Data Item _pdbx_nmr_chem_shift_ref.indirect_shift_ratio
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General 
- Item name
- _pdbx_nmr_chem_shift_ref.indirect_shift_ratio
- Category name
- pdbx_nmr_chem_shift_ref
- Attribute name
- indirect_shift_ratio
- Required in PDB entries
- no
- Required for PDB deposition
- yes
- Used in currrent PDB entries
- No
Item Description
The Chi value used in calculating the chemical shift referencing values
for nuclei that are referenced indirectly. The values used should be those recommended
by the IUPAC Taskforce on the deposition of data to the public databases
(Markley, et al. Pure and Appl. Chem. 70, 117-142 (1998).
Additional Descriptive Information for Depositors
For indirectly referenced chemical shifts, the Chi value used in calculating the chemical shift. The values used should be those recommended by the IUPAC Taskforce on the deposition of data to the public databases (Markley, et al. Pure and Appl. Chem. 70, 117-142 (1998).)
Item Example
0.25144953
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]+)?
- Default value
- 1