Data Category chem_comp_atom
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General 
- Category name
- chem_comp_atom
- Required in PDB entries
- No
- Category group membership
- chem_comp
- Used in current PDB entries
- Yes, in about 80.1 % of entries
- Used in the Chemical Component dictionary
- Yes
Category Relationship Diagrams 
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Category Description
Items in the chem_comp_atom category define the atoms in a chemical component, the name for each atom, and characteristics of each atom in the chemical component.
Category Data Items
- _chem_comp_atom.atom_id
- _chem_comp_atom.comp_id
- _chem_comp_atom.entry_id
- _chem_comp_atom.align
- _chem_comp_atom.alt_atom_id
- _chem_comp_atom.aromatic_flag
- _chem_comp_atom.auth_atom_id
- _chem_comp_atom.bmrb_code
- _chem_comp_atom.charge
- _chem_comp_atom.chirality
- _chem_comp_atom.details
- _chem_comp_atom.drawing_2d_coord_x
- _chem_comp_atom.drawing_2d_coord_y
- _chem_comp_atom.ionizable
- _chem_comp_atom.isotope_number
- _chem_comp_atom.leaving_atom_flag
- _chem_comp_atom.model_cartn_x
- _chem_comp_atom.model_cartn_x_esd
- _chem_comp_atom.model_cartn_x_ideal
- _chem_comp_atom.model_cartn_y
- _chem_comp_atom.model_cartn_y_esd
- _chem_comp_atom.model_cartn_y_ideal
- _chem_comp_atom.model_cartn_z
- _chem_comp_atom.model_cartn_z_esd
- _chem_comp_atom.model_cartn_z_ideal
- _chem_comp_atom.oxidation_number
- _chem_comp_atom.partial_charge
- _chem_comp_atom.pdb_atom_id
- _chem_comp_atom.pdbx_ordinal
- _chem_comp_atom.stereo_config
- _chem_comp_atom.substruct_code
- _chem_comp_atom.type_symbol
- _chem_comp_atom.unpaired_electron_number