Data Item _pdbx_dcc_density.mean_F_square_over_mean_F2

General

Item name
_pdbx_dcc_density.mean_F_square_over_mean_F2
Category name
pdbx_dcc_density
Attribute name
mean_F_square_over_mean_F2
Required in PDB entries
no
Used in currrent PDB entries
No

Item Description

Value of <F>2/<F2> calculated by Xtriage using acentric reflections.(untwinned: 0.785; perfect twin 0.885).

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]+)?