Data Item _pdbx_refine_tls.S[3][3]
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General 
- Item name
- _pdbx_refine_tls.S[3][3]
- Category name
- pdbx_refine_tls
- Attribute name
- S[3][3]
- Required in PDB entries
- no
- Used in current PDB entries
- Yes, in about 28.6 % of entries
Item Description
The [3][3] element of the screw-rotation tensor S. This should
be given in the same coordinate frame as the
corresponding anisotropic displacement parameters.
The trace of S is indeterminate by crystallography, and should
be set to zero.
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_degrees
Related Items 
| Related Item Name | Relation Type |
|---|---|
| _pdbx_refine_tls.S[3][3]_esd | associated_esd |
Aliases
| Alias Item Name | Dictionary Name | Dictionary Version |
|---|---|---|
| _ccp4_refine_tls.S[3][3] | cif_rcsb.dic | 1.1 |
| _ccp4_refine_tls.S[3][3] | cif_ccp4.dic | 1.0 |