Crystallographic Information Framework

[CIF logo]

Index

Protein Data Bank exchange dictionary (pdbx) version 1.0521

_pdbx_refine.free_R_factor_4sig_cutoff

Name:
'_pdbx_refine.free_R_factor_4sig_cutoff'

Definition:

   R free value (4 sigma cutoff). 
       Placeholder for PDB mapping of SHELXL refinement data.

Example:

0.216

Type: float

Mandatory item: no

Alias:
_ndb_refine.free_R_factor_4sig_cutoff (cif_rcsb.dic version 1.1)

Category: pdbx_refine


International Tables for Crystallography

Volume G: Definition and exchange of crystallographic data

First online edition (2006)

Edited by S. R. Hall and B. McMahon

An essential guide and reference to CIF for programmers, data managers handling crystal-structure information and practising crystallographers.