RESIDUE H00 15 CONECT CA 4 CB C HA1 HA2 CONECT CB 4 CA CG HB1 HB2 CONECT CG 4 CB SD HG1 HG2 CONECT SD 2 CG H1 CONECT C 3 CA O OXT CONECT O 1 C CONECT HA1 1 CA CONECT HA2 1 CA CONECT HB1 1 CB CONECT HB2 1 CB CONECT HG1 1 CG CONECT HG2 1 CG CONECT H1 1 SD CONECT OXT 2 C H2 CONECT H2 1 OXT END HET H00 15 HETNAM H00 4-sulfanylbutanoic acid FORMUL H00 C4 H8 O2 S