Index

Macromolecular dictionary (mmCIF) version 2.0.09

_chem_link_tor.atom_id_1

Definition:

   The ID of the first of the four atoms that define the torsion
   angle.

   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