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Conserved domains on  [gi|583228250|gb|EWC90449|]
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hypothetical protein PFNF54_00744 [Plasmodium falciparum NF54]

Protein Classification

Graphical summary

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List of domain hits

Name Accession Description Interval E-value
ATS pfam15445
acidic terminal segments, variant surface antigen of PfEMP1; ATS is the intracellular and ...
1763-2211 0e+00

acidic terminal segments, variant surface antigen of PfEMP1; ATS is the intracellular and relatively conserved acidic terminal segment of the Plasmodium falciparum erythrocyte membrane protein-1 (PfEMP1). this domain appears to be present in all variants of the highly polymorphic PfEMP1 proteins.


:

Pssm-ID: 373851 [Multi-domain]  Cd Length: 446  Bit Score: 764.74  E-value: 0e+00
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 583228250  1763 TLAWSVGIGFAAFTYFYLK------------VLYILRIDYDIPTLKSSNRYIPYASDRYKGKTYIYMEGDSSGDEKYAFM 1830
Cdd:pfam15445    1 TIPWSVGIAFAAFTYFFLKkktkssvgnlfqILQIPKGDYDIPTLKSKNRYIPYASDRYKGKTYIYMEGDSSGDEKYAFM 80
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 583228250  1831 SDTTDVTSSESEYEELDINDIYVPGSPKYKTLIEVVLEPSGNNTPT-----SDIPSDNTPTPQPITDDEWNQLKKDFISN 1905
Cdd:pfam15445   81 SDTTDITSSESEYEELDINDIYVPGSPKYKTLIEVVLEPSKNNTNTpsdtqNDIPSDDIPSTNKITDEEWNTLKHDFISN 160
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 583228250  1906 MLQNTQNTEPNILHD-NVDNNTHP-TMSRHNMDQKPFIMSIHDRNLFSGEEYNYdmfnsgnnpiNISDSTNSMDSLtsnn 1983
Cdd:pfam15445  161 MLQNTQNDEPNILHSgNVPNNTHPnTLSRDNMEEKPFIMSIHDRNLYTGEEYSY----------NINMSTNSMDDI---- 226
                          250       260       270       280       290       300       310       320
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 583228250  1984 hsPYNDKNDLYSGIDLINDALSGN-HIDIYDEMLKRKENELFGTqHHPKNiTSNRVVTQTSSDDPITNQINLFHKWLDRH 2062
Cdd:pfam15445  227 --PKYVSNNVYSGIDLINDTLSGNqHIDIYDEVLKRKENELFGT-NHTKH-TSTNSVAKNTNSDPILNQLNLFHKWLDRH 302
                          330       340       350       360       370       380       390       400
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 583228250  2063 RDMCEKWKNNHERLPKLKELWENET-HSGDINS--GIPSGNHVLNTDVSIQIDMDNPKTMNEFTNMDTNPDKSTMDTILD 2139
Cdd:pfam15445  303 RDMCEKWKNKEERLDKLKEEWNKENnHSGDIHPsdDIPSDNKVLNTDVSIQIDMDNPKPKNEFTNMDTNPDNSTMDTILD 382
                          410       420       430       440       450       460       470
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|..
gi 583228250  2140 DLEKYNEPyYYDFYKHDIYYDVNDDkasedhinmDHNKMDNNNSDVPTKVQIEMNViNNQELLQNEYPISHM 2211
Cdd:pfam15445  383 DLEKYNEP-YYDIYEDDIYYDVNDH---------DASTVDSNNMDVPSKVQIEMDV-NNTKLVEEKYPISDV 443
PFEMP pfam03011
PFEMP1 DBL domain; PfEMP1 (Plasmodium falciparum erythrocyte membrane protein) has been ...
1502-1648 4.86e-53

PFEMP1 DBL domain; PfEMP1 (Plasmodium falciparum erythrocyte membrane protein) has been identified as the rosetting ligand of the malaria parasite P. falciparum. Rosetting is the adhesion of infected erythrocytes with uninfected erythrocytes in the vasculature of the infected organ, and is associated with severe malaria. PfEMP1 interacts with Complement Receptor One on uninfected erythrocytes to form rosettes. The extreme variation within these proteins and the grouping of var genes implies that var gene recombination preferentially occurs within var gene groups. These groups reflect a functional diversification that has evolved to cope with the varying conditions of transmission and host immune response met by the parasite. A recombination hotspot was uncovered between Duffy-binding-like (DBL) subdomains. Solution of the crystal structure of the N-terminal and first DBL region of PfEMP1 from the VarO variant of the PfEMP1 protein is found to be directly implicated in rosetting as the heparin-binding site.


:

Pssm-ID: 281064  Cd Length: 154  Bit Score: 183.47  E-value: 4.86e-53
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 583228250  1502 LVTHWVQNFLEDYKKIKHKISHCTKTDQGSTCQNKCQNKCKCVGEWIKLKQQEWEEIKKRFLNQYK------MDSDEYYP 1575
Cdd:pfam03011    1 LFKRWVEYFLEDSIKWRKKLKSCINNGKGKCCKKECKNDCECFKKWVEKKKEEWKKIKEHFLKQYKlkgltgKTLDEYLD 80
                           90       100       110       120       130       140       150
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....
gi 583228250  1576 VRSVLETFLVQIGAANANNDVKKLIKLSEFYKSCGCSAKTNSE-NNKNEDAIDCMLDKLGKKAEKCHDQHSDNP 1648
Cdd:pfam03011   81 LKSFLETFLFYIDIKEAYGDVKELKKLEEILDEEGCSAGAESAkNNKNEDAIDKLLDKEEKKANNCKEKHKEND 154
Duffy_binding pfam05424
Duffy binding domain; This domain is found in Plasmodium Duffy binding proteins. Plasmodium ...
122-274 8.70e-50

Duffy binding domain; This domain is found in Plasmodium Duffy binding proteins. Plasmodium vivax and Plasmodium knowlesi merozoites invade human erythrocytes that express Duffy blood group surface determinants. The Duffy receptor family is localized in micronemes, an organelle found in all organizms of the phylum Apicomplexa. This family is closely associated on PfEMP1 proteins with PFEMP, pfam03011.


