Data Item _pdbx_vrpt_summary_diffraction.Padilla_Yeates_L2_mean
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General 
- Item name
- _pdbx_vrpt_summary_diffraction.Padilla_Yeates_L2_mean
- Category name
- pdbx_vrpt_summary_diffraction
- Attribute name
- Padilla_Yeates_L2_mean
- Required in PDB entries
- no
- Used in currrent PDB entries
- No
Item Description
Padilla and Yeates twinning parameter <|L**2|>.
Theoretical values is 0.333 in the untwinned case, and 0.2 in the perfectly twinned case.
X-ray entry specific, obtained from the Xtriage program.
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]+)?
Aliases
| Alias Item Name | Dictionary Name | Dictionary Version |
|---|---|---|
| _Entry.TwinL2 | http://wwpdb.org/validation/schema/wwpdb_validation_v6.00.xsd | V6.00 |