Data Item _refine.pdbx_real_space_R

General

Item name
_refine.pdbx_real_space_R
Category name
refine
Attribute name
pdbx_real_space_R
Required in PDB entries
no
Used in currrent PDB entries
No

Item Description

Real space R factor of electron density for all atoms. The real space R factor is calculated by the equation R_real = [Sumi (|Dobs - Dcal|)]/[Sumi (|Dobs + Dcal|)] Where: Dobs is the observed electron density, Dcal is the calculated electron density, summation is for all the grid points Ref: Branden, C.I. & Jones, T.A. (1990). Nature, 343, 687-689

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]+)?