Matches in SemOpenAlex for { <https://semopenalex.org/work/W3034272539> ?p ?o ?g. }
- W3034272539 endingPage "144882" @default.
- W3034272539 startingPage "144882" @default.
- W3034272539 abstract "Abstract The 50 kDa N-terminal product of the cellular transcription factor E4F1 (p50E4F1) mediates E1A289R trans-activation of the adenovirus E4 gene, and suppresses E1A-mediated transformation by sensitizing cells to cell death. This report shows that while both E1A289R and E1A243R stimulate p50E4F1 DNA binding activity, E1A289R trans-activation, as measured using GAL-p50E4F1 fusion proteins, involves a p50E4F1 transcription regulatory (TR) region that must be promoter-bound and is dependent upon E1A CR3, CR1 and N-terminal domains. Trans-activation is promoter-specific, as GAL-p50E4F1 did not stimulate commonly used artificial promoters and was strongly repressive when competing against GAL-VP16. p50E4F1 and E1A289R stably associate in vivo using the p50E4F1 TR region and E1A CR3, although their association in vitro is indirect and paradoxically disrupted by MAP kinase phosphorylation of E1A289R, which stimulates E4 trans-activation in vivo. Multiple cellular proteins, including TBP, bind the p50E4F1 TR region in vitro. The mechanistic implications for p50E4F1 function are discussed." @default.
- W3034272539 created "2020-06-19" @default.
- W3034272539 creator A5061415711 @default.
- W3034272539 date "2020-09-01" @default.
- W3034272539 modified "2023-09-24" @default.
- W3034272539 title "Multiple domains in the 50 kDa form of E4F1 regulate promoter-specific repression and E1A trans-activation" @default.
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