:

Pssm-ID: 428465 [Multi-domain]  Cd Length: 178  Bit Score: 175.15  E-value: 8.70e-50
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 583228250   122 ACAPYRRLFLCNKNMEKMGRT-STTKHDLLLDVCMAANYEAQ-------------------------------------- 162
Cdd:pfam05424    1 ACAPPRRLHLCVKNLEKINSGnTTTTHDLLKAVILAAKYEGFslwhkykkkntkygdipsefcrqmaysfadigdiirgk 80
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 583228250   163 ---------DQLESKLKKIFGDIYNELTNGRNgvkdhyqddNGGNYFQLREDWWTANRATVWKAITCKADTGNAYFRPTC 233
Cdd:pfam05424   81 dlylgnnkkKKLEENLKKIFKKIYEKLTSKGK---------DDGNYYQLREDWWEANREDIWKAMTCALTYGAKYFRKTC 151
                          170       180       190       200
                   ....*....|....*....|....*....|....*....|.
gi 583228250   234 SNRQGPSQAHHycrcngdkpdddkpNTDPPTYFDYVPQYLR 274
Cdd:pfam05424  152 GDGISPSTAGC--------------NDDVPTYFDYVPQFLR 178
PFEMP pfam03011
PFEMP1 DBL domain; PfEMP1 (Plasmodium falciparum erythrocyte membrane protein) has been ...
623-771 1.74e-46

PFEMP1 DBL domain; PfEMP1 (Plasmodium falciparum erythrocyte membrane protein) has been identified as the rosetting ligand of the malaria parasite P. falciparum. Rosetting is the adhesion of infected erythrocytes with uninfected erythrocytes in the vasculature of the infected organ, and is associated with severe malaria. PfEMP1 interacts with Complement Receptor One on uninfected erythrocytes to form rosettes. The extreme variation within these proteins and the grouping of var genes implies that var gene recombination preferentially occurs within var gene groups. These groups reflect a functional diversification that has evolved to cope with the varying conditions of transmission and host immune response met by the parasite. A recombination hotspot was uncovered between Duffy-binding-like (DBL) subdomains. Solution of the crystal structure of the N-terminal and first DBL region of PfEMP1 from the VarO variant of the PfEMP1 protein is found to be directly implicated in rosetting as the heparin-binding site.


:

Pssm-ID: 281064  Cd Length: 154  Bit Score: 164.59  E-value: 1.74e-46
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 583228250   623 FFNFWVAHMLKDSIHWRtKKIKGCLKNGKAIKCTDKCKGDCKCFERWVEQKREEWTNIKEHFGKQTDIPtGLTPDALLEG 702
Cdd:pfam03011    1 LFKRWVEYFLEDSIKWR-KKLKSCINNGKGKCCKKECKNDCECFKKWVEKKKEEWKKIKEHFLKQYKLK-GLTGKTLDEY 78
                           90       100       110       120       130       140       150
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*.
gi 583228250   703 V-----LEKGVLLTSIKEAYGDAKETEHIKQLLDETAVAGGVVVGA--KDNTTIDKLLEQELKDANRCKNCEQRKP 771
Cdd:pfam03011   79 LdlksfLETFLFYIDIKEAYGDVKELKKLEEILDEEGCSAGAESAKnnKNEDAIDKLLDKEEKKANNCKEKHKEND 154
PTZ00176 super family cl31413
erythrocyte membrane protein 1 (PfEMP1); Provisional
12-392 4.42e-42

erythrocyte membrane protein 1 (PfEMP1); Provisional


The actual alignment was detected with superfamily member PTZ00176:

Pssm-ID: 140204 [Multi-domain]  Cd Length: 1317  Bit Score: 170.22  E-value: 4.42e-42
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 583228250   12 SAKDAKDLLDMIGKDVHDQVEKEAagRGGSELKGLLS-------LAKGSGVELAAFPEPCGLI-KDKGDELLGDSGERHP 83
Cdd:PTZ00176   11 SKLSARNVLENIGNEIKDKRENES--KYTDKLKGSLWearfsdgLSSSFGDVRSGYYDSCSLDhKFHTNINNGYPPARNP 88
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 583228250   84 CGNttgkEDVDRFSVKQQAEYDNKKMKCSygSNGTDVGACAPYRRLFLCNKNMEKMGRTST-TKHDLLLDVCMAANYEAQ 162
Cdd:PTZ00176   89 CDG----RNQNRFDENGESYCNSDKIRGN--ENNSNAGACAPFRRQNMCDKNLEYLINKNTeNTHDLLGNVLVTAKYEGE 162
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 583228250  163 ----------------------------------------DQLESKLKKIFGDIYNELTNgrNGVKDHYQDDNGGNYFQL 202
Cdd:PTZ00176  163 sivnnhpdkdkssvctalarsfadigdivrgkdmfkrnkhDNVENGLREVFKKIYEGLKN--NGAREHYKEVKNGNYIKL 240
                         250       260       270       280       290       300       310       320
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 583228250  203 REDWWTANRATVWKAITCKADTgNAYFRPTCSNRQGPSQ-AHHYCRCNGDkpdddkpnTDPPTyFDYVPQYLRWFEEWAE 281
Cdd:PTZ00176  241 REDWWTANRDQVWKAMTCVAPE-NAYFRKTEADGIGISSlILPYSKCGRD--------TDPPV-VDYIPQRLRWMSEWSE 310
                         330       340       350       360       370       380       390       400
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 583228250  282 DFCRKKKIYVGIVKTYCRekyksgneprycsrngyDCTKTKRAIGKYRmGNQCISCLYACNPYVDWINNQKEQFDKQKQK 361
Cdd:PTZ00176  311 YFCNVLNKEIDEMNNQCK-----------------DCEMSRRCNNDTE-GEKCKKCKEQCQIFKELVSKWKNQFDKQSMK 372
                         410       420       430
                  ....*....|....*....|....*....|.
gi 583228250  362 YdkeIKIYKNGASGIRRQKrgTTTKYEGYEK 392
Cdd:PTZ00176  373 Y---MELYNKASTNITKQN--SSAPERGYRR 398
Duffy_binding pfam05424
Duffy binding domain; This domain is found in Plasmodium Duffy binding proteins. Plasmodium ...
922-1128 1.18e-34

Duffy binding domain; This domain is found in Plasmodium Duffy binding proteins. Plasmodium vivax and Plasmodium knowlesi merozoites invade human erythrocytes that express Duffy blood group surface determinants. The Duffy receptor family is localized in micronemes, an organelle found in all organizms of the phylum Apicomplexa. This family is closely associated on PfEMP1 proteins with PFEMP, pfam03011.


:

Pssm-ID: 428465 [Multi-domain]  Cd Length: 178  Bit Score: 131.63  E-value: 1.18e-34
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 583228250   922 ICVPPRRRKLYLGGFKRLTDGTAVSSEAtqagtpsqspkgdalLLTAFVETAAVETFFLWHkykqekkkpknevggaagv 1001
Cdd:pfam05424    1 ACAPPRRLHLCVKNLEKINSGNTTTTHD---------------LLKAVILAAKYEGFSLWH------------------- 46
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 583228250  1002 lqtiggtlensgeQNPQKKLQEsGEIPDDFLRQMFYTLGDYRDILVrgvaddkngGNNIILnasGNKEDmekmKKIQQEI 1081
Cdd:pfam05424   47 -------------KYKKKNTKY-GDIPSEFCRQMAYSFADIGDIIR---------GKDLYL---GNNKK----KKLEENL 96
                          170       180       190       200
                   ....*....|....*....|....*....|....*....|....*....
gi 583228250  1082 DKILEKSGSEAASGAQK--NSGISREKWWDKHAPSIWDGMVCALTYNTD 1128
Cdd:pfam05424   97 KKIFKKIYEKLTSKGKDdgNYYQLREDWWEANREDIWKAMTCALTYGAK 145
CIDR1_gamma pfam18562
Cysteine-Rich Interdomain Region 1 gamma; Rosetting is the capacity of infected RBCs to bind ...
1427-1479 6.61e-18

Cysteine-Rich Interdomain Region 1 gamma; Rosetting is the capacity of infected RBCs to bind uninfected RBCs, which is consistently associated with severe malaria in African children. The rosette-forming PfEMP1 adhesins, namely IT4/R29, Palo Alto 89F5 VarO, 3D7/PF13_0003 and IT4/var60, belong to a specific sub-group called groupA/UpsA var genes and all four present a specific Duffy Binding-Like and and Cysteine-Rich Interdomain Region (DBL1alpha1-CIDR1gamma) double domain Head region found at the extracellular region of PfEMP1. This entry represents the CIDR1gamma domain which increases the binding affinity to VarO (Palo Alto VarO parasites).


