RESIDUE 21V 57 CONECT OE2 2 CD H1 CONECT CD 3 OE2 OE1 CG CONECT OE1 1 CD CONECT CG 4 CD CB H2 H3 CONECT CB 4 CG CA H4 H5 CONECT CA 4 CB CT N H6 CONECT CT 3 CA O1 O2 CONECT O1 1 CT CONECT O2 2 CT H7 CONECT N 3 CA C H8 CONECT C 3 N O C11 CONECT O 1 C CONECT C11 3 C C12 C16 CONECT C12 3 C11 C13 H9 CONECT C13 3 C12 C14 H10 CONECT C16 3 C11 C15 H11 CONECT C15 3 C16 C14 H12 CONECT C14 3 C13 C15 C10 CONECT C10 4 C14 C9 H13 H14 CONECT C9 4 C10 C6 H15 H16 CONECT C6 4 C9 C7 C5 H17 CONECT C7 4 C6 N8 H18 H19 CONECT N8 3 C7 C8A H26 CONECT C5 4 C6 C4A H20 H21 CONECT C4A 3 C5 C4 C8A CONECT C4 3 C4A O4 N3 CONECT O4 1 C4 CONECT C8A 3 N8 C4A N1 CONECT N1 3 C8A C2 H22 CONECT C2 3 N1 N3 NA2 CONECT N3 2 C4 C2 CONECT NA2 3 C2 H24 H25 CONECT H1 1 OE2 CONECT H2 1 CG CONECT H3 1 CG CONECT H4 1 CB CONECT H5 1 CB CONECT H6 1 CA CONECT H7 1 O2 CONECT H8 1 N CONECT H9 1 C12 CONECT H10 1 C13 CONECT H11 1 C16 CONECT H12 1 C15 CONECT H13 1 C10 CONECT H14 1 C10 CONECT H15 1 C9 CONECT H16 1 C9 CONECT H17 1 C6 CONECT H18 1 C7 CONECT H19 1 C7 CONECT H20 1 C5 CONECT H21 1 C5 CONECT H24 1 NA2 CONECT H25 1 NA2 CONECT H26 1 N8 CONECT H22 1 N1 END HET 21V 57 HETSYN 21V 5,10-dideazatetrahydrofolic acid HETNAM 21V N-(4-{2-[(6S)-2-amino-4-oxo-1,4,5,6,7,8-hexahydropyrido HETNAM 2 21V [2,3-d]pyrimidin-6-yl]ethyl}benzoyl)-L-glutamic acid FORMUL 21V C21 H25 N5 O6