RESIDUE 2CO 16 CONECT N 3 CA H H2 CONECT CA 4 N C CB HA CONECT C 3 CA O OXT CONECT O 1 C CONECT CB 4 CA SG HB2 HB3 CONECT SG 2 CB OD CONECT OD 2 SG OE CONECT OE 2 OD HE CONECT OXT 2 C HXT CONECT H 1 N CONECT H2 1 N CONECT HA 1 CA CONECT HB2 1 CB CONECT HB3 1 CB CONECT HE 1 OE CONECT HXT 1 OXT END HET 2CO 16 HETNAM 2CO S-HYDROPEROXYCYSTEINE FORMUL 2CO C3 H7 N O4 S