| abstract |
A method for isolating a modified peptide from a complex mixture of peptides. (A) obtaining a proteinaceous preparation from an organism, wherein the preparation comprises modified peptides derived from two or more different proteins, and (b) at least one immobilization of the preparation. Contacting with the modified specific antibody, and (c) isolating at least one modified peptide specifically bound by the modified specific antibody immobilized in step (b). Is included. [Selection figure] None |