RESIDUE 4PD 39 CONECT P 4 OP1 OP2 O5' OP3 CONECT OP1 1 P CONECT OP2 2 P HOP2 CONECT O5' 2 P C5' CONECT C5' 4 O5' C4' H5' H5'' CONECT C4' 4 C5' O4' C3' H4' CONECT O4' 2 C4' C1' CONECT C3' 4 C4' O3' C2' H3' CONECT O3' 2 C3' HO3' CONECT C2' 4 C3' C1' H2' H2'' CONECT C1' 4 O4' C2' N1 H1' CONECT N1 3 C1' C2 C6 CONECT C2 3 N1 O2 N3 CONECT O2 1 C2 CONECT N3 3 C2 C4 H19 CONECT C4 3 N3 C5 N17 CONECT C5 3 C4 C6 C14 CONECT C6 3 N1 C5 H6 CONECT C14 3 C5 C15 H14 CONECT C15 3 C14 C16 N17 CONECT C16 4 C15 H161 H162 H163 CONECT N17 2 C4 C15 CONECT OP3 2 P HOP3 CONECT HOP2 1 OP2 CONECT H5' 1 C5' CONECT H5'' 1 C5' CONECT H4' 1 C4' CONECT H3' 1 C3' CONECT HO3' 1 O3' CONECT H2' 1 C2' CONECT H2'' 1 C2' CONECT H1' 1 C1' CONECT H19 1 N3 CONECT H6 1 C6 CONECT H14 1 C14 CONECT H161 1 C16 CONECT H162 1 C16 CONECT H163 1 C16 CONECT HOP3 1 OP3 END HET 4PD 39 HETNAM 4PD 3-(2-DEOXY-5-O-PHOSPHONO-BETA-D-ERYTHRO-PENTOFURANOSYL) HETNAM 2 4PD -6-METHYL-1,3-DIHYDRO-2H-PYRROLO[2,3-D]PYRIMIDIN-2-ONE FORMUL 4PD C12 H16 N3 O7 P1