Data Item _em_map.symmetry_space_group
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General 
- Item name
- _em_map.symmetry_space_group
- Category name
- em_map
- Attribute name
- symmetry_space_group
- Required in PDB entries
- yes
- Used in currrent PDB entries
- No
Item Description
The space group number for the map.
The value is 1 unless the sample is crystalline.
(CCP4 map header word 23 ISPG)
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]+