生物源
human
重組細胞
expressed in E. coli
化驗
≥95% (SDS-PAGE)
形狀
lyophilized powder
分子量
11.5 kDa (1-136 aa)
包裝
pkg of 100 and 250 μg
UniProt登錄號
運輸包裝
dry ice
儲存溫度
−70°C
基因資訊
human ... HIST1H4A(8359)
一般說明
H2A is a core component of nucleosome. A nucleosome is the basic repeating unit of chromatin in which 146 base pairs of DNA wrap twice around an octamer of histones. The octamer is composed of two of each histone H2A, H2B, H3, and H4. DNA accessibility is regulated via a complex set of post-translational modifications of these histones, also called histone code, and nucleosome remodeling. Histones H2A and H2B form a dimer. Histones H3 and H4 form a tetramer. The combination of two H2A/H2B dimers and one H3/H4 tetramer create the nucleosome core. Histone H4 undergoes many modifications which include acetylation, phosphorylation and methylation that are important for regulation of gene transcription. Nucleosomes wrap and compact DNA into chromatin, limiting DNA accessibility to the cellular machineries which require DNA as a template. Histones thereby play a central role in transcription regulation, DNA repair, DNA replication and chromosomal stability.
外觀
Lyophilized powder. Recommended buffer is 50 mM NaPO₄ containing 100 mM sodium chloride and 20% glycerol.
重構
Resuspend in buffer of choice.
儲存類別代碼
13 - Non Combustible Solids
水污染物質分類（WGK）
WGK 3
閃點（°F）
Not applicable
閃點（°C）
Not applicable
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