The component identifier for the first monomer partner in the cross link.
This data item is a pointer to _entity_poly_seq.mon_id in the ENTITY_POLY_SEQ category
and the _ihm_cross_link_restraint.comp_id_1 in the IHM_CROSS_LINK_RESTRAINT category.
Data Type
Data type code
ucode
Data type detail
code item types/single words (case insensitive) ...