RESIDUE 4AM 38 CONECT C1 3 O1A O1B C2 CONECT O1A 1 C1 CONECT O1B 2 C1 HOB1 CONECT C2 3 C1 C3 O6 CONECT C3 3 C2 C4 H3 CONECT C4 4 C3 N4 C5 H4 CONECT N4 3 C4 HN41 HN42 CONECT C5 4 C4 N5 C6 H5 CONECT N5 3 C5 C10 HN5 CONECT C10 3 N5 O10 C11 CONECT O10 1 C10 CONECT C11 4 C10 H111 H112 H113 CONECT C6 4 C5 O6 C7 H6 CONECT O6 2 C2 C6 CONECT C7 4 C6 O7 C8 H7 CONECT O7 2 C7 HO7 CONECT C8 4 C7 O8 C9 H8 CONECT O8 2 C8 HO8 CONECT C9 4 C8 O9 H91 H92 CONECT O9 2 C9 HO9 CONECT HOB1 1 O1B CONECT H3 1 C3 CONECT H4 1 C4 CONECT HN41 1 N4 CONECT HN42 1 N4 CONECT H5 1 C5 CONECT HN5 1 N5 CONECT H111 1 C11 CONECT H112 1 C11 CONECT H113 1 C11 CONECT H6 1 C6 CONECT H7 1 C7 CONECT HO7 1 O7 CONECT H8 1 C8 CONECT HO8 1 O8 CONECT H91 1 C9 CONECT H92 1 C9 CONECT HO9 1 O9 END HET 4AM 38 HETSYN 4AM 4-amino-Neu5Ac2en HETNAM 4AM 4-AMINO-2-DEOXY-2,3-DEHYDRO-N-ACETYL-NEURAMINIC ACID FORMUL 4AM C11 H18 N2 O7