RESIDUE 0KL 56 CONECT O3G 2 PG H1 CONECT PG 4 O3G O2G O1G O3B CONECT O2G 2 PG H2 CONECT O1G 1 PG CONECT O3B 2 PG PB CONECT PB 4 O3B O1B O2B O3A CONECT O1B 2 PB H3 CONECT O2B 1 PB CONECT O3A 2 PB PA CONECT PA 4 O3A O1A O2A O5' CONECT O1A 1 PA CONECT O2A 2 PA H4 CONECT O5' 2 PA C5' CONECT C5' 4 O5' C4' H5 H6 CONECT C4' 4 C5' C3' O4' H7 CONECT C3' 4 C4' O3' C2' H8 CONECT O3' 2 C3' H9 CONECT C2' 4 C3' C1' H10 H11 CONECT O4' 2 C4' C1' CONECT C1' 4 C2' O4' N1 H12 CONECT N1 3 C1' C2 C6 CONECT C2 3 N1 O2 N3 CONECT O2 1 C2 CONECT N3 3 C2 C4 H13 CONECT C6 3 N1 C5 H14 CONECT C5 3 C6 C4 C29 CONECT C4 3 N3 C5 O4 CONECT O4 1 C4 CONECT C29 2 C5 C30 CONECT C30 2 C29 C31 CONECT C31 4 C30 C32 H15 H16 CONECT C32 4 C31 C33 H17 H18 CONECT C33 4 C32 N34 H19 H20 CONECT N34 3 C33 H21 H22 CONECT H1 1 O3G CONECT H2 1 O2G CONECT H3 1 O1B CONECT H4 1 O2A CONECT H5 1 C5' CONECT H6 1 C5' CONECT H7 1 C4' CONECT H8 1 C3' CONECT H9 1 O3' CONECT H10 1 C2' CONECT H11 1 C2' CONECT H12 1 C1' CONECT H13 1 N3 CONECT H14 1 C6 CONECT H15 1 C31 CONECT H16 1 C31 CONECT H17 1 C32 CONECT H18 1 C32 CONECT H19 1 C33 CONECT H20 1 C33 CONECT H21 1 N34 CONECT H22 1 N34 END HET 0KL 56 HETNAM 0KL 5-(5-aminopent-1-yn-1-yl)-2'-deoxyuridine 5'-(tetrahydr HETNAM 2 0KL ogen triphosphate) FORMUL 0KL C14 H22 N3 O14 P3