acidic terminal segments, variant surface antigen of PfEMP1; ATS is the intracellular and ...
520-977
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: 691.93 E-value: 0e+00
PFEMP1 DBL domain; PfEMP1 (Plasmodium falciparum erythrocyte membrane protein) has been ...
261-402
2.35e-27
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.
The actual alignment was detected with superfamily member pfam03011:
Pssm-ID: 281064 Cd Length: 154 Bit Score: 108.74 E-value: 2.35e-27
Cysteine-Rich Interdomain Region 1 gamma; Rosetting is the capacity of infected RBCs to bind ...
198-249
7.88e-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: 78.08 E-value: 7.88e-18
acidic terminal segments, variant surface antigen of PfEMP1; ATS is the intracellular and ...
520-977
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: 691.93 E-value: 0e+00
PFEMP1 DBL domain; PfEMP1 (Plasmodium falciparum erythrocyte membrane protein) has been ...
261-402
2.35e-27
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: 108.74 E-value: 2.35e-27
Cysteine-Rich Interdomain Region 1 gamma; Rosetting is the capacity of infected RBCs to bind ...
198-249
7.88e-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: 78.08 E-value: 7.88e-18
acidic terminal segments, variant surface antigen of PfEMP1; ATS is the intracellular and ...
520-977
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: 691.93 E-value: 0e+00
PFEMP1 DBL domain; PfEMP1 (Plasmodium falciparum erythrocyte membrane protein) has been ...
261-402
2.35e-27
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: 108.74 E-value: 2.35e-27
Cysteine-Rich Interdomain Region 1 gamma; Rosetting is the capacity of infected RBCs to bind ...
198-249
7.88e-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: 78.08 E-value: 7.88e-18
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.
of the residues that compose this conserved feature have been mapped to the query sequence.
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