Data Item _pdbx_nmr_chem_shift_ref.chem_shift_val
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General 
- Item name
- _pdbx_nmr_chem_shift_ref.chem_shift_val
- Category name
- pdbx_nmr_chem_shift_ref
- Attribute name
- chem_shift_val
- Required in PDB entries
- yes
- Used in currrent PDB entries
- No
Item Description
Value assigned to the chemical shift of the reference compound.
Additional Descriptive Information for Depositors
Chemical shift of the reference atom(s).
Item Example
4.78
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]+)?