Interactions among HIV gp120, CD4, and CXCR4: dependence on CD4 expression level, gp120 viral origin, conservation of the gp120 COOH- and NH2-termini and V1/V2 and V3 loops, and sensitivity to neutralizing antibodies.

@article{Mondor1998InteractionsAH,
  title={Interactions among HIV gp120, CD4, and CXCR4: dependence on CD4 expression level, gp120 viral origin, conservation of the gp120 COOH- and NH2-termini and V1/V2 and V3 loops, and sensitivity to neutralizing antibodies.},
  author={Isabelle Mondor and Maxime Moulard and Sophie Ugolini and Per Johan Klasse and James A Hoxie and Ali Amara and Thierry Delaunay and Richard Wyatt and Joseph Sodroski and Quentin J Sattentau},
  journal={Virology},
  year={1998},
  volume={248 2},
  pages={394-405}
}
The binding of HIV-derived recombinant soluble (s)gp120 to the CD4(+)/CXCR4(+) A3.01 T cell line inhibits the binding of the CXCR4-specific monoclonal antibodies 12G5, which interacts with the second extracellular loop, and 6H8, which binds the NH2 terminus. We have used this as an assay to analyse the interaction of recombinant sgp120 from diverse viral origins with CXCR4. The strength of the interaction between sgp120 and CXCR4 correlated with sgp120 affinity for the CD4-CXCR4 complex, and… CONTINUE READING
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