Hi ccp4bb !!
I am refining a 3.1 A resolution structure which has partial twinning
with twinning fraction 0.27 (space group P61).
When i refined in CNS with twin_lsq target i got 0.1529 and 0.2384 as R and
Rfree.
There is almost 8-9% gap in R and Rfree. Map quality is good enough to trace
all
the atoms and ligands.
There is nothing much to build in the map too. Any suggestions to reduce the
gap in R and Rfree. I couldn't use shelxl because of the resolution. Is it
OK to stop refinement and submit the structure.
with warm regards
John
