6wtv

From Proteopedia

Jump to: navigation, search

Plasmodium vivax reticulocyte binding protein 2b (PvRBP2b) bound to human monoclonal antibody 258259

Structural highlights

6wtv is a 12 chain structure with sequence from Homo sapiens and Plasmodium vivax Sal-1. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:X-ray diffraction, Resolution 3.05Å
Resources:FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

A5K736_PLAVS

Publication Abstract from PubMed

Plasmodium vivax preferentially invades reticulocytes and recognition of these cells is mediated by P. vivax Reticulocyte Binding Protein 2b (PvRBP2b) binding to human Transferrin receptor 1 (TfR1) and Transferrin (Tf). Longitudinal cohort studies in Papua New Guinea, Thailand and Brazil show that PvRBP2b antibodies are correlated with protection against P. vivax infection and disease. Here, we isolate and characterize anti-PvRBP2b human monoclonal antibodies from two individuals in Cambodia with natural P. vivax infection. These antibodies bind with high affinities and map to different regions of PvRBP2b. Several human antibodies block PvRBP2b binding to reticulocytes and inhibit complex formation with human TfR1-Tf. We describe different structural mechanisms for functional inhibition, including either steric hindrance with TfR1-Tf or the reticulocyte membrane. These results show that naturally acquired human antibodies against PvRBP2b can inhibit its function which is important for P. vivax invasion.

Naturally acquired blocking human monoclonal antibodies to Plasmodium vivax reticulocyte binding protein 2b.,Chan LJ, Gandhirajan A, Carias LL, Dietrich MH, Vadas O, Visentin R, Franca CT, Menant S, Soldati-Favre D, Mueller I, King CL, Tham WH Nat Commun. 2021 Mar 9;12(1):1538. doi: 10.1038/s41467-021-21811-2. PMID:33750786[1]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

Loading citation details..
No citations found

See Also

References

  1. Chan LJ, Gandhirajan A, Carias LL, Dietrich MH, Vadas O, Visentin R, França CT, Menant S, Soldati-Favre D, Mueller I, King CL, Tham WH. Naturally acquired blocking human monoclonal antibodies to Plasmodium vivax reticulocyte binding protein 2b. Nat Commun. 2021 Mar 9;12(1):1538. PMID:33750786 doi:10.1038/s41467-021-21811-2

Contents


PDB ID 6wtv

Drag the structure with the mouse to rotate

Proteopedia Page Contributors and Editors (what is this?)

OCA

Personal tools