RESIDUE URU 66 CONECT P 4 OP1 O5' OP2 OP3 CONECT OP1 1 P CONECT O5' 2 P C5' CONECT C5' 4 O5' C4' H2 H3 CONECT C4' 4 C5' C3' O4' H4 CONECT C3' 4 C4' C6' C2' H5 CONECT C6' 4 C3' C H6 H7 CONECT C2' 4 C3' O2' C1' H8 CONECT O2' 2 C2' H9 CONECT C1' 4 C2' O4' N1 H10 CONECT O4' 2 C4' C1' CONECT N1 3 C1' C6 C2 CONECT C6 3 N1 C5 H11 CONECT C5 3 C6 C4 H12 CONECT C4 3 C5 N3 O4 CONECT N3 3 C4 C2 H13 CONECT C2 3 N1 N3 O2 CONECT O2 1 C2 CONECT O4 1 C4 CONECT OP2 2 P H14 CONECT C 3 C6' O3 NZ' CONECT O3 1 C CONECT NZ' 3 C CZ' H15 CONECT CZ' 4 NZ' CY' H16 H17 CONECT CY' 4 CZ' CX' OY' H18 CONECT CX' 4 CY' OX' CW' H19 CONECT OX' 2 CX' H20 CONECT CW' 4 CX' OW' CV' H21 CONECT OW' 2 CW' H22 CONECT CV' 4 CW' OY' N11 H23 CONECT OY' 2 CY' CV' CONECT N11 3 CV' C16 C12 CONECT C16 3 N11 C15 H24 CONECT C15 3 C16 C14 H25 CONECT C14 3 C15 N13 O14 CONECT N13 3 C14 C12 H26 CONECT C12 3 N11 N13 O12 CONECT O12 1 C12 CONECT O14 1 C14 CONECT H2 1 C5' CONECT H3 1 C5' CONECT H4 1 C4' CONECT H5 1 C3' CONECT H6 1 C6' CONECT H7 1 C6' CONECT H8 1 C2' CONECT H9 1 O2' CONECT H10 1 C1' CONECT H11 1 C6 CONECT H12 1 C5 CONECT H13 1 N3 CONECT H14 1 OP2 CONECT H15 1 NZ' CONECT H16 1 CZ' CONECT H17 1 CZ' CONECT H18 1 CY' CONECT H19 1 CX' CONECT H20 1 OX' CONECT H21 1 CW' CONECT H22 1 OW' CONECT H23 1 CV' CONECT H24 1 C16 CONECT H25 1 C15 CONECT H26 1 N13 CONECT OP3 2 P H1 CONECT H1 1 OP3 END HET URU 66 HETNAM URU ((2S,3S,4R,5R)-5-(2,4-dioxo-3,4-dihydropyrimidin-1(2H)- HETNAM 2 URU yl)-3-(2- ((((2R,5R)-5-(2,4-dioxo-3,4-dihydropyrimidin- HETNAM 3 URU 1(2H)-yl)- 3,4-dihydroxytetrahydrofuran-2-yl)methyl)ami HETNAM 4 URU no)-2-oxoethyl)-4- hydroxytetrahydrofuran-2-yl)methyl p HETNAM 5 URU hosphate FORMUL URU C20 H26 N5 O14 P1