PDBx/mmCIF
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chem_comp_group
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chem_comp_group
Categories that describe components of chemical structure.
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chem_comp
chem_comp_angle
chem_comp_atom
chem_comp_bond
chem_comp_chir
chem_comp_chir_atom
chem_comp_plane
chem_comp_plane_atom
chem_comp_tor
chem_comp_tor_value