Post transcriptional regulation of HIV-1 gene expression by MATR3, PSF and Rev
نویسندگان
چکیده
منابع مشابه
Dynamic Post-Transcriptional Regulation of HIV-1 Gene Expression
Gene expression of the human immunodeficiency virus type 1 (HIV-1) is a highly regulated process. Basal transcription of the integrated provirus generates early transcripts that encode for the viral products Tat and Rev. Tat promotes the elongation of RNA polymerase while Rev mediates the nuclear export of viral RNAs that contain the Rev-responsive RNA element (RRE). These RNAs are exported fro...
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Post-transcriptional regulation of HIV-1 gene expression is largely governed by the activities of the viral Rev protein. In this minireview, the multiple post-transcriptional activities of Rev in the export of partially spliced and unspliced HIV-1 RNAs from the nucleus to the cytoplasm, in the translation of HIV-1 transcripts, and in the packaging of viral genomic RNAs are reviewed in brief.
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Control of HIV-1 gene expression depends on two viral regulatory proteins, Tat and Rev. Tat stimulates transcription elongation by directing the cellular transcriptional elongation factor P-TEFb to nascent RNA polymerases. Rev is required for the transport from the nucleus to the cytoplasm of the unspliced and incompletely spliced mRNAs that encode the structural proteins of the virus. Molecula...
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Papillomavirus genomes are transcribed as one large complex transcription unit with multiple promoters, two poly(A) sites (early and late), and considerable alternative splicing. As a result, there are multiple opportunities for post-transcriptional regulation of papillomavirus gene expression. Although this area has not been as extensively studied as transcriptional regulation, there are a few...
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Methods We identified several levels of transcriptional and posttranscriptional control of viral genes expression. By looking at the organization of chromatin at the site of integration by chromatin conformation capture and in situ hybridization, we found that chromatin imposes silencing in a highly specific spatial and temporal pattern. We also identified several cellular factors that interact...
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ژورنال
عنوان ژورنال: Retrovirology
سال: 2013
ISSN: 1742-4690
DOI: 10.1186/1742-4690-10-s1-p37