RESIDUE 2BK 42 CONECT C 3 CA O OT CONECT CG 4 CB H1 H2 H3 CONECT N1 2 C2 C6 CONECT C2 3 N1 C2A C3 CONECT C2A 4 C2 H4 H5 H6 CONECT C3 3 C2 O3 C4 CONECT O3 2 C3 H7 CONECT C4 3 C3 C4A C5 CONECT C4A 4 C4 N H8 H9 CONECT C5 3 C4 C5A C6 CONECT C5A 4 C5 O4P H10 H11 CONECT C6 3 N1 C5 H12 CONECT P 4 O1P O2P O3P O4P CONECT O1P 1 P CONECT O2P 2 P H13 CONECT O3P 2 P H14 CONECT O4P 2 C5A P CONECT N 3 C4A CA H15 CONECT CA 4 C N CB H17 CONECT CB 4 CG CA OB H18 CONECT OB 2 CB H19 CONECT O 2 C H20 CONECT OT 1 C CONECT H1 1 CG CONECT H2 1 CG CONECT H3 1 CG CONECT H4 1 C2A CONECT H5 1 C2A CONECT H6 1 C2A CONECT H7 1 O3 CONECT H8 1 C4A CONECT H9 1 C4A CONECT H10 1 C5A CONECT H11 1 C5A CONECT H12 1 C6 CONECT H13 1 O2P CONECT H14 1 O3P CONECT H15 1 N CONECT H17 1 CA CONECT H18 1 CB CONECT H19 1 OB CONECT H20 1 O END HET 2BK 42 HETNAM 2BK N-({3-hydroxy-2-methyl-5-[(phosphonooxy)methyl]pyridin- HETNAM 2 2BK 4-yl}methyl)-L-allothreonine FORMUL 2BK C12 H19 N2 O8 P1