:

Pssm-ID: 408346  Cd Length: 52  Bit Score: 79.24  E-value: 6.61e-18
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|...
gi 583228250  1427 STVLDMRVIDDSATGFkGDGLEEaCGSANIFKGIRKEQWKCGKVCGYNVCKPK 1479
Cdd:pfam18562    1 TTTIDMLVSDNRGIKF-ENDLKE-CKEAGIFKGIRKDQWKCGKVCGYDVCKLK 51
 
Name Accession Description Interval E-value
ATS pfam15445
acidic terminal segments, variant surface antigen of PfEMP1; ATS is the intracellular and ...
1763-2211 0e+00

acidic terminal segments, variant surface antigen of PfEMP1; ATS is the intracellular and relatively conserved acidic terminal segment of the Plasmodium falciparum erythrocyte membrane protein-1 (PfEMP1). this domain appears to be present in all variants of the highly polymorphic PfEMP1 proteins.


Pssm-ID: 373851 [Multi-domain]  Cd Length: 446  Bit Score: 764.74  E-value: 0e+00
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 583228250  1763 TLAWSVGIGFAAFTYFYLK------------VLYILRIDYDIPTLKSSNRYIPYASDRYKGKTYIYMEGDSSGDEKYAFM 1830
Cdd:pfam15445    1 TIPWSVGIAFAAFTYFFLKkktkssvgnlfqILQIPKGDYDIPTLKSKNRYIPYASDRYKGKTYIYMEGDSSGDEKYAFM 80
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 583228250  1831 SDTTDVTSSESEYEELDINDIYVPGSPKYKTLIEVVLEPSGNNTPT-----SDIPSDNTPTPQPITDDEWNQLKKDFISN 1905
Cdd:pfam15445   81 SDTTDITSSESEYEELDINDIYVPGSPKYKTLIEVVLEPSKNNTNTpsdtqNDIPSDDIPSTNKITDEEWNTLKHDFISN 160
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 583228250  1906 MLQNTQNTEPNILHD-NVDNNTHP-TMSRHNMDQKPFIMSIHDRNLFSGEEYNYdmfnsgnnpiNISDSTNSMDSLtsnn 1983
Cdd:pfam15445  161 MLQNTQNDEPNILHSgNVPNNTHPnTLSRDNMEEKPFIMSIHDRNLYTGEEYSY----------NINMSTNSMDDI---- 226
                          250       260       270       280       290       300       310       320
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 583228250  1984 hsPYNDKNDLYSGIDLINDALSGN-HIDIYDEMLKRKENELFGTqHHPKNiTSNRVVTQTSSDDPITNQINLFHKWLDRH 2062
Cdd:pfam15445  227 --PKYVSNNVYSGIDLINDTLSGNqHIDIYDEVLKRKENELFGT-NHTKH-TSTNSVAKNTNSDPILNQLNLFHKWLDRH 302
                          330       340       350       360       370       380       390       400
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 583228250  2063 RDMCEKWKNNHERLPKLKELWENET-HSGDINS--GIPSGNHVLNTDVSIQIDMDNPKTMNEFTNMDTNPDKSTMDTILD 2139
Cdd:pfam15445  303 RDMCEKWKNKEERLDKLKEEWNKENnHSGDIHPsdDIPSDNKVLNTDVSIQIDMDNPKPKNEFTNMDTNPDNSTMDTILD 382
                          410       420       430       440       450       460       470
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|..
gi 583228250  2140 DLEKYNEPyYYDFYKHDIYYDVNDDkasedhinmDHNKMDNNNSDVPTKVQIEMNViNNQELLQNEYPISHM 2211
Cdd:pfam15445  383 DLEKYNEP-YYDIYEDDIYYDVNDH---------DASTVDSNNMDVPSKVQIEMDV-NNTKLVEEKYPISDV 443
PTZ00176 PTZ00176
erythrocyte membrane protein 1 (PfEMP1); Provisional
1780-2209 1.14e-148

erythrocyte membrane protein 1 (PfEMP1); Provisional


Pssm-ID: 140204 [Multi-domain]  Cd Length: 1317  Bit Score: 498.79  E-value: 1.14e-148
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 583228250 1780 LKVLYILRIDYDIPTLKSSNRYIPYASDRYKGKTYIYMEGDSSgDEKYAFMSDTTDVTSSESEYEELDINDIYVPGSPKY 1859
Cdd:PTZ00176  919 IRILQMSQNEYGIPTTKSPNKYVPYGSQRYKGKTYLYVEGDTD-EEKYMFMSDTTDITSSESEYEEMDINDIYVPGSPKY 997
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 583228250 1860 KTLIEVVLEPSGNNTPTsDIPSDNTPTPQpITDDEWNQLKKDFISNMLQNTQNTEpNILHDNVDNNTHPTMSRH-NMDQK 1938
Cdd:PTZ00176  998 KTLIEVVLEPSKRDTQN-DIPSDNTPSYK-LTDEEWNQLKDDFISQYLPNTEPNN-NYRSGNSPTNTNNTTTSHdNMGEK 1074
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 583228250 1939 PFIMSIHDRNLFSGEEYNYdmfnsgnnpiNISDSTNSMDSltsnnhsPYNDKNDLYSGIDLINDALSGN-HIDIYDEMLK 2017
Cdd:PTZ00176 1075 PFIMSIHDRNLYTGEEISY----------NINMSTNTMDD-------PKYVSNNVYSGIDLINDTLSGNqHIDIYDEVLK 1137
                         250       260       270       280       290       300       310       320
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 583228250 2018 RKENELFGTqHHPKNITSNRVVTQTSSDDPITNQINLFHKWLDRHRDMCEKWKNNHERLPKLKELWENETHSGDinsgIP 2097
Cdd:PTZ00176 1138 RKENELFGT-NHVKQTSIHSVAKNTYSDDAITNKINLFHKWLDRHRDMCEKWENHHERLAKLKEKWENDNDGGN----VP 1212
                         330       340       350       360       370       380       390       400
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 583228250 2098 SGNHVLNTDVSIQIDMDNPKTMNEFTNMDTNPDKSTMDTILDdlekynepyyydfykhDIYYDVNDDKASEDH-----IN 2172
Cdd:PTZ00176 1213 SDNHVLNTDVSIEIDMDNPKPINQFSNMDINVDTPTMDNMED----------------DIYYDVNDNDDDNDQpsvydIP 1276
                         410       420       430
                  ....*....|....*....|....*....|....*....
gi 583228250 2173 MDHNKMDnnnSDVPTKVQIEMNVINNQE--LLQNEYPIS 2209
Cdd:PTZ00176 1277 MDHNKVD---VDVPKKVHIEMKILNNTSngSLEQQFPIS 1312
PFEMP pfam03011
PFEMP1 DBL domain; PfEMP1 (Plasmodium falciparum erythrocyte membrane protein) has been ...
1502-1648 4.86e-53

