نتایج جستجو برای: histone
تعداد نتایج: 43029 فیلتر نتایج به سال:
1. The capacity of the histone-DNA complex to act as a template for RNA synthesis is increased by phosphorylation of histone F1. 2. In regenerating liver, DNA synthesis is preceded by phosphorylation of histone F1. 3. Exposure to ionizing radiation in vivo decreases and delays the phosphorylation of histone F1 in regenerating liver, and decreases it in the hyperplastic kidney. 4. Histone F1 is ...
In metazoan the 3'-end processing of histone mRNAs is a conserved process involving the concerted action of many protein factors and the non-coding U7 snRNA. Recently, we identified that the processing of histone pre-mRNAs is promoted by an additional ncRNA, the Y3-derived Y3** RNA. U7 modulates the association of the U7 snRNP whereas Y3** promotes recruitment of CPSF (cleavage and polyadenylat...
We have isolated the predominant cytoplasmic histone acetyltransferase activity from Saccharomyces cerevisiae. This enzyme acetylates the lysine at residue 12 of free histone H4 but does not modify histone H4 when packaged in chromatin. The activity contains two proteins, Hat1p and Hat2p. Hat1p is the catalytic subunit of the histone acetyltransferase and has an intrinsic substrate specificity ...
Histone acetylation is a major epigenetic control mechanism that is tightly linked to the promotion of gene expression. Histone acetylation levels are balanced through the opposing activities of histone acetyltransferases (HATs) and histone deacetylases (HDACs). Arabidopsis HDAC genes (AtHDACs) compose a large gene family, and distinct phenotypes among AtHDAC mutants reflect the functional spec...
Plant homeodomain (PHD) fingers have emerged as one of the largest families of epigenetic effectors capable of recognizing or ‘reading’ posttranslational histone modifications and unmodified histone tails. These interactions are highly specific and can be modulated by the neighboring epigenetic marks and adjacent effectors. A few PHD fingers have recently been found to also associate with non-h...
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