RESIDUE 1SC 35 CONECT O3P 2 P HO3P CONECT P 4 O3P O1P O5' S CONECT O1P 1 P CONECT O5' 2 P C5' CONECT C5' 4 O5' C4' H5'1 H5'2 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' O2' C1' H2' CONECT O2' 2 C2' HO2' 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 2 C2 C4 CONECT C4 3 N3 N4 C5 CONECT N4 3 C4 HN41 HN42 CONECT C5 3 C4 C6 H5 CONECT C6 3 N1 C5 H6 CONECT S 2 P HS CONECT HO3P 1 O3P CONECT H5'1 1 C5' CONECT H5'2 1 C5' CONECT H4' 1 C4' CONECT H3' 1 C3' CONECT HO3' 1 O3' CONECT H2' 1 C2' CONECT HO2' 1 O2' CONECT H1' 1 C1' CONECT HN41 1 N4 CONECT HN42 1 N4 CONECT H5 1 C5 CONECT H6 1 C6 CONECT HS 1 S END HET 1SC 35 HETNAM 1SC 5'-O-THIOPHOSPHONOCYTIDINE FORMUL 1SC C9 H14 N3 O7 P1 S1