PFEMP1 DBL domain; PfEMP1 (Plasmodium falciparum erythrocyte membrane protein) has been identified as the rosetting ligand of the malaria parasite P. falciparum. Rosetting is the adhesion of infected erythrocytes with uninfected erythrocytes in the vasculature of the infected organ, and is associated with severe malaria. PfEMP1 interacts with Complement Receptor One on uninfected erythrocytes to form rosettes. The extreme variation within these proteins and the grouping of var genes implies that var gene recombination preferentially occurs within var gene groups. These groups reflect a functional diversification that has evolved to cope with the varying conditions of transmission and host immune response met by the parasite. A recombination hotspot was uncovered between Duffy-binding-like (DBL) subdomains. Solution of the crystal structure of the N-terminal and first DBL region of PfEMP1 from the VarO variant of the PfEMP1 protein is found to be directly implicated in rosetting as the heparin-binding site.


Pssm-ID: 281064  Cd Length: 154  Bit Score: 183.47  E-value: 4.86e-53
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 583228250  1502 LVTHWVQNFLEDYKKIKHKISHCTKTDQGSTCQNKCQNKCKCVGEWIKLKQQEWEEIKKRFLNQYK------MDSDEYYP 1575
Cdd:pfam03011    1 LFKRWVEYFLEDSIKWRKKLKSCINNGKGKCCKKECKNDCECFKKWVEKKKEEWKKIKEHFLKQYKlkgltgKTLDEYLD 80
                           90       100       110       120       130       140       150
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....
gi 583228250  1576 VRSVLETFLVQIGAANANNDVKKLIKLSEFYKSCGCSAKTNSE-NNKNEDAIDCMLDKLGKKAEKCHDQHSDNP 1648
Cdd:pfam03011   81 LKSFLETFLFYIDIKEAYGDVKELKKLEEILDEEGCSAGAESAkNNKNEDAIDKLLDKEEKKANNCKEKHKEND 154
Duffy_binding pfam05424
Duffy binding domain; This domain is found in Plasmodium Duffy binding proteins. Plasmodium ...
122-274 8.70e-50

Duffy binding domain; This domain is found in Plasmodium Duffy binding proteins. Plasmodium vivax and Plasmodium knowlesi merozoites invade human erythrocytes that express Duffy blood group surface determinants. The Duffy receptor family is localized in micronemes, an organelle found in all organizms of the phylum Apicomplexa. This family is closely associated on PfEMP1 proteins with PFEMP, pfam03011.


Pssm-ID: 428465 [Multi-domain]  Cd Length: 178  Bit Score: 175.15  E-value: 8.70e-50
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 583228250   122 ACAPYRRLFLCNKNMEKMGRT-STTKHDLLLDVCMAANYEAQ-------------------------------------- 162
Cdd:pfam05424    1 ACAPPRRLHLCVKNLEKINSGnTTTTHDLLKAVILAAKYEGFslwhkykkkntkygdipsefcrqmaysfadigdiirgk 80
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 583228250   163 ---------DQLESKLKKIFGDIYNELTNGRNgvkdhyqddNGGNYFQLREDWWTANRATVWKAITCKADTGNAYFRPTC 233
Cdd:pfam05424   81 dlylgnnkkKKLEENLKKIFKKIYEKLTSKGK---------DDGNYYQLREDWWEANREDIWKAMTCALTYGAKYFRKTC 151
                          170       180       190       200
                   ....*....|....*....|....*....|....*....|.
gi 583228250   234 SNRQGPSQAHHycrcngdkpdddkpNTDPPTYFDYVPQYLR 274
Cdd:pfam05424  152 GDGISPSTAGC--------------NDDVPTYFDYVPQFLR 178
PFEMP pfam03011
PFEMP1 DBL domain; PfEMP1 (Plasmodium falciparum erythrocyte membrane protein) has been ...
623-771 1.74e-46

PFEMP1 DBL domain; PfEMP1 (Plasmodium falciparum erythrocyte membrane protein) has been identified as the rosetting ligand of the malaria parasite P. falciparum. Rosetting is the adhesion of infected erythrocytes with uninfected erythrocytes in the vasculature of the infected organ, and is associated with severe malaria. PfEMP1 interacts with Complement Receptor One on uninfected erythrocytes to form rosettes. The extreme variation within these proteins and the grouping of var genes implies that var gene recombination preferentially occurs within var gene groups. These groups reflect a functional diversification that has evolved to cope with the varying conditions of transmission and host immune response met by the parasite. A recombination hotspot was uncovered between Duffy-binding-like (DBL) subdomains. Solution of the crystal structure of the N-terminal and first DBL region of PfEMP1 from the VarO variant of the PfEMP1 protein is found to be directly implicated in rosetting as the heparin-binding site.


Pssm-ID: 281064  Cd Length: 154  Bit Score: 164.59  E-value: 1.74e-46
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 583228250   623 FFNFWVAHMLKDSIHWRtKKIKGCLKNGKAIKCTDKCKGDCKCFERWVEQKREEWTNIKEHFGKQTDIPtGLTPDALLEG 702
Cdd:pfam03011    1 LFKRWVEYFLEDSIKWR-KKLKSCINNGKGKCCKKECKNDCECFKKWVEKKKEEWKKIKEHFLKQYKLK-GLTGKTLDEY 78
                           90       100       110       120       130       140       150
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*.
gi 583228250   703 V-----LEKGVLLTSIKEAYGDAKETEHIKQLLDETAVAGGVVVGA--KDNTTIDKLLEQELKDANRCKNCEQRKP 771
Cdd:pfam03011   79 LdlksfLETFLFYIDIKEAYGDVKELKKLEEILDEEGCSAGAESAKnnKNEDAIDKLLDKEEKKANNCKEKHKEND 154
PTZ00176 PTZ00176
erythrocyte membrane protein 1 (PfEMP1); Provisional
12-392 4.42e-42

