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Size Doesn’t Matter: Shorter Antibody Loops Can Infiltrate HIV’s Env Apex Defenses
Jinal N. Bhiman, Penny L. Moore Immunity Volume 46, Issue 5, Pages (May 2017) DOI: /j.immuni Copyright © 2017 Elsevier Inc. Terms and Conditions
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Figure 1 Isolation of the N90-VRC38 V1V2-Directed bNAb Lineage Illustrates a More Attainable Vaccine Target Left: Virus-like particles (purple) displaying HIV envelope trimers (orange) were used by Cale, Gorman et al. in a unique antigen-specific B cell sorting strategy to isolate the VRC38 bNAb lineage (cyan). Middle: Structural studies showed that, unlike prototypic V1V2 bNAbs (blue), VRC38 bNAbs bound to the V1V2 apex on Env trimers, despite possessing non-protruding loops. The angle of approach of the VRC38 antibodies was off center compared to prototypic V1V2 bNAbs. Right: Antibodies with antigen binding loops of average length, like that of the VRC38 bNAbs, are more frequent in the naive B cell pool than those comparable to prototypic V1V2 bNAbs. Thus, VRC38-like bNAbs may represent a more attainable vaccine HIV target. Immunity , DOI: ( /j.immuni ) Copyright © 2017 Elsevier Inc. Terms and Conditions
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