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. Author manuscript; available in PMC: 2013 Oct 15.
Published in final edited form as: Chem Res Toxicol. 2012 Aug 14;25(10):2179–2193. doi: 10.1021/tx300253j

Figure 4.

Figure 4

Product ion mass spectra of A) Fraction 1, ASSAK*QR (desamino-PhIP-K) adduct ([M+2H]2+ at m/z 477.8) recovered from NO2-PhIP-modified SA; B) ASSAK*QR (desamino-[2H5]-PhIP-K) adduct ([M+2H]2+ at m/z 480.3) recovered from NO2-[2H5]-PhIP modified SA; C) Fraction 5, Y*TK (desamino-PhIP-Y) adduct ([M+2H]2+ at m/z 309.9) recovered from NO2-PhIP-modified; D) Y*TK (desamino-[2H5]-PhIP-Y) adduct ([M+2H]2+ at m/z 312.4); E) Fraction 8, Y*LYEIAR (desamino-PhIP-Y) adduct ([M+2H]2+ at m/z 568.1) recovered from NO2-PhIP-modified SA; and F) Y*LYEIAR (desamino-[2H5]-PhIP-Y) adduct ([M+2H]2+ at m/z 570.6) recovered from NO2-[2H5]-PhIP modified SA by trypsin digestion.