erythrocyte membrane protein 1 (PfEMP1); Provisional


Pssm-ID: 140204 [Multi-domain]  Cd Length: 1317  Bit Score: 170.22  E-value: 4.42e-42
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 583228250   12 SAKDAKDLLDMIGKDVHDQVEKEAagRGGSELKGLLS-------LAKGSGVELAAFPEPCGLI-KDKGDELLGDSGERHP 83
Cdd:PTZ00176   11 SKLSARNVLENIGNEIKDKRENES--KYTDKLKGSLWearfsdgLSSSFGDVRSGYYDSCSLDhKFHTNINNGYPPARNP 88
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 583228250   84 CGNttgkEDVDRFSVKQQAEYDNKKMKCSygSNGTDVGACAPYRRLFLCNKNMEKMGRTST-TKHDLLLDVCMAANYEAQ 162
Cdd:PTZ00176   89 CDG----RNQNRFDENGESYCNSDKIRGN--ENNSNAGACAPFRRQNMCDKNLEYLINKNTeNTHDLLGNVLVTAKYEGE 162
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 583228250  163 ----------------------------------------DQLESKLKKIFGDIYNELTNgrNGVKDHYQDDNGGNYFQL 202
Cdd:PTZ00176  163 sivnnhpdkdkssvctalarsfadigdivrgkdmfkrnkhDNVENGLREVFKKIYEGLKN--NGAREHYKEVKNGNYIKL 240
                         250       260       270       280       290       300       310       320
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 583228250  203 REDWWTANRATVWKAITCKADTgNAYFRPTCSNRQGPSQ-AHHYCRCNGDkpdddkpnTDPPTyFDYVPQYLRWFEEWAE 281
Cdd:PTZ00176  241 REDWWTANRDQVWKAMTCVAPE-NAYFRKTEADGIGISSlILPYSKCGRD--------TDPPV-VDYIPQRLRWMSEWSE 310
                         330       340       350       360       370       380       390       400
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 583228250  282 DFCRKKKIYVGIVKTYCRekyksgneprycsrngyDCTKTKRAIGKYRmGNQCISCLYACNPYVDWINNQKEQFDKQKQK 361
Cdd:PTZ00176  311 YFCNVLNKEIDEMNNQCK-----------------DCEMSRRCNNDTE-GEKCKKCKEQCQIFKELVSKWKNQFDKQSMK 372
                         410       420       430
                  ....*....|....*....|....*....|.
gi 583228250  362 YdkeIKIYKNGASGIRRQKrgTTTKYEGYEK 392
Cdd:PTZ00176  373 Y---MELYNKASTNITKQN--SSAPERGYRR 398
Duffy_binding pfam05424
Duffy binding domain; This domain is found in Plasmodium Duffy binding proteins. Plasmodium ...
922-1128 1.18e-34

Duffy binding domain; This domain is found in Plasmodium Duffy binding proteins. Plasmodium vivax and Plasmodium knowlesi merozoites invade human erythrocytes that express Duffy blood group surface determinants. The Duffy receptor family is localized in micronemes, an organelle found in all organizms of the phylum Apicomplexa. This family is closely associated on PfEMP1 proteins with PFEMP, pfam03011.


Pssm-ID: 428465 [Multi-domain]  Cd Length: 178  Bit Score: 131.63  E-value: 1.18e-34
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 583228250   922 ICVPPRRRKLYLGGFKRLTDGTAVSSEAtqagtpsqspkgdalLLTAFVETAAVETFFLWHkykqekkkpknevggaagv 1001
Cdd:pfam05424    1 ACAPPRRLHLCVKNLEKINSGNTTTTHD---------------LLKAVILAAKYEGFSLWH------------------- 46
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 583228250  1002 lqtiggtlensgeQNPQKKLQEsGEIPDDFLRQMFYTLGDYRDILVrgvaddkngGNNIILnasGNKEDmekmKKIQQEI 1081
Cdd:pfam05424   47 -------------KYKKKNTKY-GDIPSEFCRQMAYSFADIGDIIR---------GKDLYL---GNNKK----KKLEENL 96
                          170       180       190       200
                   ....*....|....*....|....*....|....*....|....*....
gi 583228250  1082 DKILEKSGSEAASGAQK--NSGISREKWWDKHAPSIWDGMVCALTYNTD 1128
Cdd:pfam05424   97 KKIFKKIYEKLTSKGKDdgNYYQLREDWWEANREDIWKAMTCALTYGAK 145
CIDR1_gamma pfam18562
Cysteine-Rich Interdomain Region 1 gamma; Rosetting is the capacity of infected RBCs to bind ...
1427-1479 6.61e-18

Cysteine-Rich Interdomain Region 1 gamma; Rosetting is the capacity of infected RBCs to bind uninfected RBCs, which is consistently associated with severe malaria in African children. The rosette-forming PfEMP1 adhesins, namely IT4/R29, Palo Alto 89F5 VarO, 3D7/PF13_0003 and IT4/var60, belong to a specific sub-group called groupA/UpsA var genes and all four present a specific Duffy Binding-Like and and Cysteine-Rich Interdomain Region (DBL1alpha1-CIDR1gamma) double domain Head region found at the extracellular region of PfEMP1. This entry represents the CIDR1gamma domain which increases the binding affinity to VarO (Palo Alto VarO parasites).


Pssm-ID: 408346  Cd Length: 52  Bit Score: 79.24  E-value: 6.61e-18
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|...
gi 583228250  1427 STVLDMRVIDDSATGFkGDGLEEaCGSANIFKGIRKEQWKCGKVCGYNVCKPK 1479
Cdd:pfam18562    1 TTTIDMLVSDNRGIKF-ENDLKE-CKEAGIFKGIRKDQWKCGKVCGYDVCKLK 51
NTS pfam15447
N-terminal segments of PfEMP1; This family, the N-terminal segment, is the most variable part ...
15-51 4.18e-11

N-terminal segments of PfEMP1; This family, the N-terminal segment, is the most variable part of the variant surface antigen family of Plasmodium falciparum, the erythrocyte membrane protein-1 (PfEMP1) proteins. PfEMP1 is an important target for protective immunity and is implicated in the pathology of malaria through its ability to adhere to host endothelial receptors. A structural and functional study of the N-terminal domain of PfEMP1 from the VarO variant comprising the N-terminal segment (NTS) and the first DBL domain (DBL1alpha1), shows this region is directly implicated in rosetting. NTS, previously thought to be a structurally independent component of PfEMP1, forms an integral part of the DBL1alpha domain that is found to be the important heparin-binding site. This family is closely associated with PFEMP, pfam03011, and Duffy_binding, pfam05424.


