Mass isotopomer distribution of TBDMS-derivatized protein-bound amino acids (corrected) The symbols of fragments denote the cracking patterns of TBDMS-derivatized amino acids: (M-15) +, (M-57) +, (M-85) +, (M-159) +, f302, and side chain (sc) fragments.

Mass isotopomer distribution of TBDMS-derivatized protein-bound amino acids (corrected) The symbols of fragments denote the cracking patterns of TBDMS-derivatized amino acids: (M-15) +, (M-57) +, (M-85) +, (M-159) +, f302, and side chain (sc) fragments.