Data Item _pdbx_nmr_chem_shift_ref.indirect_shift_ratio

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