RESIDUE 5CU 15 CONECT O53 1 C51 CONECT C51 3 O53 O52 C5 CONECT O52 2 C51 H1 CONECT C5 3 C51 C4 C6 CONECT C4 3 C5 O4 N3 CONECT O4 1 C4 CONECT N3 3 C4 C2 H3 CONECT C2 3 N3 O2 N1 CONECT O2 1 C2 CONECT N1 3 C2 C6 H2 CONECT C6 3 C5 N1 H4 CONECT H1 1 O52 CONECT H3 1 N3 CONECT H4 1 C6 CONECT H2 1 N1 END HET 5CU 15 HETNAM 5CU 2,4-dioxo-1,2,3,4-tetrahydropyrimidine-5-carboxylic aci HETNAM 2 5CU d FORMUL 5CU C5 H4 N2 O4