6/6/2023 0 Comments W d gann cycle peter tacA stretch of noncoding sequences separates the gag and the pol genes. However, the HTL V genome also contains some specific features not shared with all other retroviruses: the LTR regions are unusually long (745 base pairs, with 298 base pairs constituting the R region), but unlike the long L TRs of mouse mammary tumor viruses, they do not contain open reading frames. Characteristic features in common with the genome of other retroviruses: long terminal repeats (L TR), and coding regions for internal proteins (gag), for re verse transcriptase (pol), and for glycosylated virion surface proteins (env), ar ranged in the sequence gag, pol, env from the 5' to the 3' end of the genome.
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