Data Item _pdbx_vrpt_summary_diffraction.data_anisotropy
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General 
- Item name
- _pdbx_vrpt_summary_diffraction.data_anisotropy
- Category name
- pdbx_vrpt_summary_diffraction
- Attribute name
- data_anisotropy
- Required in PDB entries
- no
- Used in currrent PDB entries
- No
Item Description
The ratio (Bmax - Bmin) / Bmean where Bmax, Bmin and Bmean are computed from the B-values
associated with the principal axes of the anisotropic thermal ellipsoid.
This ratio is usually less than 0.5; for only 1% of PDB entries it is more than 1.0 (Read et al., 2011).
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.DataAnisotropy | http://wwpdb.org/validation/schema/wwpdb_validation_v6.00.xsd | V6.00 |