Re: [ccp4bb] how to convert matrix to angle

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CCP4bb <-- 1999 <-- November 1999 <-- 30 November 1999

Previous message:
Subject: Multiple conformation of ligand, shelx, refmac5, CNS
From: U Sam us_x {- at -} HOTMAIL {- dot -} COM
Date: 2007-07-07

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Subject: Re: how to convert matrix to angle
From: "Das, Debanu" debanu {- at -} SLAC {- dot -} STANFORD {- dot -} EDU
Date: 2007-07-07

Subject: Re: how to convert matrix to angle
From: U Sam us_x {- at -} HOTMAIL {- dot -} COM
Date: 2007-07-07

In this connection I like to know how symmetry (in degrees and translation) is calculated between two or more molecules in the asymmetric unit (A.U.).Suppose if I download a PDB then I like to know the symmetry axis and center coordinate of symmetry axis between two or more molecules in A.U. ThanksDate: Sun, 8 Jul 2007 09:45:30 +0800From: jiamudu@GMAIL.COMSubject: Re: [ccp4bb] how to convert matrix to angleTo: CCP4BB@JISCMAIL.AC.UKThanks a lot.
You are so kind.

On 7/7/07, Kay Diederichs wrote:
Jiamu Du schrieb:> Dear all:> I want to calculate the rotation angle between two similar domains. By
> using Coot, I can superposr the two domain and get the rotation matrix.> But how to convert this matrix to an angle. Is there any program can> calculate this ?> Thanks.>Jiamu Du,
If you have the rotation matrixa11 a12 a13a21 a22 a23a31 a32 a33then(a11 + a22 + a33 - 1) / 2is the cosine of the angle you're looking for.HTH,Kay--Kay Diederichs
http://strucbio.biologie.uni-konstanz.deemail: Kay.Diederichs@uni-konstanz.de Tel +49 7531 88 4049 Fax 3183
Fachbereich Biologie, Universität Konstanz, Box M647, D-78457 Konstanz-- Jiamu DuState Key Laboratory of Molecular BiologyInstitute of Biochemistry and Cell Biology Shanghai Institutes for Biological Sciences
Chinese Academy of Sciences (CAS)

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CCP4bb navigation

CCP4bb <-- 1999 <-- November 1999 <-- 30 November 1999

Previous message:
Subject: Multiple conformation of ligand, shelx, refmac5, CNS
From: U Sam us_x {- at -} HOTMAIL {- dot -} COM
Date: 2007-07-07

Next message:
Subject: Re: how to convert matrix to angle
From: "Das, Debanu" debanu {- at -} SLAC {- dot -} STANFORD {- dot -} EDU
Date: 2007-07-07