Antigenic variation in gp120s from molecular clones of HIV-1 LAI. Academic Article uri icon

Overview

abstract

  • To address the relationship between primary sequence variation in HIV-1 gp120 and its antigenic structure in a simple system, we have measured the binding of human and murine monoclonal antibodies (MAbs) to gp120 from four molecular clones of HIV-1 LAI: HxB2, HxB3, Hx10, and NL4-3. Despite the close relationship between these clones, and their relatively conserved gp120 sequences, there is considerable variation in their antigenic structure, judged by MAb reactivities to the V2, V3, and C4 domains and to discontinuous epitopes. Because of our prior studies of the determinants of MAb binding to HxB2 gp120, we can make reasonable estimates of how sequence variation among the LAI clone gp120s affects their binding of some MAbs; for other MAbs our current knowledge of gp120 structure is too limited to allow such estimates. These results indicate that small variations in primary gp120 amino acid sequence can profoundly affect recognition of this glycoprotein by all five groups of defined anti-gp120 neutralizing antibodies.

publication date

  • December 1, 1993

Research

keywords

  • HIV Envelope Protein gp120
  • HIV-1

Identity

Scopus Document Identifier

  • 0027787915

Digital Object Identifier (DOI)

  • 10.1089/aid.1993.9.1185

PubMed ID

  • 7511394

Additional Document Info

volume

  • 9

issue

  • 12