RESIDUE 5BT 29 CONECT N1 3 C2 C6 C1' 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 HN4 HN4A CONECT C5 3 C4 BR5 C6 CONECT BR5 1 C5 CONECT C6 3 N1 C5 H6 CONECT C1' 4 N1 C2' O4' H1' CONECT C2' 4 C1' C3' H2' H2'A CONECT C3' 4 C2' O3' C4' H3' CONECT O3' 2 C3' HO3' CONECT C4' 4 C3' O4' C5' H4' CONECT O4' 2 C1' C4' CONECT C5' 4 C4' O5' H5' H5'A CONECT O5' 2 C5' HO5' CONECT HN4 1 N4 CONECT HN4A 1 N4 CONECT H6 1 C6 CONECT H1' 1 C1' CONECT H2' 1 C2' CONECT H2'A 1 C2' CONECT H3' 1 C3' CONECT HO3' 1 O3' CONECT H4' 1 C4' CONECT H5' 1 C5' CONECT H5'A 1 C5' CONECT HO5' 1 O5' END HET 5BT 29 HETSYN 5BT 5-bromo-2'-doxy-D-cytidine HETNAM 5BT 5-bromo-2'-deoxycytidine FORMUL 5BT C9 H12 Br1 N3 O4