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Re: [ccp4bb] RMSD |
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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: RMSD From: Dirk Kostrewa dirk {- dot -} kostrewa {- at -} PSI {- dot -} CH Date: 2007-03-14 Dear John, I don't know how different the RMSD values are, and whether the calculated estimates are with or without hydrogen atoms (this can make a difference). In principle, both programs use the Engh & Huber stereochemistry library, but I've observed in the past that different programs used slightly different "implementations" of this library, resulting in different RMSD values, although they should all be the same ... Good luck, Dirk. john kryst wrote: > Hi ccp4bb !!! > > Does the rmsd estimation (for eg. rmsd_bonds ) depends on the program we > use > ?? > > Example : shifting from Refmac to CNS. There appears to be an increase in > rmsd of bonds even without refining the structure in CNS. Is the estimation > methods are different or am i doing something wrong !! > > Thanks for your valuable inputs. > > regards > john > -- **************************************** Dirk Kostrewa Paul Scherrer Institut Biomolecular Research, OFLC/110 CH-5232 Villigen PSI, Switzerland Phone: +41-56-310-4722 Fax: +41-56-310-5288 E-mail: dirk.kostrewa@psi.ch http://sb.web.psi.ch **************************************** CCP4bb navigationCCP4bb <-- 1999 <-- November 1999 <-- 30 November 1999 |
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