RESIDUE 3HL 15 CONECT CA 4 CB C HA1 HA2 CONECT CB 4 CA OG1 CG2 HB CONECT OG1 2 CB HOG1 CONECT CG2 4 CB HG21 HG22 HG23 CONECT C 3 CA OA OB CONECT OA 1 C CONECT OB 2 C HOB CONECT HA1 1 CA CONECT HA2 1 CA CONECT HB 1 CB CONECT HOG1 1 OG1 CONECT HG21 1 CG2 CONECT HG22 1 CG2 CONECT HG23 1 CG2 CONECT HOB 1 OB END HET 3HL 15 HETNAM 3HL (3S)-3-HYDROXYBUTANOIC ACID FORMUL 3HL C4 H8 O3