RESIDUE 2FD 31 CONECT O5' 2 C5' H5' CONECT C5' 4 O5' C4' H5'1 H5'2 CONECT C4' 4 C5' O4' C3' H4' CONECT O4' 2 C4' C1' CONECT C1' 4 O4' N9 C2' H1' CONECT N9 3 C1' C4 C8 CONECT C4 3 N9 N3 C5 CONECT N3 2 C4 C2 CONECT C2 3 N3 F N1 CONECT F 1 C2 CONECT N1 2 C2 C6 CONECT C6 3 N1 N6 C5 CONECT N6 3 C6 HN61 HN62 CONECT C5 3 C4 C6 N7 CONECT N7 2 C5 C8 CONECT C8 3 N9 N7 H8 CONECT C2' 4 C1' C3' H2'1 H2'2 CONECT C3' 4 C4' C2' O3' H3' CONECT O3' 2 C3' H1 CONECT H5' 1 O5' CONECT H5'1 1 C5' CONECT H5'2 1 C5' CONECT H4' 1 C4' CONECT H1' 1 C1' CONECT HN61 1 N6 CONECT HN62 1 N6 CONECT H8 1 C8 CONECT H2'1 1 C2' CONECT H2'2 1 C2' CONECT H3' 1 C3' CONECT H1 1 O3' END HET 2FD 31 HETSYN 2FD 2-FLUORO-2'-DEOXYADENOSINE HETNAM 2FD 5-(6-AMINO-2-FLUORO-PURIN-9-YL)-2-HYDROXYMETHYL-TETRAHY HETNAM 2 2FD DRO-FURAN-3-OL FORMUL 2FD C10 H12 F1 N5 O3