Pssm-ID: 406013 [Multi-domain]  Cd Length: 36  Bit Score: 59.33  E-value: 4.18e-11
                           10        20        30
                   ....*....|....*....|....*....|....*..
gi 583228250    15 DAKDLLDMIGKDVHDQVEKEAAgRGGSELKGLLSLAK 51
Cdd:pfam15447    1 SAKHLLDRIGKDVHDKVKKEAK-RYKSELKGDLSKAK 36
PTZ00176 PTZ00176
erythrocyte membrane protein 1 (PfEMP1); Provisional
175-304 9.52e-08

erythrocyte membrane protein 1 (PfEMP1); Provisional


Pssm-ID: 140204 [Multi-domain]  Cd Length: 1317  Bit Score: 57.74  E-value: 9.52e-08
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 583228250  175 DIYNELTNGRNGVKDHYQDDNGGNYFQLREDWWTANRATVWKAITCKADTGNayfrptcSNRQGPSQAhhycrCNgdKPD 254
Cdd:PTZ00176  597 DMMNDLKKLNKELNTLLKETEKGDISVDRKTWWDDNKNVVWNAMLCGYKTEN-------ENQQLNSSW-----CN--VPD 662
                          90       100       110       120       130
                  ....*....|....*....|....*....|....*....|....*....|....*
gi 583228250  255 DDkpntdpptyfdYVPQYLRWFEEWAEDFCRKKKIYVGIVKTYCRE-----KYKS 304
Cdd:PTZ00176  663 DD-----------NIDQFLRWLTEWAQQYCKEKLIKAHIINTKCKDivegrKHKS 706
 
Name Accession Description Interval E-value
ATS pfam15445
acidic terminal segments, variant surface antigen of PfEMP1; ATS is the intracellular and ...
1763-2211 0e+00

acidic terminal segments, variant surface antigen of PfEMP1; ATS is the intracellular and relatively conserved acidic terminal segment of the Plasmodium falciparum erythrocyte membrane protein-1 (PfEMP1). this domain appears to be present in all variants of the highly polymorphic PfEMP1 proteins.


Pssm-ID: 373851 [Multi-domain]  Cd Length: 446  Bit Score: 764.74  E-value: 0e+00
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 583228250  1763 TLAWSVGIGFAAFTYFYLK------------VLYILRIDYDIPTLKSSNRYIPYASDRYKGKTYIYMEGDSSGDEKYAFM 1830
Cdd:pfam15445    1 TIPWSVGIAFAAFTYFFLKkktkssvgnlfqILQIPKGDYDIPTLKSKNRYIPYASDRYKGKTYIYMEGDSSGDEKYAFM 80
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 583228250  1831 SDTTDVTSSESEYEELDINDIYVPGSPKYKTLIEVVLEPSGNNTPT-----SDIPSDNTPTPQPITDDEWNQLKKDFISN 1905
Cdd:pfam15445   81 SDTTDITSSESEYEELDINDIYVPGSPKYKTLIEVVLEPSKNNTNTpsdtqNDIPSDDIPSTNKITDEEWNTLKHDFISN 160
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 583228250  1906 MLQNTQNTEPNILHD-NVDNNTHP-TMSRHNMDQKPFIMSIHDRNLFSGEEYNYdmfnsgnnpiNISDSTNSMDSLtsnn 1983
Cdd:pfam15445  161 MLQNTQNDEPNILHSgNVPNNTHPnTLSRDNMEEKPFIMSIHDRNLYTGEEYSY----------NINMSTNSMDDI---- 226
                          250       260       270       280       290       300       310       320
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 583228250  1984 hsPYNDKNDLYSGIDLINDALSGN-HIDIYDEMLKRKENELFGTqHHPKNiTSNRVVTQTSSDDPITNQINLFHKWLDRH 2062
Cdd:pfam15445  227 --PKYVSNNVYSGIDLINDTLSGNqHIDIYDEVLKRKENELFGT-NHTKH-TSTNSVAKNTNSDPILNQLNLFHKWLDRH 302
                          330       340       350       360       370       380       390       400
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 583228250  2063 RDMCEKWKNNHERLPKLKELWENET-HSGDINS--GIPSGNHVLNTDVSIQIDMDNPKTMNEFTNMDTNPDKSTMDTILD 2139
Cdd:pfam15445  303 RDMCEKWKNKEERLDKLKEEWNKENnHSGDIHPsdDIPSDNKVLNTDVSIQIDMDNPKPKNEFTNMDTNPDNSTMDTILD 382
                          410       420       430       440       450       460       470
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|..
gi 583228250  2140 DLEKYNEPyYYDFYKHDIYYDVNDDkasedhinmDHNKMDNNNSDVPTKVQIEMNViNNQELLQNEYPISHM 2211
Cdd:pfam15445  383 DLEKYNEP-YYDIYEDDIYYDVNDH---------DASTVDSNNMDVPSKVQIEMDV-NNTKLVEEKYPISDV 443
PTZ00176 PTZ00176
erythrocyte membrane protein 1 (PfEMP1); Provisional
1780-2209 1.14e-148

erythrocyte membrane protein 1 (PfEMP1); Provisional


Pssm-ID: 140204 [Multi-domain]  Cd Length: 1317  Bit Score: 498.79  E-value: 1.14e-148
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 583228250 1780 LKVLYILRIDYDIPTLKSSNRYIPYASDRYKGKTYIYMEGDSSgDEKYAFMSDTTDVTSSESEYEELDINDIYVPGSPKY 1859
Cdd:PTZ00176  919 IRILQMSQNEYGIPTTKSPNKYVPYGSQRYKGKTYLYVEGDTD-EEKYMFMSDTTDITSSESEYEEMDINDIYVPGSPKY 997
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 583228250 1860 KTLIEVVLEPSGNNTPTsDIPSDNTPTPQpITDDEWNQLKKDFISNMLQNTQNTEpNILHDNVDNNTHPTMSRH-NMDQK 1938
Cdd:PTZ00176  998 KTLIEVVLEPSKRDTQN-DIPSDNTPSYK-LTDEEWNQLKDDFISQYLPNTEPNN-NYRSGNSPTNTNNTTTSHdNMGEK 1074
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 583228250 1939 PFIMSIHDRNLFSGEEYNYdmfnsgnnpiNISDSTNSMDSltsnnhsPYNDKNDLYSGIDLINDALSGN-HIDIYDEMLK 2017
Cdd:PTZ00176 1075 PFIMSIHDRNLYTGEEISY----------NINMSTNTMDD-------PKYVSNNVYSGIDLINDTLSGNqHIDIYDEVLK 1137
                         250       260       270       280       290       300       310       320
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 583228250 2018 RKENELFGTqHHPKNITSNRVVTQTSSDDPITNQINLFHKWLDRHRDMCEKWKNNHERLPKLKELWENETHSGDinsgIP 2097
Cdd:PTZ00176 1138 RKENELFGT-NHVKQTSIHSVAKNTYSDDAITNKINLFHKWLDRHRDMCEKWENHHERLAKLKEKWENDNDGGN----VP 1212
                         330       340       350       360       370       380       390       400
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 583228250 2098 SGNHVLNTDVSIQIDMDNPKTMNEFTNMDTNPDKSTMDTILDdlekynepyyydfykhDIYYDVNDDKASEDH-----IN 2172
Cdd:PTZ00176 1213 SDNHVLNTDVSIEIDMDNPKPINQFSNMDINVDTPTMDNMED----------------DIYYDVNDNDDDNDQpsvydIP 1276
                         410       420       430
                  ....*....|....*....|....*....|....*....
gi 583228250 2173 MDHNKMDnnnSDVPTKVQIEMNVINNQE--LLQNEYPIS 2209
Cdd:PTZ00176 1277 MDHNKVD---VDVPKKVHIEMKILNNTSngSLEQQFPIS 1312
PFEMP pfam03011
PFEMP1 DBL domain; PfEMP1 (Plasmodium falciparum erythrocyte membrane protein) has been ...
1502-1648 4.86e-53

PFEMP1 DBL domain; PfEMP1 (Plasmodium falciparum erythrocyte membrane protein) has been identified as the rosetting ligand of the malaria parasite P. falciparum. Rosetting is the adhesion of infected erythrocytes with uninfected erythrocytes in the vasculature of the infected organ, and is associated with severe malaria. PfEMP1 interacts with Complement Receptor One on uninfected erythrocytes to form rosettes. The extreme variation within these proteins and the grouping of var genes implies that var gene recombination preferentially occurs within var gene groups. These groups reflect a functional diversification that has evolved to cope with the varying conditions of transmission and host immune response met by the parasite. A recombination hotspot was uncovered between Duffy-binding-like (DBL) subdomains. Solution of the crystal structure of the N-terminal and first DBL region of PfEMP1 from the VarO variant of the PfEMP1 protein is found to be directly implicated in rosetting as the heparin-binding site.


