Table 2.

Mutations in gp120 of the SDF-1αr e s virus

Amino acid position (region)Wild-type virusSDF-1αres virus
CodonAmino acidCodonAmino acid
106 (V1)AATNAAGK
134 (V2)AGCSAACN
145 (V2)a TTCFTTAL
245 (C2)TTCFATCI
269 (V3)a AAC/AAAN (K)GAAE
278 (V3)a CAGQCATH
288 (V3)a ATAIGTCV
293 (V3)a AATNGATD
Δ364–368a TTT AAT AGT ACT TGGFNSTWDeletionDeletion
387 (V4)AGARACAT
  • a Mutations that were also present in the AMD3100res virus (18).