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Protein Data Bank exchange dictionary (pdbx) version 1.0521
_pdbx_refine_tls.S[2][2]
Name:'_pdbx_refine_tls.S[2][2]'
Definition:
The [2][2] 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.
Type: float
Type conditions: esd
Mandatory item: no
Aliases:_ccp4_refine_tls.S[2][2] (cif_rcsb.dic version 1.1)
_ccp4_refine_tls.S[2][2] (cif_ccp4.dic version 1.0)
Related item: _pdbx_refine_tls.S[2][2]_esd (associated_esd)
Category: pdbx_refine_tls