RESIDUE 3TT 42 CONECT O3G 2 PG H1 CONECT PG 4 O3G O1G O2G N3B CONECT O1G 2 PG H2 CONECT O2G 1 PG CONECT N3B 3 PG PB H3 CONECT PB 4 N3B O2B O1B O3A CONECT O2B 2 PB H4 CONECT O1B 1 PB CONECT O3A 2 PB PA CONECT PA 4 O3A O1A O2A O5' CONECT O1A 2 PA H5 CONECT O2A 1 PA CONECT O5' 2 PA C5' CONECT C5' 4 O5' C4' H6 H7 CONECT C4' 4 C5' O4' S3' H8 CONECT O4' 2 C4' C1' CONECT S3' 2 C4' C2' CONECT C2' 4 S3' C1' H9 H10 CONECT C1' 4 O4' C2' N1 H11 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 H12 H13 CONECT C5 3 C4 C6 H14 CONECT C6 3 N1 C5 H15 CONECT H1 1 O3G CONECT H2 1 O1G CONECT H3 1 N3B CONECT H4 1 O2B CONECT H5 1 O1A CONECT H6 1 C5' CONECT H7 1 C5' CONECT H8 1 C4' CONECT H9 1 C2' CONECT H10 1 C2' CONECT H11 1 C1' CONECT H12 1 N4 CONECT H13 1 N4 CONECT H14 1 C5 CONECT H15 1 C6 END HET 3TT 42 HETNAM 3TT [[[[(2R,5S)-5-(4-azanyl-2-oxidanylidene-pyrimidin-1-yl) HETNAM 2 3TT -1,3-oxathiolan-2-yl]methoxy-oxidanyl-phosphoryl]oxy-ox HETNAM 3 3TT idanyl-phosphoryl]amino]phosphonic acid FORMUL 3TT C8 H15 N4 O11 P3 S1