWRAVA 689
Cdd:pfam01835    1 RAFVYTDRGIYRPGETVHFKGLLRDQDLRPLAGLPVTLTVTDPDGNEVRRLPLTTDEFGGFSGSFPLPETAPTGTYTVVL 80
                           90
                   ....*....|....*
gi 2191078338  690 R--LGQRYFDTPVRV 702
Cdd:pfam01835   81 RdgAGGSLGSGSFRV 95
bMG10 pfam17973
Bacterial Alpha-2-macroglobulin MG10 domain; Alpha-2-macroglobulins (A2Ms) are plasma proteins ...
1702-1825 8.64e-13

Bacterial Alpha-2-macroglobulin MG10 domain; Alpha-2-macroglobulins (A2Ms) are plasma proteins that trap and inhibit a broad range of proteases and are major components of the eukaryotic innate immune system. However, A2M-like proteins were identified in pathogenically invasive bacteria and species that colonize higher eukaryotes. Bacterial A2Ms are located in the periplasm where they are believed to provide protection to the cell by trapping external proteases through a covalent interaction with an activated thioester. This domain is found on the C-terminal region in A2Ms in bacteria. Structure analysis of Salmonella enterica ser A2Ms (SA-A2Ms) show that they are composed of 13 domains, all of which fold as variants of beta sandwiches with the exception of the TED, which consists of 14 alpha helices. Most of the beta sandwich domains appear to serve a structural role and are referred to as the macroglobulin-like (MG) domains. This is the MG10 domain. MG10 is markedly different from the other MG domains in that it has more beta strands and an alpha helix. The position of MG10 is stabilized by, in addition to other hydrogen bonds, the formation of a beta sheet with MG9.


Pssm-ID: 465598  Cd Length: 128  Bit Score: 66.94  E-value: 8.64e-13
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2191078338 1702 GLRLNARFSDDNGQAVNP---TTLTQGTDFhaRVVVTNTSGRELKNLALTQILPSGWQIT---SSRLSGSAEQQDDKDQP 1775
Cdd:pfam17973    1 GLSVTRRFYVLEGSGVSAsdaETLKVGDKV--RVRLTVTTDRDRDFVALEDPLPAGLEPVnplSGYTWEGGLGYPDNTQP 78
                           90       100       110       120       130
                   ....*....|....*....|....*....|....*....|....*....|.
gi 2191078338 1776 PvtYQDLRDDRVLSYFD-LPAGKSiSLSVDLNASFAGHYYLPAWTVEAMYD 1825
Cdd:pfam17973   79 S--YREVRDDRVRFFADyLPKGTY-TFEYLVRAVTPGTFTVPPATAESMYA 126
bMG5 pfam17972
Bacterial Alpha-2-macroglobulin MG5 domain; Alpha-2-macroglobulins (A2Ms) are plasma proteins ...
709-819 1.76e-12

Bacterial Alpha-2-macroglobulin MG5 domain; Alpha-2-macroglobulins (A2Ms) are plasma proteins that trap and inhibit a broad range of proteases and are major components of the eukaryotic innate immune system. However, A2M-like proteins were identified in pathogenically invasive bacteria and species that colonize higher eukaryotes. Bacterial A2Ms are located in the periplasm where they are believed to provide protection to the cell by trapping external proteases through a covalent interaction with an activated thioester. This domain is found on the N-terminal region in A2Ms in bacteria. Structure analysis of Salmonella enterica ser A2Ms (SA-A2Ms) show that they are composed of 13 domains, all of which fold as variants of beta sandwiches with the exception of the TED, which consists of 14 alpha helices. Most of the beta sandwich domains appear to serve a structural role and are referred to as the macroglobulin-like (MG) domains. This is the MG5 domain.


