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组蛋白H4抗体
包装与价格:
产品名称 Histone H4 Rabbit pAb 产品介绍
组蛋白H4抗体 商品属性
中文名称组蛋白H4抗体 别 名H4F2; H4FN; HIST1H4; HIST2H4; HISTH4H4; methyl histone H4; H4_HUMAN; Osteogenic growth peptide; OGP. 抗体来源Rabbit 克隆类型Polyclonal 克 隆 号 交叉反应Human,Mouse,Rat 产品应用WB=1:500-2000,IHC-P=1:100-500,IHC-F=1:100-500,IF=1:100-500,Flow-Cyt=1ug/Test not yet tested in other applications. optimal dilutions/concentrations should be determined by the end user. 理论分子量11 kDa 检测分子量 细胞定位细胞核 性 状Liquid 浓 度1mg/ml 免 疫 原KLH conjugated synthetic peptide derived from human Histone H4: 51-103/103 亚 型IgG 纯化方法affinity purified by Protein A 缓 冲 液0.01M TBS (pH7.4) with 1% BSA, 0.02% Proclin300 and 50% Glycerol. 保存条件Shipped at 4℃. Store at -20℃ for one year. Avoid repeated freeze/thaw cycles. 注意事项This product as supplied is intended for research use only, not for use in human, therapeutic or diagnostic applications. PubMedPubMed 产品介绍Histones are basic nuclear proteins that are responsible for the nucleosome structure of the chromosomal fiber in eukaryotes. Nucleosomes consist of approximately 146 bp of DNA wrapped around a histone 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 member of the histone H4 family. Transcripts from this gene lack polyA tails; instead, they contain a palindromic termination element. [provided by RefSeq, Jul 2008]. 靶点与功能
组蛋白H4是核心组蛋白家族成员(分子量约11.3kDa),与H2A、H2B、H3共同构成核小体核心颗粒,参与染色质结构维持和基因表达调控。其核心研究价值: 表观遗传标记:H4的赖氨酸乙酰化(如H4K5ac、H4K8ac)、甲基化(H4K20me3)等修饰与转录激活/沉默密切相关; 细胞周期调控:H4的磷酸化修饰在有丝分裂期染色体浓缩中起关键作用; 疾病标志物:H4修饰异常与肿瘤(如肺癌、前列腺癌)、神经退行性疾病相关。 实验操作关键要点
ChIP实验(染色质免疫沉淀): 染色质制备:使用甲醛交联(1%甲醛室温固定10分钟),超声破碎获得200-500bp片段; 抗体用量:每10⁶细胞对应2-5μg抗体,4℃旋转孵育过夜; 对照设置:Input对照(未免疫沉淀的染色质)、阴性对照(IgG)。 WB检测(核蛋白提取物): 样本处理:使用核蛋白提取试剂盒分离细胞核组分,避免胞质蛋白干扰; 上样量:核蛋白上样量5-10μg,15% SDS-PAGE凝胶分离(因H4分子量小); 抗体孵育:一抗1:2000稀释(5% BSA+TBST),4℃孵育过夜,二抗1:5000室温孵育1小时。 公司正在出售的产品
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