Data Item _ccp4_refine_tls.origin_z
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General 
- Item name
- _ccp4_refine_tls.origin_z
- Category name
- ccp4_refine_tls
- Attribute name
- origin_z
- Required in PDB entries
- no
- Used in currrent PDB entries
- No
Item Description
The z coordinate in angstroms of the origin to which the
TLS parameters are referred, specified according to
a set of orthogonal Cartesian axes related to the cell axes as
given in _atom_sites.Cartn_transform_axes.
If the origin is omitted, it is assumed to be the centre of
reaction of the group, in which case S must be symmetric
Data Type 
- Data type code
- float
- Data type detail
- int 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
