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Re: [ccp4bb] xds process gave different cell parameters |
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- Protein crystallographyMain steps:- Protein purification- Crystallisation Special:- Programs for crystallography- X-ray detectors Basic tutorials:- Chemistry- Protein - Peptide - Amino Acids Xtal community:- CCP4BB |
CCP4bb navigationCCP4bb <-- 1999 <-- November 1999 <-- 30 November 1999Subject: Re: xds process gave different cell parameters From: harry {- at -} MRC-LMB {- dot -} CAM {- dot -} AC {- dot -} UK harry {- at -} MRC-LMB {- dot -} CAM {- dot -} AC {- dot -} UK Date: 2010-01-05 Hi I think that even post-refining with high resolution data you are unlikely to refine reliably to the same value within 1 part in 10,000 if you are making small differences to your processing. The differences you have are what I would consider to be within experimental error, so I wouldn't worry about them at all. > Hi > > I was processing my data with XDS several runs, they gave slightly > different cell parameters everytime, eg: > 1) 77.100 103.850 116.550 90.00 90.00 90.00 P 21 21 21 > 2) 77.086 103.821 116.533 90.00 90.00 90.00 P 21 21 21 > > I have already a refined model from 1), can I use this model to > refine against dataset 2) by simply change the cell parameter in the > pdb file? There's nothing wrong with dataset 1), just wonder whether it > is doable . > > Many thanks > Jane > CCP4bb navigationCCP4bb <-- 1999 <-- November 1999 <-- 30 November 1999 |
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