Probable methyltransferase TARBP1 is an enzyme that in humans is encoded by the TARBP1gene.[1][2]
HIV-1, the causative agent of acquired immunodeficiency syndrome (AIDS), contains an RNA genome that produces a chromosomally integrated DNA during the replicative cycle. Activation of HIV-1 gene expression by the transactivator Tat is dependent on an RNA regulatory element (TAR) located downstream of the transcription initiation site. This element forms a stable stem-loop structure and can be bound by either the protein encoded by this gene or by RNA polymerase II. This protein may act to disengage RNA polymerase II from TAR during transcriptional elongation. Alternatively spliced transcripts of this gene may exist, but their full-length natures have not been determined.[2]
References
↑Wu F, Garcia J, Sigman D, Gaynor R (Dec 1991). "tat regulates binding of the human immunodeficiency virus trans-activating region RNA loop-binding protein TRP-185". Genes Dev. 5 (11): 2128–40. doi:10.1101/gad.5.11.2128. PMID1936997.
Sheline CT, Milocco LH, Jones KA (1992). "Two distinct nuclear transcription factors recognize loop and bulge residues of the HIV-1 TAR RNA hairpin". Genes Dev. 5 (12B): 2508–20. doi:10.1101/gad.5.12b.2508. PMID1752441.
Wu-Baer F, Lane WS, Gaynor RB (1996). "Identification of a group of cellular cofactors that stimulate the binding of RNA polymerase II and TRP-185 to human immunodeficiency virus 1 TAR RNA". J. Biol. Chem. 271 (8): 4201–8. doi:10.1074/jbc.271.8.4201. PMID8626763.
Yedavalli VS, Benkirane M, Jeang KT (2003). "Tat and trans-activation-responsive (TAR) RNA-independent induction of HIV-1 long terminal repeat by human and murine cyclin T1 requires Sp1". J. Biol. Chem. 278 (8): 6404–10. doi:10.1074/jbc.M209162200. PMID12458222.
Ota T, Suzuki Y, Nishikawa T, et al. (2004). "Complete sequencing and characterization of 21,243 full-length human cDNAs". Nat. Genet. 36 (1): 40–5. doi:10.1038/ng1285. PMID14702039.
Gregory SG, Barlow KF, McLay KE, et al. (2006). "The DNA sequence and biological annotation of human chromosome 1". Nature. 441 (7091): 315–21. doi:10.1038/nature04727. PMID16710414.