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Histone H3 (5-23), a derivative of histone H3 consisting of amino acids 5-23, serves as a substrate for histone acetyltransferase (HAT) assays.

Histone H3 (23-34) is a peptide composed of amino acid residues 23 to 34 of the histone H3 protein, including lysine residues at positions 23 and 27, which are subject to methylation and acetylation modifications.

Histone H3 (1-35) is a 35-residue peptide derived from histone H3, a crucial component of the five main histones involved in chromatin formation within eukaryotic cells.

Histone H3 (21-44), derived from the 21-44 amino acid sequence of histone H3, is commonly used as a substrate in protein arginine methyltransferase assays to analyze methylation activity.

Histone H3 (1-21) is a truncated form of the Histone H3 protein consisting of amino acids 1 to 21. It serves as a common substrate for methyltransferase assays targeting Histone 3 at lysine 4 and lysine 9, as well as for acetyltransferase assays targeting Histone 3 at lysine 9 and lysine 14.

Histone H3 (1-35) acetate is a 35-residue peptide of histone H3. Histone H3 is an important protein that plays a role in the dynamic and long term regulation of genes.