6ucf

N123-VRC34_pI4 HIV neutralizing antibody in complex with HIV fusion peptide residue 512-519

spinqualitylabelsall models 6ucf, resolution 1.29Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 6ucf is a 3 chain structure with sequence from Homo sapiens and Human immunodeficiency virus 1. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Method: X-ray diffraction, Resolution 1.29Å Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Publication Abstract from PubMed Rare mutations have been proposed to restrict the development of broadly neutralizing antibodies against HIV-1, but this has not been explicitly demonstrated. We hypothesized that such rare mutations might be identified by comparing broadly neutralizing and non-broadly neutralizing branches of an antibody-developmental tree. Because sequences of antibodies isolated from the fusion peptide (FP)-targeting VRC34-antibody lineage suggested it might be suitable for such rare mutation analysis, we carried out next-generation sequencing (NGS) on B cell transcripts from donor N123, the source of the VRC34 lineage, and functionally and structurally characterized inferred intermediates along broadly neutralizing and poorly neutralizing developmental branches. The broadly neutralizing VRC34.01 branch required the rare heavy-chain mutation Y33P to bind FP, whereas the early bifurcated VRC34.05 branch did not require this rare mutation and evolved less breadth. Our results demonstrate how a required rare mutation can restrict development and shape the maturation of a broad HIV-1-neutralizing antibody lineage. VRC34-Antibody Lineage Development Reveals How a Required Rare Mutation Shapes the Maturation of a Broad HIV-Neutralizing Lineage.,Shen CH, DeKosky BJ, Guo Y, Xu K, Gu Y, Kilam D, Ko SH, Kong R, Liu K, Louder MK, Ou L, Zhang B, Chao CW, Corcoran MM, Feng E, Huang J, Normandin E, O'Dell S, Ransier A, Rawi R, Sastry M, Schmidt SD, Wang S, Wang Y, Chuang GY, Doria-Rose NA, Lin B, Zhou T, Boritz EA, Connors M, Douek DC, Karlsson Hedestam GB, Sheng Z, Shapiro L, Mascola JR, Kwong PD Cell Host Microbe. 2020 Mar 3. pii: S1931-3128(20)30070-6. doi:, 10.1016/j.chom.2020.01.027. PMID:32130953 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See Also Antibody 3D structures

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