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Sökning: WFRF:(Breslin R)

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1.
  • Thomas, HS, et al. (författare)
  • 2019
  • swepub:Mat__t
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3.
  • Yusuf, D, et al. (författare)
  • The transcription factor encyclopedia
  • 2012
  • Ingår i: Genome biology. - : Springer Science and Business Media LLC. - 1474-760X .- 1465-6906. ; 13:3, s. R24-
  • Tidskriftsartikel (refereegranskat)
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4.
  • Sigvardsson, Mikael, et al. (författare)
  • Early B-Cell Factor, E2A, and Pax-5 Cooperate To Activate the Early B Cell-Specific mb-1 Promoter.
  • 2002
  • Ingår i: Molecular and Cellular Biology. - 0270-7306. ; 22:24, s. 8539-8551
  • Tidskriftsartikel (refereegranskat)abstract
    • Previous studies have suggested that the early-B-cell-specific mb-1(Ig{alpha}) promoter is regulated by EBF and Pax-5. Here, we used in vivo footprinting assays to detect occupation of binding sites in endogenous mb-1 promoters at various stages of B-cell differentiation. In addition to EBF and Pax-5 binding sites, we detected occupancy of a consensus binding site for E2A proteins (E box) in pre-B cells. EBF and E box sites are crucial for promoter function in transfected pre-B cells, and EBF and E2A proteins synergistically activated the promoter in transfected HeLa cells. Other data suggest that EBF and E box sites are less important for promoter function at later stages of differentiation, whereas binding sites for Pax-5 (and its Ets ternary complex partners) are required for promoter function in all mb-1-expressing cells. Using DNA microarrays, we found that expression of endogenous mb-1 transcripts correlates most closely with EBF expression and negatively with Id1, an inhibitor of E2A protein function, further linking regulation of the mb-1 gene with EBF and E2A. Together, our studies demonstrate the complexity of factors regulating tissue-specific transcription and support the concept that EBF, E2A, and Pax-5 cooperate to activate target genes in early B-cell development.
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