Crystallographic Information Framework

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Index

Macromolecular dictionary (mmCIF) version 2.0.09

_geom_torsion.atom_site_id_1

Name:
'_geom_torsion.atom_site_id_1'

Definition:

   The identifier of the first of the four atom sites that define
   the torsion angle.

   This data item is a pointer to _atom_site.id in the ATOM_SITE
   category.

Mandatory item: yes

Alias:
_geom_torsion_atom_site_label_1 (cif_core.dic version 2.0.1)

International Tables for Crystallography

Volume G: Definition and exchange of crystallographic data

First online edition (2006)

Edited by S. R. Hall and B. McMahon

An essential guide and reference to CIF for programmers, data managers handling crystal-structure information and practising crystallographers.