Merck, 608041-1G, L-Lysine-¹³C₆,¹⁵N₂ hydrochloride

Lysine is a basic ketogenic amino acid with a protonated alkyl amino group. Lysine degradation results in the formation of acetoacetate. Acetylation/deacetylation of lysine residues in histones is a mechanism to regulate chromatin organization in eukaryotes. Isotope labeled amino acids are required for the production of isotopically labeled proteins.