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P2 21 21 is not an official space group name. Current version of
refmac, when sees unusual space groups then it cannot define
asymmetric unit. But it does not harm refinement. In the next release
it will not happen and space group of any shape or form will be
recoginised.
Garib
On 1 Jun 2006, at 18:24, Adriana Miele wrote:
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Dear crystallographers,
my protein seems to have crystallised in P2 21 21 space group,
according to all the statistics and also thanks to phaser which
discriminated between P21 21 2 and P2 21 21.
When I tried to run a rigid body on the MR solution, Refmac
converged but kept on saying
===> Warning: No such space group in ASYLIM.
The maps are reasonably good (resolution 2.3Å, R=0.33, RFree=0.37)
and I am tracing the protein (the model was a poly-ALA), but can I
trust Refmac statistics if it does not know against which sg is
refining the solution?
thanks for you help!
Adriana
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Adriana E. Miele, Ph.D.
Dipartimento di Scienze Biochimiche
Universita' degli Studi di Roma "La Sapienza"
P.le A. Moro 5
00185 Roma
tel.: +3906 49910713
fax: +3906 4440062
eMail: [EMAIL PROTECTED]
