Data Item _pdbx_helical_symmetry.circular_symmetry
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General 
- Item name
- _pdbx_helical_symmetry.circular_symmetry
- Category name
- pdbx_helical_symmetry
- Attribute name
- circular_symmetry
- Required in PDB entries
- yes
- Used in current PDB entries
- Yes, in about 0.1 % of entries
Item Description
Rotational n-fold symmetry about the helical axis.
Additional Descriptive Information for Depositors
Rotational n-fold symmetry about the helical axis.
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 | +∞ |