Data Item _refine_ls_restr.pdbx_restraint_function
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General 
- Item name
- _refine_ls_restr.pdbx_restraint_function
- Category name
- refine_ls_restr
- Attribute name
- pdbx_restraint_function
- Required in PDB entries
- no
- Used in current PDB entries
- Yes, in about 3.8 % of entries
Item Description
The functional form of the restraint function used in the least-squares
refinement.
Item Example1
SINUSOIDAL
Item Example2
HARMONIC
Item Example3
SEMIHARMONIC
Data Type 
- Data type code
- text
- Data type detail
- text item types / multi-line text ...
- Primitive data type code
- char
- Regular expression
- [][ \n\t()_,.;:"&<>/\{}'`~!@#$%?+=*A-Za-z0-9|^-]*