Re: [ccp4bb] how to convert matrix to angle

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

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

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

Subject: Re: how to convert matrix to angle
From: Jiamu Du jiamudu {- at -} GMAIL {- dot -} COM
Date: 2007-07-07

I have found it.
Thanks.

On 7/8/07, Das, Debanu wrote:
>
> Hi,
> You can also use LSQKAB in CCP4 to get the angle between two similar
> domains.
>
> -Debanu.
>
>
> -----Original Message-----
> From: CCP4 bulletin board on behalf of Kay Diederichs
> Sent: Sat 7/7/2007 7:30 AM
> To: CCP4BB@JISCMAIL.AC.UK
> Subject: Re: [ccp4bb] how to convert matrix to angle
>
> 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 matrix
> a11 a12 a13
> a21 a22 a23
> a31 a32 a33
>
> then
>
> (a11 + a22 + a33 - 1) / 2
>
> is the cosine of the angle you're looking for.
>
> HTH,
>
> Kay
> --
> Kay Diederichs http://strucbio.biologie.uni-konstanz.de
> email: Kay.Diederichs@uni-konstanz.de Tel +49 7531 88 4049 Fax 3183
> Fachbereich Biologie, Universität Konstanz, Box M647, D-78457 Konstanz
>

--
Jiamu Du
State Key Laboratory of Molecular Biology
Institute of Biochemistry and Cell Biology Shanghai Institutes for
Biological Sciences
Chinese Academy of Sciences (CAS)

CCP4bb navigation

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

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

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