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. 2005 Apr;79(8):4774–4781. doi: 10.1128/JVI.79.8.4774-4781.2005

FIG. 1.

FIG. 1.

Map of gp41 ectodomain and corresponding peptides. The JR-CSF Nw peptide corresponds to wild-type residues in the N-HR in the JR-CSF envelope glycoprotein. a and d indicate positions in the heptad repeat motif. N44* represents the peptide used for selecting the resistant virus. The Nm peptide contains the resistance mutation at position 577. HXB2 indicates residues in the HXB2 clone of HIV. The JR-CSF Cw peptide corresponds to wild-type residues in the C-HR in the JR-CSF envelope glycoprotein. The Cm peptide contains the resistance mutation at position 648. The HXB2 C34 peptide corresponds to C-HR residues in the HXB2 clone of HIV. FP, fusion peptide; TM, transmembrane domain; C-tail, cytoplasmic domain.