_pdbx_struct_chem_comp_diagnostics.ordinal 1 _pdbx_struct_chem_comp_diagnostics.auth_comp_id Q20 _pdbx_struct_chem_comp_diagnostics.auth_seq_id 10 _pdbx_struct_chem_comp_diagnostics.seq_num . _pdbx_struct_chem_comp_diagnostics.pdb_strand_id Q _pdbx_struct_chem_comp_diagnostics.asym_id Q _pdbx_struct_chem_comp_diagnostics.type 'GEOMETRY' _pdbx_struct_chem_comp_diagnostics.details 'Strained geometry. Long carbonyl bond at C10.'