PDBx/mmCIF
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Data Item
_chem_comp_tor.atom_id_1
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General
Item name
_chem_comp_tor.atom_id_1
Category name
chem_comp_tor
Attribute name
atom_id_1
Required in PDB entries
yes
Used in currrent PDB entries
No
Item Description
The ID of the first of the four atoms that define the torsion angle. This data item is a pointer to _chem_comp_atom.atom_id in the CHEM_COMP_ATOM category.
Data Type
Data type code
atcode
Data type detail
Character data type for atom names ...
Primitive data type code
char
Regular expression
[][ _(),.;:"&<>/\{}'`~!@#$%?+=*A-Za-z0-9|^-]*
Parent Data Items
_chem_comp_atom.atom_id
Dependent Items
_chem_comp_tor.atom_id_2
_chem_comp_tor.atom_id_4
_chem_comp_tor.atom_id_3