Analysis of d--Aspartyl Isomers at Specific Sites in Proteins
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Recent studies have shown that biologically uncommon d -β-aspartic acid residues accumulate in specific proteins during the aging process. However, aspartyl residues are not racemized uniformly because d -Asp appears to be confined to particular sites in these proteins. We here describe the method to identify the specific sites of d -β-aspartic acids inversion in proteins.
