2008 Volume 72 Issue 2 Pages 568-571
Three major glyceraldehyde-related advanced glycation end products (AGEs) were formed from a mixture of Nα-acetyllysine, Nα-acetylarginine, and glyceraldehyde. Two of the compounds were MG-H1 and GLAP, as previously reported, and the other compound was identified as Nα-acetyl-Nδ-(5-hydroxy-4,6-dimethyl-pyrimidin-2-yl)-ornithine, argpyrimidine (APN). APN is a modification product of arginine residue, but it did not form from glyceraldehyde with arginine residue. The coexistence of lysine residue was necessary to APN formation.
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