RESIDUE A1AVU 19 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 CG1 CG2 HB CONECT CG1 4 CB F01 HG11 HG12 CONECT CG2 4 CB HG21 HG22 HG23 CONECT F01 1 CG1 CONECT H 1 N CONECT H2 1 N CONECT HA 1 CA CONECT OXT 2 C HXT CONECT HB 1 CB CONECT HG11 1 CG1 CONECT HG12 1 CG1 CONECT HG21 1 CG2 CONECT HG22 1 CG2 CONECT HG23 1 CG2 CONECT HXT 1 OXT END HET A1AVU 19 HETNAM A1AVU (3S)-4-fluoro-L-valine FORMUL A1AVU C5 H10 F N O2