Pssm-ID: 436183  Cd Length: 127  Bit Score: 66.00  E-value: 1.76e-12
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2191078338  709 RLKIELGLPEwLHANQGEPVTLFSQ--WLNGATASRLKADVKVRVSGRATTFDGYQAYHFDDPTRALKSEPFTAFDGQLD 786
Cdd:pfam17972    2 RMDLDLSLPD-APLAPGDPAELDVDarYLYGAPAAGLRLEGELTLRPARHALAGFPGYRFGRHDEELLKRTRDLPDLTTD 80
                           90       100       110
                   ....*....|....*....|....*....|....
gi 2191078338  787 ASGNASFPLQVPVEQAPGM-VRAVLTTRVFENSG 819
Cdd:pfam17972   81 AQGKATLTVPLPEWPAATRpLEARVTVSLLESGG 114
A2M pfam00207
Alpha-2-macroglobulin family; This family includes the C-terminal region of the ...
1181-1265 2.33e-07

Alpha-2-macroglobulin family; This family includes the C-terminal region of the alpha-2-macroglobulin family.


Pssm-ID: 459711 [Multi-domain]  Cd Length: 91  Bit Score: 50.28  E-value: 2.33e-07
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2191078338 1181 PFQLDDNETAHHSITLPAYMGQVRVMVVA-GTDSAYGKAS-QDVTVTQPLTLLSTLPRVMGPGESVALPVTVFvtddNLK 1258
Cdd:pfam00207    6 PVLVTDNGKASLSFTLPDSITTWRATAFAlSPDTGLGVAEpPELVVFKPFFVDLNLPYSVRRGEQFELKATVF----NYL 81

                   ....*..
gi 2191078338 1259 TVNLSVK 1265
Cdd:pfam00207   82 DKCLKVR 88
complement_C3_C4_C5 cd02896
Proteins similar to C3, C4 and C5 of vertebrate complement. The vertebrate complement system, ...
1376-1451 1.10e-04

Proteins similar to C3, C4 and C5 of vertebrate complement. The vertebrate complement system, comprised of a large number of distinct plasma proteins, 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.


Pssm-ID: 239226 [Multi-domain]  Cd Length: 297  Bit Score: 46.11  E-value: 1.10e-04
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2191078338 1376 LNYLLNYPHGCIEQTTSAVLPQLYL-------PQLVNLSDEQQQTLQKNVEAGIARLRHFQLTDGGFSYWPGLASaSDWG 1448
Cdd:cd02896      5 LEKLIRLPTGCGEQTMIKLAPTVYAlryldttNQWEKLGPERRDEALKYIRQGYQRQLSYRKPDGSYAAWKNRPS-STWL 83

                   ...
gi 2191078338 1449 TSY 1451
Cdd:cd02896     84 TAF 86
TED_complement pfam07678
A-macroglobulin TED domain; This entry corresponds to the TED domain of the complement ...
1376-1461 3.99e-03

A-macroglobulin TED domain; This entry corresponds to the TED domain of the complement components such as C3, C4 and C5. This domain contains a short highly conserved region of proteinase-binding alpha-macro-globulins contains the cysteine and a glutamine of a thiol-ester bond that is cleaved at the moment of proteinase binding, and mediates the covalent binding of the alpha-macro-globulin to the proteinase. The GCGEQ motif is highly conserved.


Pssm-ID: 462227 [Multi-domain]  Cd Length: 311  Bit Score: 41.52  E-value: 3.99e-03
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2191078338 1376 LNYLLNYPHGCIEQTTSAVLPQLYLPQLVNLSD----EQQQTLQKNVEAGIARLRHFQLTDGGFSYWpGLASASDWGTSY 1451
Cdd:pfam07678   19 LSSLLRLPYGCGEQNMVLFAPNVYVLRYLDKTNqltkLIKSKAIDYLEQGYQRQLSYKHPDGSYSAF-GHSPGSTWLTAF 97
                           90
                   ....*....|
gi 2191078338 1452 AGHFLLEARR 1461
Cdd:pfam07678   98 VLKVFAQARK 107
 
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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