Histone Peptides

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CAT# Product Name M.W Molecular Formula Inquiry
H10001 Histone 4 - 12, p300/CBP Substrate 1085.3 Inquiry
H10002 Histone H3 (23 - 34) 1114.3 Inquiry
H10003 CDK5 Substrate [PKTPKKAKKL] 1138.5 Inquiry
H10004 Histone H3 (23 - 34) - Cys 1217.4 Inquiry
H10005 Histone H1 - derived Peptide Inquiry
H10008 CDK5 Substrate [PKTPKKAKKL], 5 - TMR labeled 1551 Inquiry
H10009 AKT/PKB/Rac - Protein Kinase Substrate [ARKRERTYSFGHHA] 1715.9 Inquiry
H10010 Histone H4 (1 - 20), PRMT7 Substrate, M1 1991.3 Inquiry
H10011 Histone H2A (1 - 20) 2087.4 Inquiry
H10012 Histone H4 (1 - 21), p300/CBP Substrate 2091.5 Inquiry
H10014 Histone H3 (1 - 20), N - Terminal 2183.6 Inquiry
H10016 Histone H3 (1 - 21), N - Terminal 2254.6 Inquiry
H10017 Histone H1. (22 - 42), human, mouse 2374.7 Inquiry
H10018 Histone H3 (21 - 44) 2505.9 Inquiry
H10019 Histone H3 (116.136), C116.136 2508 Inquiry
H10020 Histone H3 (15.39) 2570.1 Inquiry
H10023 Histone H3 (1 - 25), amide 2625.1 Inquiry
H10025 Histone H4 (1 - 7), N - Terminal 617.7 Inquiry
H10026 Histone H2B (21-41), biotin labeled 3024.7 Inquiry
H10027 Histone deacetylase, HDAC substrate 600.7 Inquiry


In eukaryotic cells, the basic unit of chromatin is the nucleosome, which is composed of histones (H2A, H2B, H3 and H4), H1, and DNA. Histone peptides not only regulate gene expression, but also play an important role in DNA damage repair, replication and recombination. With the development of epigenetics, the role of histone peptides becomes more and more important. Histone peptides function mainly through a variety of epigenetic modifications. Histone modification includes acetylation and deacetylation, methylation and demethylation, phosphorylation and dephosphorylation, ubiquitination and deubiquitination, and etc.

Mechanism of action

Acetylation and methylation are two important modifications of histone peptides, the acetylation is regulated commonly by histone acetyltransferases and histone deacetylases, these two enzymes modify histone peptides reversibility to regulate histone acetylation level, thus to regulate the initiation and extension of transcription. The acetylation promotes transcription, on the contrary, the deacetylation inhibits transcription. Moreover, the histone methylation mainly occurs on lysine and arginine residues of H3 and H4, which is regulated by histone methyltransferase and histone demethylase.

Application of Histone Peptides

The acetylated histone peptides inhibit the formation of many tumor cells, including the adenocarcinoma cell of rectum, the gastric cancer cell, the breast cancer cell, and the prostate cancer cells. And balancing the acetylation of histone peptides contributes to the treatment of diabetes. This is because the deacetylation of histone peptides plays a negative role in islet development, beta cell proliferation and beta cell functional regulation. Methylated histone peptides and demethylated histone peptides are also involved in a variety of diseases. One histone demethylase named JHDM1B is considered as a tumor suppressor. In addition, there are several kinds of different histone methyltransferases has been linked to heart disease, such as SymD1, EMHT1 and Dot1. The abnormality of SymD1 led to a developmental disorder of embryonic cardiomyocytes. The mutation or deletion of EMHT1 is the main cause of 9qSTDS syndrome. When cells differentiate, the absence of Dot1 results in a variety of developmental abnormalities, including heart malformation. In a word, the histone peptides are associated with a variety of human diseases, and whether it plays a positive role or a negative role depends on different superficial modification.


  1. Jennifer S. Carew., Francis J. Giles., Steffan T. Nawrocki. (2008). Histone deacetylase inhibitors: Mechanisms of cell death and promise in combination cancer therapy. Cancer letters, 269(1), 7-17.
  2. L Morera., M Lübbert., M Jung. (2016). Targeting histone methyltransferases and demethylases in clinical trials for cancer therapy. Clinical Epigenetics, 8(1), 5-7.
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