Data Item _ndb_struct_na_base_pair_step.j_symmetry_1

General

Item name
_ndb_struct_na_base_pair_step.j_symmetry_1
Category name
ndb_struct_na_base_pair_step
Attribute name
j_symmetry_1
Required in PDB entries
yes
Used in current PDB entries
Yes, in about 6.8 % of entries

Item Description

Describes the symmetry operation that should be applied to the coordinates of the j-th base to generate the second partner in the first base pair of the step.
 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