Macromolecular dictionary (mmCIF) version 2.0.09
_struct_sheet_hbond.range_1_beg_label_atom_id
Name:'_struct_sheet_hbond.range_1_beg_label_atom_id'
Definition:
A component of the identifier for the residue for the first partner of the first hydrogen bond between two residue ranges in a sheet. This data item is a pointer to _atom_site.label_atom_id in the ATOM_SITE category.
Mandatory item: yes