Cell Signaling Technology

Product Pathways - Chromatin Regulation / Epigenetics

Mono-Methyl-Histone H3 (Lys4) Antibody #9723

H3.1   H3.2   H3K4   H3K4me1  

No. Size Price
9723S 100 µl ( 10 western blots ) ¥3,900.00 现货查询 购买询价
9723 carrier free & custom formulation / quantityemail request
Applications Dilution Species-Reactivity Sensitivity MW (kDa) Isotype
W 1:1000 Human,Mouse,Rat,Monkey, Endogenous 17 Rabbit
IP 1:25
IF-IC 1:200

Species cross-reactivity is determined by western blot.

Applications Key: W=Western Blotting, IP=Immunoprecipitation, IF-IC=Immunofluorescence (Immunocytochemistry),


Species predicted to react based on 100% sequence homology: Xenopus, Zebrafish,

Specificity / Sensitivity

Mono-Methyl-Histone H3 (Lys4) Antibody detects endogenous levels of histone H3 when mono-methylated on Lys4. The antibody shows slight cross-reactivity with histone H3 when di-methylated on Lys4, but does not cross-react with non-methylated or tri-methylated Lys 4. In addition, the antibody does not cross-react with methylated histone H3 Lys9, Lys27, Lys36 or methylated histone H4 Lys20.

Mono-Methyl-Histone H3 (Lys4) Antibody检测仅在Lys4位点单甲基化的内源性histone H3的总蛋白水平。该抗体可以与Lys4位点双甲基化histone H3蛋白发生弱的交叉反应,但是不与Lys 4位点单甲基化或三甲基化发生交叉反应。另外,该抗体不能与Lys9, Lys27, Lys36位点甲基化的histone H3或Lys20位点甲基化的histone H4蛋白发生交叉反应。

Source / Purification

Polyclonal antibodies are produced by immunizing animals with a synthetic peptide corresponding to the amino terminus of histone H3 in which lysine 4 is mono-methylated. Antibodies are purified by protein A and peptide affinity chromatography.

通过合成的histone H3氨基末端lysine 4位点单甲基化的多肽片段去免疫动物从而制备出此多克隆抗体。通过蛋白A和多肽亲和层析纯化获得。

Western Blotting

Western Blotting

Western blot analysis of lysates from HeLa, NIH/3T3, C6 and COS cells, using Mono-Methyl-Histone H3 (Lys4) Antibody.

使用Mono-Methyl-Histone H3 (Lys4) Antibody,免疫印迹(Western blot)分析HeLa、NIH/3T3、C6和COS细胞中Mono-Methyl-Histone H3 (Lys4)的蛋白水平。



Mono-Methyl-Histone H3 (Lys4) Antibody specificity was determined by peptide ELISA. Each graph depicts a titration of this antibody and the corresponding reactivity toward the non-methyl, mono-methyl, di-methyl and tri-methyl states of the indicated histone H3 or H4 lysine residue.

通过peptide ELISA确定Mono-Methyl-Histone H3 (Lys4) Antibody的特异性。每个图分别描述了这个抗体的滴度和histone H3或H4蛋白赖氨酸非甲基化、单甲基化、双甲基化和三甲基化水平的相应活性。



Confocal immunofluorescent images of NIH/3T3 cells labeled with Mono-Methyl-Histone H3 (Lys4) Antibody (green, left) compared to an isotype control (right). Actin filaments have been labeled with Alexa Fluor® 555 phalloidin (red).

与an isotype control (右图)比较,使用Mono-Methyl-Histone H3 (Lys4) Antibody (绿色, 左图),共聚焦免疫荧光分析NIH/3T3细胞。Alexa Fluor® 555 phalloidin标记微丝蛋白(红色)。


The nucleosome, made up of four core histone proteins (H2A, H2B, H3 and H4), is the primary building block of chromatin. Originally thought to function as a static scaffold for DNA packaging, histones have now been shown to be dynamic proteins, undergoing multiple types of post-translational modifications, including acetylation, phosphorylation, methylation, and ubiquitination (1). Histone methylation is a major determinant for the formation of active and inactive regions of the genome and is crucial for the proper programming of the genome during development (2,3). Arginine methylation of histones H3 (Arg2, 17, 26) and H4 (Arg3) promotes transcriptional activation and is mediated by a family of protein arginine methyltransferases (PRMTs), including the co-activators PRMT1 and CARM1 (PRMT4) (4). In contrast, a more diverse set of histone lysine methyltransferases has been identified, all but one of which contain a conserved catalytic SET domain originally identified in the Drosophila Su(var)3-9, Enhancer of zeste, and Trithorax proteins. Lysine methylation occurs primarily on histones H3 (Lys4, 9, 27, 36, 79) and H4 (Lys20) and has been implicated in both transcriptional activation and silencing (4). Methylation of these lysine residues coordinates the recruitment of chromatin modifying enzymes containing methyl-lysine binding modules such as chromodomains (HP1, PRC1), PHD fingers (BPTF, ING2), tudor domains (53BP1), and WD-40 domains (WDR5) (5-8). The discovery of histone demethylases such as PADI4, LSD1, JMJD1, JMJD2, and JHDM1 has shown that methylation is a reversible epigenetic marker (9).

核小体是由四种组蛋白(H2A、H2B、H3和H4)组成,它是染色质的主要构成模块。起初被认为作为一个DNA包装的静态支架,现在则显示组蛋白是动态蛋白,经历多种翻译后修饰的形式,包括乙酰化、磷酸化、甲基化和泛素化(1)。组蛋白甲基化对于该基因组的活化和未活化区域的形成有着主要决定作用,并且在发育期间对该基因组的正确规划起着关键作用(2,3)。histones H3 (Arg2、17、26)和H4 (Arg3)的精氨酸甲基化促进转录调控以及通过蛋白质精氨酸甲基转移酶(PRMTs)家族的介导,包括共激活因子PRMT1和CARM1 (PRMT4) (4)。相反,多种多样的组蛋白赖氨酸甲基转移酶已经被鉴定,除了这个之外其它的都包含一个保守的催化SET区域,这个起初被鉴定在Drosophila Su(var)3-9、zeste增强子和Trithorax蛋白。赖氨酸甲基化主要发生在histones H3 (Lys4、9、27、36、79)和H4 (Lys20),并且已经涉及到转录激活和沉默(4)。这些赖氨酸残基的甲基化协调染色质修饰酶的招募包括methyl-lysine结合模块例如chromodomains (HP1, PRC1)、PHD fingers (BPTF, ING2)、tudor domains (53BP1)和WD-40 domains (WDR5) (5-8)。组蛋白例如PADI4、LSD1、JMJD1、JMJD2和JHDM1的发现已经显示甲基化是一个可逆的表遗传标记物(9)。

  1. Peterson, C.L. and Laniel, M.A. (2004) Curr Biol 14, R546-51.
  2. Kubicek, S. et al. (2006) Ernst Schering Res Found Workshop , 1-27.
  3. Lin, W. and Dent, S.Y. (2006) Curr Opin Genet Dev 16, 137-42.
  4. Lee, D.Y. et al. (2005) Endocr Rev 26, 147-70.
  5. Daniel, J.A. et al. (2005) Cell Cycle 4, 919-26.
  6. Shi, X. et al. (2006) Nature 442, 96-9.
  7. Wysocka, J. et al. (2006) Nature 442, 86-90.
  8. Wysocka, J. et al. (2005) Cell 121, 859-72.
  9. Trojer, P. and Reinberg, D. (2006) Cell 125, 213-7.

Application References

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