RESIDUE 48C 40 CONECT OAZ 1 CAU CONECT CAU 3 OAZ NAT NAW CONECT NAT 3 CAU CAV H1 CONECT CAV 3 NAT OBA CAX CONECT OBA 1 CAV CONECT CAX 3 CAV CAY H2 CONECT CAY 3 CAX NAW H3 CONECT NAW 3 CAU CAY CBB CONECT CBB 4 NAW OBE CBD H4 CONECT OBE 2 CBB CBF CONECT CBD 4 CBB OBG CBC H5 CONECT OBG 2 CBD H6 CONECT CBC 4 CBD OBH CBF H7 CONECT OBH 2 CBC H8 CONECT CBF 4 OBE CBC CAA H9 CONECT CAA 4 CBF NAB H10 H11 CONECT NAB 3 CAA C H12 CONECT C 3 NAB O CA CONECT O 1 C CONECT CA 4 C N CB H13 CONECT N 3 CA H14 H15 CONECT CB 4 CA H17 H18 H19 CONECT H1 1 NAT CONECT H2 1 CAX CONECT H3 1 CAY CONECT H4 1 CBB CONECT H5 1 CBD CONECT H6 1 OBG CONECT H7 1 CBC CONECT H8 1 OBH CONECT H9 1 CBF CONECT H10 1 CAA CONECT H11 1 CAA CONECT H12 1 NAB CONECT H13 1 CA CONECT H14 1 N CONECT H15 1 N CONECT H17 1 CB CONECT H18 1 CB CONECT H19 1 CB END HET 48C 40 HETNAM 48C 5'-(D-alanylamino)-5'-deoxyuridine FORMUL 48C C12 H18 N4 O6