RESIDUE 1FC 37 CONECT F24 1 C2' CONECT C2' 4 F24 C3' C1' H1 CONECT C3' 4 C2' O3' C4' H2 CONECT O3' 2 C3' H3 CONECT C4' 4 C3' C5' O4' H4 CONECT C5' 4 C4' O5' H5 H6 CONECT O5' 2 C5' P CONECT P 4 O5' OP2 OP1 OP3 CONECT OP2 2 P H7 CONECT OP1 1 P CONECT C1' 4 C2' O4' N1 H9 CONECT O4' 2 C4' C1' CONECT N1 3 C1' C6 C2 CONECT C6 3 N1 C5 H10 CONECT C5 3 C6 C21 C4 CONECT C21 3 C5 O23 O22 CONECT O23 2 C21 H11 CONECT O22 1 C21 CONECT C4 3 C5 N4 N3 CONECT N4 3 C4 H12 H13 CONECT N3 2 C4 C2 CONECT C2 3 N1 N3 O2 CONECT O2 1 C2 CONECT H1 1 C2' CONECT H2 1 C3' CONECT H3 1 O3' CONECT H4 1 C4' CONECT H5 1 C5' CONECT H6 1 C5' CONECT H7 1 OP2 CONECT H9 1 C1' CONECT H10 1 C6 CONECT H11 1 O23 CONECT H12 1 N4 CONECT H13 1 N4 CONECT OP3 2 P H8 CONECT H8 1 OP3 END HET 1FC 37 HETNAM 1FC 4-amino-1-(2-deoxy-2-fluoro-5-O-phosphono-beta-D-arabin HETNAM 2 1FC ofuranosyl)-2-oxo-1,2-dihydropyrimidine-5-carboxylic ac HETNAM 3 1FC id FORMUL 1FC C10 H13 F1 N3 O9 P1