Data Item _chem_comp_atom.alt_atom_id

General

Item name
_chem_comp_atom.alt_atom_id
Category name
chem_comp_atom
Attribute name
alt_atom_id
Required in PDB entries
no
Used in currrent PDB entries
No
Used in the Chemical Component dictionary
Yes

Item Description

An alternative identifier for the atom. This data item would be used in cases where alternative nomenclatures exist for labelling atoms in a group.

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|^-]*