RESIDUE A1I8R 16 CONECT C 3 CA O OXT CONECT CA 4 C CB HA1 HA2 CONECT CB 4 CA N HB3 HB2 CONECT CN 4 N HN1 HN2 HN3 CONECT N 3 CB CN H2 CONECT O 1 C CONECT OXT 2 C HXT CONECT HA1 1 CA CONECT HA2 1 CA CONECT HB3 1 CB CONECT HB2 1 CB CONECT HN1 1 CN CONECT HN2 1 CN CONECT HN3 1 CN CONECT H2 1 N CONECT HXT 1 OXT END HET A1I8R 16 HETNAM A1I8R N-methyl-beta-alanine FORMUL A1I8R C4 H9 N O2