Data Item _pdbx_nmr_chem_shift_reference.id
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General 
- Item name
- _pdbx_nmr_chem_shift_reference.id
- Category name
- pdbx_nmr_chem_shift_reference
- Attribute name
- id
- Required in PDB entries
- yes
- Used in currrent PDB entries
- No
Item Description
An integer value that uniquely identifies a set of chemical shift
reference values from other sets of chemical shift referencing values.
Additional Descriptive Information for Depositors
The number that uniquely identifies this set of chemical shift references from the others listed in this entry.
Data Type 
- Data type code
- int
- Data type detail
- int item types are the subset of numbers that are the negative or positive integers.
- Primitive data type code
- numb
- Regular expression
- [+-]?[0-9]+