The PDBX_ENTITY_NONPOLY category provides a mapping between entity and the nonpolymer component
loop_ _pdbx_entity_nonpoly.entity_id _pdbx_entity_nonpoly.name _pdbx_entity_nonpoly.comp_id 2 'TERBIUM(III) ION' TB 3 'ACETATE ION' ACT 4 'SULFATE ION' SO4 5 water HOH