Data Item _em_3d_crystal_entity.angle_alpha
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General 
- Item name
- _em_3d_crystal_entity.angle_alpha
- Category name
- em_3d_crystal_entity
- Attribute name
- angle_alpha
- Required in PDB entries
- yes
- Used in current PDB entries
- Yes, in about 0.07 % of entries
Item Description
Unit-cell angle alpha in degrees.
Data Type 
- Data type code
- float
- Data type detail
- float item types are the subset of numbers that are the floating numbers.
- Primitive data type code
- numb
- Regular expression
- -?(([0-9]+)[.]?|([0-9]*[.][0-9]+))([(][0-9]+[)])?([eE][+-]?[0-9]+)?
- Default value
- 90.0
- Units
- degrees
Allowed Boundary Conditions
| Minimum Value | Maximum Value |
|---|---|
| 0.0 | 180.0 |