Data Item _reflns.pdbx_CC_star

General

Item name
_reflns.pdbx_CC_star
Category name
reflns
Attribute name
pdbx_CC_star
Required in PDB entries
no
Used in current PDB entries
Yes, in about 0.06 % of entries

Item Description

Estimates the value of CC_true, the true correlation coefficient between the average intensities from randomly selected half-datasets. CC_star = sqrt(2*CC_half/(1+CC_half)), where both CC_star and CC_half (CC1/2) Ref: Karplus & Diederichs (2012), Science 336, 1030-33

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]+)?

Allowed Boundary Conditions

Minimum Value Maximum Value
0 1