Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
The V3 sequences of HIV-1, HIV-2, and SIV known to use CCR5 coreceptor. Parentheses indicate the genetic subtype of HIV-1. The numbers of two cysteine residues of V3 are shown on top. The four residues within V3, which are highly conserved among CCR5-using viruses, are numbered and marked with asterisks on top. The information was derived from references 5–9, 13, 15–20, 32, 35, 40–45. For brevity, viruses that use both CCR5 and CXCR4 are not included.
