Data Item _pdbx_struct_conn_angle.ptnr2_symmetry

General

Item name
_pdbx_struct_conn_angle.ptnr2_symmetry
Category name
pdbx_struct_conn_angle
Attribute name
ptnr2_symmetry
Required in PDB entries
no
Used in current PDB entries
Yes, in about 35.4 % of entries

Item Description

Describes the symmetry operation that should be applied to the atom specified by _pdbx_struct_conn_angle.ptnr2_label* to generate the second partner in the structure angle.

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])?