Histone H3 (21-44), derived from a sequence of 21-44 amino acids of histone H3, is commonly employed as a substrate, particularly for protein arginine methyltransferase assays, where methylation activity is being examined.
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.
CEF3 (SIIPSGPLK) is a peptide representing amino acids 13-21 of the M1 protein in the influenza A virus. The M1 protein is a versatile component of the influenza A virus, carrying out crucial structural and functional tasks throughout the virus's life cycle.