RESIDUE A1EZM 21 CONECT C21 4 C22 O20 C63 H1 CONECT C22 3 C21 O23 O1 CONECT O23 1 C22 CONECT O20 2 C21 H2 CONECT C63 4 C21 C64 C65 H3 CONECT C64 4 C63 H4 H5 H6 CONECT C65 4 C63 C66 H7 H8 CONECT C66 4 C65 H9 H10 H11 CONECT O1 2 C22 H12 CONECT H1 1 C21 CONECT H2 1 O20 CONECT H3 1 C63 CONECT H4 1 C64 CONECT H5 1 C64 CONECT H6 1 C64 CONECT H7 1 C65 CONECT H8 1 C65 CONECT H9 1 C66 CONECT H10 1 C66 CONECT H11 1 C66 CONECT H12 1 O1 END HET A1EZM 21 HETNAM A1EZM (2S,3R)-3-methyl-2-oxidanyl-pentanoic acid FORMUL A1EZM C6 H12 O3