Data Item _geom_torsion.site_symmetry_2

General

Item name
_geom_torsion.site_symmetry_2
Category name
geom_torsion
Attribute name
site_symmetry_2
Required in PDB entries
yes
Used in currrent PDB entries
No

Item Description

The symmetry code of the second of the four atom sites that define the torsion angle.
 4
 7_645

Data Type

Data type code
symop
Data type detail
symop item types take the form n_klm, where n refers to the symmetry operation that is applied to the coordinates in the ATOM_SITE category identified by _atom_site_label. It must match a number given in _symmetry_equiv_pos_site_id. k, l, and m refer to the translations that are subsequently applied to the symmetry transformed coordinates to generate the atom used. These translations (x,y,z) are related to (k,l,m) by k = 5 + x l = 5 + y m = 5 + z By adding 5 to the translations, the use of negative numbers is avoided.
Primitive data type code
char
Regular expression
([1-9]|[1-9][0-9]|1[0-8][0-9]|19[0-2])(_[1-9][1-9][1-9])?
Default value
1_555

Aliases

Alias Item Name Dictionary Name Dictionary Version
_geom_torsion_site_symmetry_2 cif_core.dic 2.0.1