Data Item _space_group.IT_number

General

Item name
_space_group.IT_number
Category name
space_group
Attribute name
IT_number
Required in PDB entries
no
Used in current PDB entries
Yes, in about 0.09 % of entries

Item Description

The number as assigned in International Tables for Crystallography Vol. A, specifying the proper affine class (i.e. the orientation-preserving affine class) of space groups (crystallographic space-group type) to which the space group belongs. This number defines the space-group type but not the coordinate system in which it is expressed.

Data Type

Data type code
int
Data type detail
int item types are the subset of numbers that are the negative or positive integers.
Primitive data type code
numb
Regular expression
[+-]?[0-9]+

Allowed Boundary Conditions

Minimum Value Maximum Value
1 230

Aliases

Alias Item Name Dictionary Name Dictionary Version
_space_group_IT_number cif_core.dic 2.3