Data Item _symmetry.space_group_name_H-M
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General 
- Item name
- _symmetry.space_group_name_H-M
- Category name
- symmetry
- Attribute name
- space_group_name_H-M
- Required in PDB entries
- no
- Used in current PDB entries
- Yes, in about 93.8 % 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.
Item Example1
P 1 21/m 1
Item Example2
P 2/n 2/n 2/n (origin at -1)
Item Example3
R -3 2/m
Data Type 
- Data type code
- line
- Data type detail
- char item types / multi-word items ...
- Primitive data type code
- char
- Regular expression
- [][ \t_(),.;:"&<>/\{}'`~!@#$%?+=*A-Za-z0-9|^-]*
Aliases
| Alias Item Name | Dictionary Name | Dictionary Version |
|---|---|---|
| _symmetry_space_group_name_H-M | cif_core.dic | 2.0.1 |