十一一一一一一一一一一一一一一一上一一 COOH HN-CH-CH2-CH:-C-N-CH-C-N-CH,-COOH H CH.H S ※ GS-SG COOH 0 CH.o H2N-CH-CH2-CH2-C-N-CH-C-N-CH2-COOH H H※ GS－SG