Table 2. CPO-Labeled Human Albumin Peptidesa.
start−end | Mr | sequence | CPO-labeled |
---|---|---|---|
139−144 | 1234.6 | K(CONH2)Y*LYEIAR | Y138 |
146−159 | 1877.9 | HPYFY*APELLFFAK | Y150 |
161−174 | 1797.8 | Y*KAAFTECCQAADK | Y161 |
390−402 | 1791.8 | QNCELFEQLGEY*K | Y401 |
411−413 | 547.2 | Y*TK | Y411 |
446−466 | 2653.2 | MPCAEDY*LSVVLNQLCVLHEK | Y452 |
Peptide KYLYEIAR was carbamylated on the N-terminal Lys by degradation products in urea, adding a mass of 43. Chorpyrifos oxon adds a mass of 136 to the labeled tyrosine.