Pssm-ID: 281064  Cd Length: 154  Bit Score: 183.47  E-value: 4.86e-53
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 583228250  1502 LVTHWVQNFLEDYKKIKHKISHCTKTDQGSTCQNKCQNKCKCVGEWIKLKQQEWEEIKKRFLNQYK------MDSDEYYP 1575
Cdd:pfam03011    1 LFKRWVEYFLEDSIKWRKKLKSCINNGKGKCCKKECKNDCECFKKWVEKKKEEWKKIKEHFLKQYKlkgltgKTLDEYLD 80
                           90       100       110       120       130       140       150
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....
gi 583228250  1576 VRSVLETFLVQIGAANANNDVKKLIKLSEFYKSCGCSAKTNSE-NNKNEDAIDCMLDKLGKKAEKCHDQHSDNP 1648
Cdd:pfam03011   81 LKSFLETFLFYIDIKEAYGDVKELKKLEEILDEEGCSAGAESAkNNKNEDAIDKLLDKEEKKANNCKEKHKEND 154
Duffy_binding pfam05424
Duffy binding domain; This domain is found in Plasmodium Duffy binding proteins. Plasmodium ...
122-274 8.70e-50

Duffy binding domain; This domain is found in Plasmodium Duffy binding proteins. Plasmodium vivax and Plasmodium knowlesi merozoites invade human erythrocytes that express Duffy blood group surface determinants. The Duffy receptor family is localized in micronemes, an organelle found in all organizms of the phylum Apicomplexa. This family is closely associated on PfEMP1 proteins with PFEMP, pfam03011.


Pssm-ID: 428465 [Multi-domain]  Cd Length: 178  Bit Score: 175.15  E-value: 8.70e-50
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 583228250   122 ACAPYRRLFLCNKNMEKMGRT-STTKHDLLLDVCMAANYEAQ-------------------------------------- 162
Cdd:pfam05424    1 ACAPPRRLHLCVKNLEKINSGnTTTTHDLLKAVILAAKYEGFslwhkykkkntkygdipsefcrqmaysfadigdiirgk 80
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 583228250   163 ---------DQLESKLKKIFGDIYNELTNGRNgvkdhyqddNGGNYFQLREDWWTANRATVWKAITCKADTGNAYFRPTC 233
Cdd:pfam05424   81 dlylgnnkkKKLEENLKKIFKKIYEKLTSKGK---------DDGNYYQLREDWWEANREDIWKAMTCALTYGAKYFRKTC 151
                          170       180       190       200
                   ....*....|....*....|....*....|....*....|.
gi 583228250   234 SNRQGPSQAHHycrcngdkpdddkpNTDPPTYFDYVPQYLR 274
Cdd:pfam05424  152 GDGISPSTAGC--------------NDDVPTYFDYVPQFLR 178
PFEMP pfam03011
PFEMP1 DBL domain; PfEMP1 (Plasmodium falciparum erythrocyte membrane protein) has been ...
623-771 1.74e-46

PFEMP1 DBL domain; PfEMP1 (Plasmodium falciparum erythrocyte membrane protein) has been identified as the rosetting ligand of the malaria parasite P. falciparum. Rosetting is the adhesion of infected erythrocytes with uninfected erythrocytes in the vasculature of the infected organ, and is associated with severe malaria. PfEMP1 interacts with Complement Receptor One on uninfected erythrocytes to form rosettes. The extreme variation within these proteins and the grouping of var genes implies that var gene recombination preferentially occurs within var gene groups. These groups reflect a functional diversification that has evolved to cope with the varying conditions of transmission and host immune response met by the parasite. A recombination hotspot was uncovered between Duffy-binding-like (DBL) subdomains. Solution of the crystal structure of the N-terminal and first DBL region of PfEMP1 from the VarO variant of the PfEMP1 protein is found to be directly implicated in rosetting as the heparin-binding site.


Pssm-ID: 281064  Cd Length: 154  Bit Score: 164.59  E-value: 1.74e-46
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 583228250   623 FFNFWVAHMLKDSIHWRtKKIKGCLKNGKAIKCTDKCKGDCKCFERWVEQKREEWTNIKEHFGKQTDIPtGLTPDALLEG 702
Cdd:pfam03011    1 LFKRWVEYFLEDSIKWR-KKLKSCINNGKGKCCKKECKNDCECFKKWVEKKKEEWKKIKEHFLKQYKLK-GLTGKTLDEY 78
                           90       100       110       120       130       140       150
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*.
gi 583228250   703 V-----LEKGVLLTSIKEAYGDAKETEHIKQLLDETAVAGGVVVGA--KDNTTIDKLLEQELKDANRCKNCEQRKP 771
Cdd:pfam03011   79 LdlksfLETFLFYIDIKEAYGDVKELKKLEEILDEEGCSAGAESAKnnKNEDAIDKLLDKEEKKANNCKEKHKEND 154
PTZ00176 PTZ00176
erythrocyte membrane protein 1 (PfEMP1); Provisional
12-392 4.42e-42

