Fig. 6.
MALDI-TOF mass spectra of Lys-C digests of a mixture of Sso7d and ODN2 before and after photoirradiation are shown. (A) Amino acid sequence and putative Lys-C cleavage fragment of Sso7d. (B and C) Lys-C digests of Sso7d and ODN2 before photoirradiation (B) and after photoirradiation (C) with photoirradiation condition the same as in Fig. 2. ∗, Caused by the formation of Met-29 oxidation of the 29–40 fragment (M+H+ 1321.19).