RESIDUE 1OS 27 CONECT O1 1 P CONECT P 4 O1 O2 O3 C6 CONECT O2 2 P H1 CONECT O3 2 P H2 CONECT C6 4 P N3 C5 H3 CONECT N3 3 C6 H4 H5 CONECT C5 3 C6 C7 C4 CONECT C7 3 C5 C8 H7 CONECT C8 3 C7 C2 H8 CONECT C2 3 C8 C1 C3 CONECT C1 3 C2 N1 N2 CONECT N1 3 C1 H9 H10 CONECT N2 2 C1 H11 CONECT C3 3 C2 C4 H12 CONECT C4 3 C5 C3 H13 CONECT H1 1 O2 CONECT H2 1 O3 CONECT H3 1 C6 CONECT H4 1 N3 CONECT H5 1 N3 CONECT H7 1 C7 CONECT H8 1 C8 CONECT H9 1 N1 CONECT H10 1 N1 CONECT H11 1 N2 CONECT H12 1 C3 CONECT H13 1 C4 END HET 1OS 27 HETNAM 1OS [(R)-amino(4-carbamimidoylphenyl)methyl]phosphonic acid FORMUL 1OS C8 H12 N3 O3 P1