Are your Zns on special positions?
And onlt very special axial lengths in C2 can generate any twinning.
If you run SFCHECK it might suggest an operator
See $CHTML/twinning.html for summary of possible operators
E
Miles Pufall wrote:
Hi,
I am running a TLS refinement in REFMAC5 on a protein:DNA complex in
space group C2 with 4 zincs in it. I generated my tls file in both
Create/Edit TLS and through TLSMD. Refining failed in both cases,
generating the following message:
CGMAT cycle number = 1
Too many symmetry related atoms
Check symmetry and cell dimensions
===> Error: FIND_CONTACT_WITH_BRICKING failed
This may be unrelated, but I have been concerned about some twinning,
as refinement for 1.8 angstrom data has only left around Rfree/R of
29/26. Checks for twinning using CNS and Xtriage (Phenix) have
concluded that there the data is probably not twinned or pseudo
translated. I've been unable to run Detwin as there is no standard
transformation available for the C2 spacegroup in my CCP4.
Any thoughts?
Thanks,
Miles
Miles Pufall, PhD
University of California-San Francisco
600 16th St., Rm S574, Box 2280
San Francisco, CA 94107
(415)476-4480
begin:vcard
fn:Eleanor Dodson
n:Dodson;Eleanor
email;internet:[EMAIL PROTECTED]
tel;work:+44 (0) 1904 328259
tel;fax:+44 (0) 1904 328266
tel;home:+44 (0) 1904 424449
version:2.1
end:vcard
