FIG. 6.
Comparison of amino sequences of gp90 derived from clones obtained during asymptomatic stages of infection. Deduced amino acid (AA) sequences recovered from viral RNA purified from supernatants of MDM taken at 800 dpi from ponies 562, 564 and 567 are compared to the EIAVPV sequence. Only residues different from those in EIAVPV are shown. Dots indicate identical residues, dashes indicate deletions of residues; underlined amino acids indicate potential N-glycosylation sites (NXS/T); triangles indicate newly created potential N-glycosylation sites. Previously described variable regions V1 through V8 (16) are boxed. The PND with the major neutralizing epitopes (ENT and DNT; delineated by gray boxes) localized in the V3 region (2) is indicated by a black line. For each pony, only clones with different sequences are represented.