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  • Title: Translation of gag, pro, and pol gene products of human T-cell leukemia virus type 2.
    Author: Mador N, Panet A, Honigman A.
    Journal: J Virol; 1989 May; 63(5):2400-4. PubMed ID: 2467996.
    Abstract:
    Sequence analysis of human T-cell leukemia proviral DNA revealed three open reading frames arranged at a -1 position relative to one another. On the basis of homology to other retroviruses, these open reading frames were assigned to the gag, pro, and pol genes. To characterize the primary protein products of these genes and their modes of synthesis, a DNA clone of human T-cell leukemia virus type 2 was transcribed and translated in vitro. Analysis of the viral proteins revealed three polyproteins with molecular masses of 58, 75, and 112 kilodaltons at relative frequencies of 100:13:0.9, respectively. These proteins were mapped on the viral genome by both internal deletions and 3'-end truncations at gag, pro, and pol, respectively. The results indicate that translation of the pol gene requires two independent frameshift events, and the readthrough frequencies at the two frameshift sites appeared to be similar.
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