erythrocyte membrane protein 1 (PfEMP1); Provisional


Pssm-ID: 140204 [Multi-domain]  Cd Length: 1317  Bit Score: 170.22  E-value: 4.42e-42
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 583228250   12 SAKDAKDLLDMIGKDVHDQVEKEAagRGGSELKGLLS-------LAKGSGVELAAFPEPCGLI-KDKGDELLGDSGERHP 83
Cdd:PTZ00176   11 SKLSARNVLENIGNEIKDKRENES--KYTDKLKGSLWearfsdgLSSSFGDVRSGYYDSCSLDhKFHTNINNGYPPARNP 88
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 583228250   84 CGNttgkEDVDRFSVKQQAEYDNKKMKCSygSNGTDVGACAPYRRLFLCNKNMEKMGRTST-TKHDLLLDVCMAANYEAQ 162
Cdd:PTZ00176   89 CDG----RNQNRFDENGESYCNSDKIRGN--ENNSNAGACAPFRRQNMCDKNLEYLINKNTeNTHDLLGNVLVTAKYEGE 162
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 583228250  163 ----------------------------------------DQLESKLKKIFGDIYNELTNgrNGVKDHYQDDNGGNYFQL 202
Cdd:PTZ00176  163 sivnnhpdkdkssvctalarsfadigdivrgkdmfkrnkhDNVENGLREVFKKIYEGLKN--NGAREHYKEVKNGNYIKL 240
                         250       260       270       280       290       300       310       320
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 583228250  203 REDWWTANRATVWKAITCKADTgNAYFRPTCSNRQGPSQ-AHHYCRCNGDkpdddkpnTDPPTyFDYVPQYLRWFEEWAE 281
Cdd:PTZ00176  241 REDWWTANRDQVWKAMTCVAPE-NAYFRKTEADGIGISSlILPYSKCGRD--------TDPPV-VDYIPQRLRWMSEWSE 310
                         330       340       350       360       370       380       390       400
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 583228250  282 DFCRKKKIYVGIVKTYCRekyksgneprycsrngyDCTKTKRAIGKYRmGNQCISCLYACNPYVDWINNQKEQFDKQKQK 361
Cdd:PTZ00176  311 YFCNVLNKEIDEMNNQCK-----------------DCEMSRRCNNDTE-GEKCKKCKEQCQIFKELVSKWKNQFDKQSMK 372
                         410       420       430
                  ....*....|....*....|....*....|.
gi 583228250  362 YdkeIKIYKNGASGIRRQKrgTTTKYEGYEK 392
Cdd:PTZ00176  373 Y---MELYNKASTNITKQN--SSAPERGYRR 398
Duffy_binding pfam05424
Duffy binding domain; This domain is found in Plasmodium Duffy binding proteins. Plasmodium ...
922-1128 1.18e-34

Duffy binding domain; This domain is found in Plasmodium Duffy binding proteins. Plasmodium vivax and Plasmodium knowlesi merozoites invade human erythrocytes that express Duffy blood group surface determinants. The Duffy receptor family is localized in micronemes, an organelle found in all organizms of the phylum Apicomplexa. This family is closely associated on PfEMP1 proteins with PFEMP, pfam03011.


Pssm-ID: 428465 [Multi-domain]  Cd Length: 178  Bit Score: 131.63  E-value: 1.18e-34
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 583228250   922 ICVPPRRRKLYLGGFKRLTDGTAVSSEAtqagtpsqspkgdalLLTAFVETAAVETFFLWHkykqekkkpknevggaagv 1001
Cdd:pfam05424    1 ACAPPRRLHLCVKNLEKINSGNTTTTHD---------------LLKAVILAAKYEGFSLWH------------------- 46
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 583228250  1002 lqtiggtlensgeQNPQKKLQEsGEIPDDFLRQMFYTLGDYRDILVrgvaddkngGNNIILnasGNKEDmekmKKIQQEI 1081
Cdd:pfam05424   47 -------------KYKKKNTKY-GDIPSEFCRQMAYSFADIGDIIR---------GKDLYL---GNNKK----KKLEENL 96
                          170       180       190       200
                   ....*....|....*....|....*....|....*....|....*....
gi 583228250  1082 DKILEKSGSEAASGAQK--NSGISREKWWDKHAPSIWDGMVCALTYNTD 1128
Cdd:pfam05424   97 KKIFKKIYEKLTSKGKDdgNYYQLREDWWEANREDIWKAMTCALTYGAK 145
CIDR1_gamma pfam18562
Cysteine-Rich Interdomain Region 1 gamma; Rosetting is the capacity of infected RBCs to bind ...
1427-1479 6.61e-18

Cysteine-Rich Interdomain Region 1 gamma; Rosetting is the capacity of infected RBCs to bind uninfected RBCs, which is consistently associated with severe malaria in African children. The rosette-forming PfEMP1 adhesins, namely IT4/R29, Palo Alto 89F5 VarO, 3D7/PF13_0003 and IT4/var60, belong to a specific sub-group called groupA/UpsA var genes and all four present a specific Duffy Binding-Like and and Cysteine-Rich Interdomain Region (DBL1alpha1-CIDR1gamma) double domain Head region found at the extracellular region of PfEMP1. This entry represents the CIDR1gamma domain which increases the binding affinity to VarO (Palo Alto VarO parasites).


Pssm-ID: 408346  Cd Length: 52  Bit Score: 79.24  E-value: 6.61e-18
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|...
gi 583228250  1427 STVLDMRVIDDSATGFkGDGLEEaCGSANIFKGIRKEQWKCGKVCGYNVCKPK 1479
Cdd:pfam18562    1 TTTIDMLVSDNRGIKF-ENDLKE-CKEAGIFKGIRKDQWKCGKVCGYDVCKLK 51
NTS pfam15447
N-terminal segments of PfEMP1; This family, the N-terminal segment, is the most variable part ...
15-51 4.18e-11

N-terminal segments of PfEMP1; This family, the N-terminal segment, is the most variable part of the variant surface antigen family of Plasmodium falciparum, the erythrocyte membrane protein-1 (PfEMP1) proteins. PfEMP1 is an important target for protective immunity and is implicated in the pathology of malaria through its ability to adhere to host endothelial receptors. A structural and functional study of the N-terminal domain of PfEMP1 from the VarO variant comprising the N-terminal segment (NTS) and the first DBL domain (DBL1alpha1), shows this region is directly implicated in rosetting. NTS, previously thought to be a structurally independent component of PfEMP1, forms an integral part of the DBL1alpha domain that is found to be the important heparin-binding site. This family is closely associated with PFEMP, pfam03011, and Duffy_binding, pfam05424.


Pssm-ID: 406013 [Multi-domain]  Cd Length: 36  Bit Score: 59.33  E-value: 4.18e-11
                           10        20        30
                   ....*....|....*....|....*....|....*..
gi 583228250    15 DAKDLLDMIGKDVHDQVEKEAAgRGGSELKGLLSLAK 51
Cdd:pfam15447    1 SAKHLLDRIGKDVHDKVKKEAK-RYKSELKGDLSKAK 36
PTZ00176 PTZ00176
erythrocyte membrane protein 1 (PfEMP1); Provisional
175-304 9.52e-08

erythrocyte membrane protein 1 (PfEMP1); Provisional


Pssm-ID: 140204 [Multi-domain]  Cd Length: 1317  Bit Score: 57.74  E-value: 9.52e-08
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 583228250  175 DIYNELTNGRNGVKDHYQDDNGGNYFQLREDWWTANRATVWKAITCKADTGNayfrptcSNRQGPSQAhhycrCNgdKPD 254
Cdd:PTZ00176  597 DMMNDLKKLNKELNTLLKETEKGDISVDRKTWWDDNKNVVWNAMLCGYKTEN-------ENQQLNSSW-----CN--VPD 662
                          90       100       110       120       130
                  ....*....|....*....|....*....|....*....|....*....|....*
gi 583228250  255 DDkpntdpptyfdYVPQYLRWFEEWAEDFCRKKKIYVGIVKTYCRE-----KYKS 304
Cdd:PTZ00176  663 DD-----------NIDQFLRWLTEWAQQYCKEKLIKAHIINTKCKDivegrKHKS 706
 
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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