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We have identified a conserved region in the C-terminal domain of bromodomain-containing protein 4 (BRD4) that mediates its specific interaction with positive transcription elongation factor b (P-TEFb). This domain is highly conserved in testis-specific bromodomain protein (BRDT) and Drosophila fs(1)h. Both BRDT and fs(1)h specifically interact with P-TEFb(More)
Retinal fatty acid binding protein (R-FABP) is the avian counterpart of murine brain FABP implicated in glial cell differentiation and neuronal cell migration. R-FABP is highly expressed in the undifferentiated retina and brain of chick embryos. We have previously shown by in vitro studies that the AP-2 transcription factor binds to a consensus AP-2 binding(More)
The undifferentiated chick retina has elevated levels of fatty acid binding protein (R-FABP) mRNA. Tissue maturation is accompanied by a 50-100-fold decrease in transcript levels. To determine the location of the R-FABP transcript and its encoded protein in the developing retina, in situ hybridization and immunohistochemical analyses were carried out using(More)
The transcriptional activity of the integrated HIV provirus is dependent on the chromatin organization of the viral promoter and the transactivator Tat. Tat recruits the cellular pTEFb complex and interacts with several chromatin-modifying enzymes, including the histone acetyltransferases p300 and PCAF. Here, we examined the interaction of Tat with(More)
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