Histone H3 (Mono Methyl Lys27) Polyclonal Antibody
抗体，也叫免疫球蛋白（Ig），是一种能特异性结合抗原的糖蛋白，而抗原是在易感染动物体内引发抗体产生的物质。在体内，抗体是由于外源性分子的侵袭而产生的。抗体以一个或者多个Y字形单体存在，每个Y字形单体由4条多肽链组成，包含两条相同的重链和两条相同的轻链。轻链和重链是根据它们的分子量大小来命名的。Y字形结构的顶端是可变区，为抗原结合部位。任何一个抗体的轻链都可以分为κ或λ型（基于小分子多肽结构上的差异），每一个抗体的重链则决定了它的类或型。
Histones are basic nuclear proteins that are responsible for the nucleosome structure of the chromosomal fiber in eukaryotes. This structure consists of approximately 146 bp of DNA wrapped around a nucleosome, an octamer composed of pairs of each of the four core histones (H2A, H2B, H3, and H4). The chromatin fiber is further compacted through the interaction of a linker histone, H1, with the DNA between the nucleosomes to form higher order chromatin structures. This gene is intronless and encodes a replication-dependent histone that is a member of the histone H3 family. Transcripts from this gene lack polyA tails; instead, they contain a palindromic termination element. This gene is found in the large histone gene cluster on chromosome 6p22-p21.3. [provided by RefSeq, Aug 2015]
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