Data Item _space_group.crystal_system

General

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

Item Description

The name of the system of geometric crystal classes of space groups (crystal system) to which the space group belongs. Note that rhombohedral space groups belong to the trigonal system.

Data Type

Data type code
code
Data type detail
code item types/single words ...
Primitive data type code
char
Regular expression
[][_,.;:"&<>()/\{}'`~!@#$%A-Za-z0-9*|+-]*

Controlled Vocabulary

Allowed Value Details
cubic
hexagonal
monoclinic
orthorhombic
tetragonal
triclinic
trigonal

Controlled Vocabulary at Deposition

Allowed Value Details
cubic
hexagonal
monoclinic
orthorhombic
tetragonal
triclinic
trigonal

Aliases

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