Table 1.

Amino acid differences of viruses used in the present studies

VirusaAmino acid position in glycoprotein sequence
nsP3 528E2 1E2 114E1 72
TR339ArgSerSerAla
E2S1GlnSerSerVal
TRSBGlnArgSerVal
TRSB-R114GlnArgArgVal
E2S1-R114GlnSerArgVal
  • ↵a Viruses were derived from cDNA clones that are isogenic except for the indicated loci.