Re: [ccp4bb] Calculating over all bend in a DNA

2014-10-22 Thread Tim Gruene
Dear Sasha,

you can select two pairs of three corresponding atoms at either end of
the stand and calculate the plane normal of each set. The angle between
the normals would be the overall bend.

Best,
Tim

On 10/21/2014 09:53 PM, Sasha Pausch wrote:
 Hello CCP4bb,
 
 May I know how can we calculate or use any server which can calculate the
 overall bend in a DNA (crystal structure)?
 

-- 
Dr Tim Gruene
Institut fuer anorganische Chemie
Tammannstr. 4
D-37077 Goettingen

GPG Key ID = A46BEE1A



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[ccp4bb] Fwd: Re: [ccp4bb] Calculating over all bend in a DNA

2014-10-22 Thread Tim Gruene
Dear Sasha, dear all,

I meant 'two _sets_ of three atoms each'.

Thanks to Mark for pointing this out to me.

Best,
Tim


 Forwarded Message 
Subject: Re: [ccp4bb] Calculating over all bend in a DNA
Date: Wed, 22 Oct 2014 10:50:10 +0200
From: Tim Gruene t...@shelx.uni-ac.gwdg.de
Reply-To: Tim Gruene t...@shelx.uni-ac.gwdg.de
To: CCP4BB@JISCMAIL.AC.UK

Dear Sasha,

you can select two pairs of three corresponding atoms at either end of
the stand and calculate the plane normal of each set. The angle between
the normals would be the overall bend.

Best,
Tim

On 10/21/2014 09:53 PM, Sasha Pausch wrote:
 Hello CCP4bb,
 
 May I know how can we calculate or use any server which can calculate the
 overall bend in a DNA (crystal structure)?
 

-- 
Dr Tim Gruene
Institut fuer anorganische Chemie
Tammannstr. 4
D-37077 Goettingen

GPG Key ID = A46BEE1A







signature.asc
Description: OpenPGP digital signature


Re: [ccp4bb] Calculating over all bend in a DNA

2014-10-22 Thread Valerie Pye
Hi Sasha - you can use 3DNA:  http://x3dna.org/; http://w3dna.rutgers.edu/
HTH, val

On 21 October 2014 20:53, Sasha Pausch sashapau...@gmail.com wrote:

 Hello CCP4bb,

 May I know how can we calculate or use any server which can calculate the
 overall bend in a DNA (crystal structure)?




Re: [ccp4bb] Calculating over all bend in a DNA

2014-10-22 Thread Mooers, Blaine H.M. (HSC)
Hi Sasha,

You can also use Richard Lavery's webservice for Curves+ ( 
http://gbio-pbil.ibcp.fr/cgi/Curves_plus/  ) and visualize the curve of the 
helical axis in 3D in a molecular graphics program.

In addition, you can do a normal vector analysis similar to the one suggested 
by Tim Gruene by running FREEHELIX by Richard Dickerson which has been 
available through the fink depository and which could be found this morning at 
the Nucleic Acid Databank via 
http://ndbserver.rutgers.edu/files/ftp/NDB/programs/freehelix98.
Linux binaries and the source code are available. I was able to compile from 
source code on a Mac several years ago.

Examples of our use of these programs as applied to two RNAs are found in
PMID:
21878548.

Best regards,

Blaine

Blaine Mooers, Ph.D.
Assistant Professor
Department of Biochemistry and Molecular Biology
University of Oklahoma Health Sciences Center
S.L. Young Biomedical Research Center Rm. 466

Shipping address:
975 NE 10th Street, BRC 466
Oklahoma City, OK 73104-5419

Letter address:
P.O. Box 26901, BRC 466
Oklahoma City, OK 73190

office: (405) 271-8300   lab: (405) 271-8313  fax:  (405) 271-3910
e-mail:  blaine-moo...@ouhsc.edu

Faculty webpage: 
http://www.oumedicine.com/department-of-biochemistry-and-molecular-biology/faculty/blaine-mooers-ph-d-

Small Angle Scattering webpage: 
http://www.oumedicine.com/docs/default-source/ad-biochemistry-workfiles/small-angle-scattering-links-27aug2014.html?sfvrsn=0

X-ray lab webpage: 
http://www.oumedicine.com/department-of-biochemistry-and-molecular-biology/department-facilities/macromolecular-crystallography-laboratory



From: CCP4 bulletin board [CCP4BB@JISCMAIL.AC.UK] on behalf of Valerie Pye 
[val...@googlemail.com]
Sent: Wednesday, October 22, 2014 6:10 AM
To: CCP4BB@JISCMAIL.AC.UK
Subject: Re: [ccp4bb] Calculating over all bend in a DNA

Hi Sasha - you can use 3DNA:  
http://x3dna.org/https://urldefense.proofpoint.com/v1/url?u=http://x3dna.org/k=7DHVT22D9IhC0F3WohFMBA%3D%3D%0Ar=ftLbjJYpc5s5JQz9Q6qd7uT7FxPLb4V0aIwH4RJhyZU%3D%0Am=W0wpHNp%2B8HgFTfPnP6qooGcmzdq8AE7MNR43ZgeBMfQ%3D%0As=af3103f233522fb093353110ed7e13d1eed31bf25752556b48cba4b59d77da85;
 
http://w3dna.rutgers.edu/https://urldefense.proofpoint.com/v1/url?u=http://w3dna.rutgers.edu/k=7DHVT22D9IhC0F3WohFMBA%3D%3D%0Ar=ftLbjJYpc5s5JQz9Q6qd7uT7FxPLb4V0aIwH4RJhyZU%3D%0Am=W0wpHNp%2B8HgFTfPnP6qooGcmzdq8AE7MNR43ZgeBMfQ%3D%0As=cbdb78f021cd77670fe306d17f761286b2f1c9550d9e296f664f0dac18f60b2e
HTH, val

On 21 October 2014 20:53, Sasha Pausch 
sashapau...@gmail.commailto:sashapau...@gmail.com wrote:
Hello CCP4bb,

May I know how can we calculate or use any server which can calculate the 
overall bend in a DNA (crystal structure)?




Re: [ccp4bb] Calculating over all bend in a DNA

2014-10-22 Thread Sasha Pausch
Hello CCP4bb,


Based on suggestions from the members of CCP4bb, I used program
Curves+ to check the bend (angle) in DNA.

I have given my DNA which has two strands and 13 bases each as an
input. I got an output file where I can see other parameters inferred
from the structure.

But I am getting a message at the end of the output file which I
believe gives me answer for my question.


 (E) Groove parameters

No groove analysis: Pabsent in strand = 1 at level =  11


Please indicate to me what could be the error in this?


Thank you all for answers,


On Wed, Oct 22, 2014 at 2:20 PM, Tim Gruene t...@shelx.uni-ac.gwdg.de wrote:

 Dear Sasha,

 you can select two pairs of three corresponding atoms at either end of
 the stand and calculate the plane normal of each set. The angle between
 the normals would be the overall bend.

 Best,
 Tim

 On 10/21/2014 09:53 PM, Sasha Pausch wrote:
  Hello CCP4bb,
 
  May I know how can we calculate or use any server which can calculate the
  overall bend in a DNA (crystal structure)?
 

 --
 Dr Tim Gruene
 Institut fuer anorganische Chemie
 Tammannstr. 4
 D-37077 Goettingen

 GPG Key ID = A46BEE1A




[ccp4bb] Calculating over all bend in a DNA

2014-10-21 Thread Sasha Pausch
Hello CCP4bb,

May I know how can we calculate or use any server which can calculate the
overall bend in a DNA (crystal structure)?