Data Item _symmetry.space_group_name_H-M


Item name
Category name
Attribute name
Required in PDB entries
Used in current PDB entries
Yes, in about 94.0 % of entries

Item Description

Hermann-Mauguin space-group symbol. Note that the Hermann-Mauguin symbol does not necessarily contain complete information about the symmetry and the space-group origin. If used, always supply the FULL symbol from International Tables for Crystallography Vol. A (2002) and indicate the origin and the setting if it is not implicit. If there is any doubt that the equivalent positions can be uniquely deduced from this symbol, specify the _symmetry_equiv.pos_as_xyz or _symmetry.space_group_name_Hall data items as well. Leave spaces between symbols referring to different axes.
 P 1 21/m 1
 P 2/n 2/n 2/n (origin at -1)
 R -3 2/m

Data Type

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


Alias Item Name Dictionary Name Dictionary Version
_symmetry_space_group_name_H-M cif_core.dic 2.0.1