Histone H3 (Acetyl Lys37) rabb

组蛋白 Histone Protein

组蛋白是和染色体相联的最主要的蛋白质。它的作用是和染色体中的 DNA 的负电荷结合。组蛋白是比较小的碱性蛋白；在细胞正常 pH 值时，组蛋白带有正电荷，这样它们就可以和 DNA 结合，这个正电荷主要存在于碱性氨基酸 Lys 和 Arg 的 -NH3 上。其实，组蛋白约含 25% 的 Arg 和 Lys 。比其他蛋白的 Arg ， Lys 的含量都多。和真核 DNA 结合的有 5 种类型的组蛋白： H1 ， H2A ， H2B ， H3

Histone Acetylation/Deacetylation As a Regulator of Cell Cycle Gene Expression

-diphosphate (ADP)-ribosylation, methylation, ubiquitination, and acetylation (1 ,2 ). Histone acetylation involves the transfer of an acetyl group from acetyl-coenzyme A (CoA) to the ε-amino group of lysine side chains within the substrate by histone acetyl

RNA-biotin based pulldown assays for the detection of siRNA targeted genomic regions and siRNA directed histone modifications (PROT32)

upon the dual pulldown to incorporate a third pulldown which is an iteration of the ChIP and is a pulldown for H3K27me3+ (Figure 1b). The third assay described here is the biotin-RNA pulldown of a low-copy RNA that spans the siRNA targeted promoter region