PDBx/mmCIF
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Category Group
chem_link_group
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chem_link_group
Categories that describe links between components of chemical structure.
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chem_comp_link
chem_link
chem_link_angle
chem_link_bond
chem_link_chir
chem_link_chir_atom
chem_link_plane
chem_link_plane_atom
chem_link_tor
chem_link_tor_value
entity_link