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Macromolecular dictionary (mmCIF) version 2.0.09

_chem_link_bond.atom_id_1

Name:
'_chem_link_bond.atom_id_1'

Definition:

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

   As this data item does not point to a specific atom in a
   specific chemical component, it is not a child in the
   linkage sense.

Type: code

Mandatory item: yes

Category: chem_link_bond