7p5a

Variant Surface Glycoprotein 3 (VSG3, MiTat1.3, VSG224) mutant (serine 317 to alanine), single O-linked glycosylated at Ser319

spinqualitylabelsall models 7p5a, resolution 1.95Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 7p5a is a 1 chain structure with sequence from Trypanosoma brucei brucei. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Method: X-ray diffraction, Resolution 1.95Å Ligands: BMA, GLC, MAN, NAG Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Function B3GVK1_TRYBB Publication Abstract from PubMed The African trypanosome survives the immune response of its mammalian host by antigenic variation of its major surface antigen (the variant surface glycoprotein or VSG). Here we describe the antibody repertoires elicited by different VSGs. We show that the repertoires are highly restricted and are directed predominantly to distinct epitopes on the surface of the VSGs. They are also highly discriminatory; minor alterations within these exposed epitopes confer antigenically distinct properties to these VSGs and elicit different repertoires. We propose that the patterned and repetitive nature of the VSG coat focuses host immunity to a restricted set of immunodominant epitopes per VSG, eliciting a highly stereotyped response, minimizing cross-reactivity between different VSGs and facilitating prolonged immune evasion through epitope variation. Immunodominant surface epitopes power immune evasion in the African trypanosome.,Gkeka A, Aresta-Branco F, Triller G, Vlachou EP, van Straaten M, Lilic M, Olinares PDB, Perez K, Chait BT, Blatnik R, Ruppert T, Verdi JP, Stebbins CE, Papavasiliou FN Cell Rep. 2023 Mar 28;42(3):112262. doi: 10.1016/j.celrep.2023.112262. Epub 2023 , Mar 20. PMID:36943866 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

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