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Updated: Aug 12, 2026

Assessment of Immunologically Relevant Dynamic Tertiary Structural Features of the HIV-1 V3 Loop Crown R2 Sequence by ab initio Folding
Published on: September 15, 2010
The T open reading frame of human immunodeficiency virus type 1
E A Cohen1, Y Lu, H Göttlinger
1Division of Human Retrovirology, Dana-Farber Cancer Institute, Boston, Massachusetts 02115.
Abstract:
Sequence analysis of multiple isolates of the human immunodeficiency virus type 1 (HIV-1) reveals the existence of a conserved open reading frame, designated T, that partially overlaps the tat, rev, and vpu coding sequences. Here we show that in vitro translation of RNA derived from this region of the viral genome yields a 17 kDa fusion protein, the result of a minus one frameshift event in the overlap between the tat and T open reading frames. It is also shown that messenger RNA species accumulate in HIV-1 infection from which the 17 kDa protein can be made. These observations suggest that ribosomal frameshift events may result in the biosynthesis of viral regulatory as well as viral structural proteins.
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