Data Item _chem_comp_bond.atom_id_1

General

Item name
_chem_comp_bond.atom_id_1
Category name
chem_comp_bond
Attribute name
atom_id_1
Required in PDB entries
yes
Used in current PDB entries
Yes, in about 80.1 % of entries
Used in the Chemical Component dictionary
Yes

Item Description

The ID of the first of the two atoms that define the bond. 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