Macromolecular dictionary (mmCIF) version 2.0.09
_geom_bond.atom_site_auth_seq_id_1
Name:'_geom_bond.atom_site_auth_seq_id_1'
Definition:
An optional identifier of the first of the two atom sites that define the bond. This data item is a pointer to _atom_site.auth_seq_id in the ATOM_SITE category.
Mandatory item: no