RESIDUE 4HF 54 CONECT C5 4 C4A C6 H51 H52 CONECT C4A 3 C5 C4 C8A CONECT C4 3 C4A O4 N3 CONECT O4 1 C4 CONECT N3 3 C4 C2 HN3 CONECT C2 3 N3 N2 N1 CONECT N2 3 C2 HN21 HN22 CONECT N1 2 C2 C8A CONECT C8A 3 C4A N1 N8 CONECT N8 3 C8A C7 HN8 CONECT C7 4 N8 C6 H71 H72 CONECT C6 4 C5 C7 C9 H6 CONECT C9 4 C6 C10 H91 H92 CONECT C10 4 C9 C3' H101 H102 CONECT C3' 3 C10 S2' C4' CONECT S2' 2 C3' C1' CONECT C4' 3 C3' C5' H4' CONECT C5' 3 C4' C1' H5' CONECT C1' 3 S2' C5' C11 CONECT C11 3 C1' O11 N CONECT O11 1 C11 CONECT N 3 C11 CA HN CONECT CA 4 N C CB HA CONECT C 3 CA OX1 OX2 CONECT OX1 2 C HX1 CONECT OX2 1 C CONECT CB 4 CA CG HB1 HB2 CONECT CG 4 CB CD HG1 HG2 CONECT CD 3 CG OE1 OE2 CONECT OE1 1 CD CONECT OE2 2 CD HE2 CONECT H51 1 C5 CONECT H52 1 C5 CONECT HN3 1 N3 CONECT HN21 1 N2 CONECT HN22 1 N2 CONECT HN8 1 N8 CONECT H71 1 C7 CONECT H72 1 C7 CONECT H6 1 C6 CONECT H91 1 C9 CONECT H92 1 C9 CONECT H101 1 C10 CONECT H102 1 C10 CONECT H4' 1 C4' CONECT H5' 1 C5' CONECT HN 1 N CONECT HA 1 CA CONECT HX1 1 OX1 CONECT HB1 1 CB CONECT HB2 1 CB CONECT HG1 1 CG CONECT HG2 1 CG CONECT HE2 1 OE2 END HET 4HF 54 HETSYN 4HF 6R-2',5'-THIENYL-5,10-DIDEAZATETRAHYDROFOLIC ACID; LY30 HETSYN 2 4HF 9887 HETNAM 4HF N-[(5-{2-[(6R)-2-AMINO-4-OXO-3,4,5,6,7,8-HEXAHYDROPYRID HETNAM 2 4HF O[2,3-D]PYRIMIDIN-6-YL]ETHYL}-2-THIENYL)CARBONYL]-L-GLU HETNAM 3 4HF TAMIC ACID FORMUL 4HF C19 H23 N5 O6 S1