RESIDUE 18W 53 CONECT O3A 1 C9A CONECT C9A 3 O3A O4A C8A CONECT O4A 2 C9A H1 CONECT C8A 4 C9A C7A H2 H3 CONECT C7A 4 C8A C3A H4 H5 CONECT C3A 3 C7A C2A C4A CONECT C2A 3 C3A C5A C1A CONECT C5A 4 C2A C6A H6 H7 CONECT C6A 3 C5A O2A O1A CONECT O2A 2 C6A H8 CONECT O1A 1 C6A CONECT C1A 3 C2A CHA NA CONECT CHA 4 C1A H9 H10 H11 CONECT NA 3 C1A C4A H12 CONECT C4A 3 C3A NA CHB CONECT CHB 3 C4A C1B H13 CONECT C1B 3 CHB C2B NB CONECT C2B 3 C1B C5B C3B CONECT C5B 4 C2B C6B H15 H16 CONECT C6B 3 C5B O2B O1B CONECT O2B 1 C6B CONECT O1B 2 C6B H17 CONECT NB 3 C1B C4B H14 CONECT C4B 3 NB O5B C3B CONECT O5B 1 C4B CONECT C3B 3 C2B C4B C7B CONECT C7B 4 C3B C8B H18 H19 CONECT C8B 4 C7B C9B H20 H21 CONECT C9B 3 C8B O4B O3B CONECT O4B 2 C9B H22 CONECT O3B 1 C9B CONECT H1 1 O4A CONECT H2 1 C8A CONECT H3 1 C8A CONECT H4 1 C7A CONECT H5 1 C7A CONECT H6 1 C5A CONECT H7 1 C5A CONECT H8 1 O2A CONECT H9 1 CHA CONECT H10 1 CHA CONECT H11 1 CHA CONECT H12 1 NA CONECT H13 1 CHB CONECT H15 1 C5B CONECT H16 1 C5B CONECT H17 1 O1B CONECT H18 1 C7B CONECT H19 1 C7B CONECT H20 1 C8B CONECT H21 1 C8B CONECT H22 1 O4B CONECT H14 1 NB END HET 18W 53 HETNAM 18W 3-[(5Z)-5-{[3-(2-carboxyethyl)-4-(carboxymethyl)-5-meth HETNAM 2 18W yl-1H-pyrrol-2-yl]methylidene}-4-(carboxymethyl)-2-oxo- HETNAM 3 18W 2,5-dihydro-1H-pyrrol-3-yl]propanoic acid FORMUL 18W C20 H22 N2 O9