Histone H3K27Me3 (21-44)-K-bio

Salt-Urea, Sulfopropyl-Sepharose, and Covalent Chromatography Methods for Histone Isolation and Fractionation

for understanding their role in chromatin structure and regulation of DNA functions. Here are described three new protocols for histone isolation from undisturbed whole cells. They avoid the conventional non-denaturing cell lysis, which affects the native

In vitro reconstitution of nucleosome arrays with a stoichiometric content of histone octamer and linker histone

of the 601 DNA array with the Histone octamer and Linker histones whilst preventing oversaturation (Huynh et al, 2005; Robinson et al, 2006; Routh et al, 2008). The assembly of the nucleosome arrays is by the classical and simple salt reconstitution

组蛋白 histone

组蛋白 histone 与有核细胞核内 DNA结合的碱性蛋白，以与 DNA结合成核酸组蛋白的形态，几乎存在于所有细胞核中。在精子核中，由于生物不同，有时以鱼精蛋白取代组蛋白。从氨基酸组成来看，多数是赖氨酸和精氨酸，芳香族氨基酸和含硫氨基酸较少。缔合作用强。一般认为由以下 5种分子构成（因细胞核的种类不同，有时可更多些）： F1 或Ⅰ（高赖氨酸，丙氨酸型）， F2b或Ⅱ b2 （高赖氨酸，丝氨酸型）， F2a2或Ⅱ b1（高丙氨酸，亮氨酸型，高精氨酸、赖氨酸型）， F2a1或Ⅳ