RESIDUE 1AP 38 CONECT N1 2 C2 C6 CONECT C2 3 N1 N2 N3 CONECT C4 3 C5 N3 N9 CONECT C5 3 C4 C6 N7 CONECT C6 3 N1 C5 N6 CONECT C8 3 N9 N7 H81 CONECT N2 3 C2 HN21 HN22 CONECT N3 2 C2 C4 CONECT N9 3 C4 C8 C1' CONECT N7 2 C5 C8 CONECT N6 3 C6 HN61 HN62 CONECT P 4 OP1 OP2 O5' OP3 CONECT OP1 2 P H1P CONECT OP2 1 P CONECT O5' 2 P C5' CONECT C5' 4 O5' C4' H52 H51 CONECT C4' 4 C5' O4' C3' H4 CONECT O4' 2 C4' C1' CONECT C1' 4 N9 O4' C2' H11 CONECT C2' 4 C1' C3' H21 H22 CONECT C3' 4 C4' C2' O3' H31 CONECT O3' 2 C3' HO31 CONECT OP3 2 P H3P CONECT H81 1 C8 CONECT HN21 1 N2 CONECT HN22 1 N2 CONECT HN61 1 N6 CONECT HN62 1 N6 CONECT H1P 1 OP1 CONECT H52 1 C5' CONECT H51 1 C5' CONECT H4 1 C4' CONECT H11 1 C1' CONECT H21 1 C2' CONECT H22 1 C2' CONECT H31 1 C3' CONECT HO31 1 O3' CONECT H3P 1 OP3 END HET 1AP 38 HETNAM 1AP 2,6-DIAMINOPURINE NUCLEOTIDE FORMUL 1AP C10 H15 N6 O6 P1