Human Histone H4 (acetyl K5) peptide


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Cat.No.:  SP-0196
Product Name:  Human Histone H4 (acetyl K5) peptide
Background:  Core component of nucleosome. 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. DNA accessibility is regulated via a complex set of post-translational modifications of histones, also called histone code, and nucleosome remodeling.
Storage:  Store at 4℃ if entire vial will be used within 2-4 weeks. Store at -20℃ or -80℃ for longer periods of time. Avoid multiple freeze-thaw cycles.
Appearance:  Liquid
Purity:  >90% (HPLC)
Species:  Human
Accession#:  P62805
Alternative Names:  dJ160A22.1/dJ160A22.2/dJ221C16.1
Sequence Similarities:  Belongs to the histone H4 family.
Post Translational Modifications:  Acetylation at Lys-6 (H4K5ac), Lys-9 (H4K8ac), Lys-13 (H4K12ac) and Lys-17 (H4K16ac) occurs in coding regions of the genome but not in heterochromatin.Citrullination at Arg-4 (H4R3ci) by PADI4 impairs methylation.Monomethylation and asymmetric dimethylation at Arg-4 (H4R3me1 and H4R3me2a, respectively) by PRMT1 favors acetylation at Lys-9 (H4K8ac) and Lys-13 (H4K12ac). Demethylation is performed by JMJD6. Symmetric dimethylation on Arg-4 (H4R3me2s) by the PRDM1/PRMT5 complex may play a crucial role in the germ-cell lineage.Monomethylated, dimethylated or trimethylated at Lys-21 (H4K20me1, H4K20me2, H4K20me3). Monomethylation is performed by SET8. Trimethylation is performed by SUV420H1 and SUV420H2 and induces gene silencing.Ubiquitinated by the CUL4-DDB-RBX1 complex in response to ultraviolet irradiation. This may weaken the interaction between histones and DNA and facilitate DNA accessibility to repair proteins. Monoubiquitinated at Lys-92 of histone H4 (H4K91ub1) in response to DNA damage. The exact role of H4K91ub1 in DNA damage response is still unclear but it may function as a licensing signal for additional histone H4 post-translational modifications such as H4 Lys-21 methylation (H4K20me).Sumoylated, which is associated with transcriptional repression.
Warning:  This product is for research use only. Not for use in diagnostic or therapeutic procedures.

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