Structural Elucidation of a 2:2 4-Ketoaldehyde−Amine Adduct as a Model for Lysine-Directed Cross-Linking of Proteins by 4-Ketoaldehydes
作者:Guozhang Xu、Lawrence M. Sayre
DOI:10.1021/tx9900573
日期:1999.9.1
4-Ketoaldehydes react with lysine-based amines to form the same pyrroles that form in low yield by treatment of proteins with 4-hydroxy-2-alkenals generated endogenously during lipid peroxidation. Since pyrroles are susceptible to oxidative coupling, it has been presumed that the cross-linking of proteins observed for 4-ketoaldehydes involves the intermediacy of the corresponding lysine-derived pyrroles