Data Item _refine.B_iso_mean
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General 
- Item name
- _refine.B_iso_mean
- Category name
- refine
- Attribute name
- B_iso_mean
- Required in PDB entries
- no
- Used in current PDB entries
- Yes, in about 65.4 % of entries
Item Description
The mean isotropic displacement parameter (B value)
for the coordinate set.
Additional Descriptive Information for Depositors
The mean isotropic displacement parameter (B value) for the coordinate set
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]+)?
- Units
- angstroms_squared
Advisory Boundary Conditions
| Minimum Value | Maximum Value |
|---|---|
| 5 | 70 |