Data Item _refine.pdbx_overall_SU_R_free_Blow_DPI

General

Item name
_refine.pdbx_overall_SU_R_free_Blow_DPI
Category name
refine
Attribute name
pdbx_overall_SU_R_free_Blow_DPI
Required in PDB entries
no
Used in current PDB entries
Yes, in about 0.6 % of entries

Item Description

The overall standard uncertainty (estimated standard deviation) of the displacement parameters based on the crystallographic R-free value, expressed in a formalism known as the dispersion precision indicator (DPI). Ref: Blow, D (2002) Acta Cryst. D58, 792-797

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]+)?