Re: [ccp4bb] How to generate a complete viirus PDB

2013-04-25 Thread sujata halder
Hi,

In continuation to the previous suggestion about using the 'Oligomer
Generator' in viperdb. To use viperdb, your pdb needs to be in the viper
format. So download any pdb (example this one :
http://viperdb.scripps.edu/cgi-bin/viper_coord.cgi?VDB=1z14) and then
superpose your monomer onto this reference viper format pdband then
upload your 'moved' pdb into the Oligomer generator 'browse' option. Then
select the T number and the option for 60mer, 30mer etc.
If this is an already published pdb then just input the id in the homepage
and then the next page will have options for you to download a
whole capsid or half capsid.

-Tina


On Thu, Apr 25, 2013 at 2:48 AM, Bradley Kearney bmkea...@ncsu.edu wrote:

 Hi Hong,

 ** **

 I would recommend that you check out the services at the VIPERdb website
 http://viperdb.scripps.edu. It looks like the oligomer tool (
 http://viperdb.scripps.edu/oligomer_multi.php) might be useful for what
 you want to do. They have many of the virus structures from the PDB already
 processed for you, or you could upload your own PDB coordinate file.

 ** **

 Brad

 ** **

 ---

 Bradley Kearney, Research Associate

 The Scripps Research Institute

 Department of Integrative Structural and Computational Biology

 Jack Johnson Laboratory

 ** **

 ** **

 *From:* CCP4 bulletin board [mailto:CCP4BB@JISCMAIL.AC.UK] *On Behalf Of *Guan
 Hong Hsiang
 *Sent:* Wednesday, April 24, 2013 11:19 PM
 *To:* CCP4BB@JISCMAIL.AC.UK
 *Subject:* [ccp4bb] How to generate a complete viirus PDB

 ** **

 Dear all:

  I have one subunit PDB of one virus with a NCS record. Which
 program should I use to generate a complete virus PDB using the NCS?


 

 Thank you   Hong Hsiang 



[ccp4bb] phasing with EM map using Amore

2013-02-01 Thread sujata halder
Hi,

I am trying to use a cryo-EM map as a MR model for an Xtal data set. I have
calculated structure factors for my map using SFALL. And then used rotcross
function and translation function searches (from AMORE) to determine the MR
solution. So, finally I got X, Y, Z fractional coordinates and Euler alpha,
beta , gamma.
Usually I start with a coordinate file (pdb) as a model whereas my initial
model is a map. So how am I supposed to apply this solution to the mtz file
from my initial map? Is there is a program/script available that can be
used to apply those rotations and translation to structure factors ?
Or am I proceeding in the wrong direction?
I tried to use Phaser and Molrep but it did not give a solution.
Any help would be highly appreciated.
Thank you.

-Sujata Halder


Re: [ccp4bb] strict structure based alignment

2012-07-13 Thread sujata halder
Hi,

SSM (via PDBefold) (http://www.ebi.ac.uk/msd-srv/ssm/cgi-bin/ssmserver)
will do a structure based alignment and outputs a table of rmsd but will
not give you a alignment file as such.

-Sujata

On Fri, Jul 13, 2012 at 10:30 AM, Christian Roth 
christian.r...@bbz.uni-leipzig.de wrote:

 Dear all,

 I want align a couple or protein structures by secondary structure
 matching to
 one target and want get a kind of aminoacid alignment file e.g. what
 residue fit
 the other, without adjustments due to sequence based alignments.
 I tried Strap, but as far as I understood it, it takes also the sequence
 into
 account. I tried also Rapido, but this does only a pairwise comparison.
 Superpose does align it nicely (ccp4 based or Coot based) but there seems
 to
 be no option to print the sequence alignment in a file and it is again
  just a
 pairwise comparison .
 Is there an other program which does something similar?

 Best Regards

 Christian



Re: [ccp4bb] color for metal ions

2012-05-22 Thread sujata halder
thanks everybody.

On Mon, May 21, 2012 at 1:51 PM, mjvdwo...@netscape.net wrote:

 There is a really nice web site that shows how colors are perceived by
 various color-blind readers. One of the journals I recently published in
 recommends it for consideration. If you are interested, have a look. The
 web site is made especially for people who publish scientific articles with
 color illustrations. It is not hard to be considerate.

 http://jfly.iam.u-tokyo.ac.jp/html/color_blind/

 Mark



 -Original Message-
 From: Artem Evdokimov artem.evdoki...@gmail.com
 To: CCP4BB CCP4BB@JISCMAIL.AC.UK
 Sent: Sun, May 20, 2012 2:54 pm
 Subject: Re: [ccp4bb] color for metal ions

  As long as you are considerate of the needs of colorblind people, I
 would vote that anything goes.
 Artem
 On May 20, 2012 3:17 PM, sujata halder halder.suj...@gmail.com wrote:

 Hi all,

 I was wondering if there is a rule for coloring metal ions a specific
 color. I am using pymol and was not sure if I have to use a specific color
 for calcium or magnesium ions for publication figures.

 Thanks,

 Sujata




[ccp4bb] color for metal ions

2012-05-20 Thread sujata halder
Hi all,

I was wondering if there is a rule for coloring metal ions a specific
color. I am using pymol and was not sure if I have to use a specific color
for calcium or magnesium ions for publication figures.

Thanks,

Sujata


Re: [ccp4bb] Sodium ion vs. Water

2011-08-02 Thread sujata halder
Hi,

I decided to give the server a try...and the output is:

FILE NOT FOUND:
/prod/tmp/individual_validation/output_wasp/25854/bindividual6Na.ion

Either my pdb does not have any metal ions or this server is currently not
working.

Sujata

On Tue, Aug 2, 2011 at 5:04 PM, Sean Seaver s...@p212121.com wrote:

 Hi Christina,

 The WASP server seems to working at this location (about half way down the
page):
 http://www.jcsg.org/prod/scripts/validation/sv2.cgi

 I hope that helps.

 Take Care,

 Sean

 P212121
 http://store.p212121.com/


Re: [ccp4bb] Library description for Pentacoordinated phosphate.

2011-06-10 Thread sujata halder
Hi,

phenix.elbow might work...
from the phenix website:
To run eLBOW on a PDB file (containing one molecule)

phenix.elbow input_file.pdb

To run eLBOW on a PDB file containing protein and ligands. This will only
process the ligands that are unknown to phenix.refine.

phenix.elbow input_file.pdb --do-all


-Tina

On Fri, Jun 10, 2011 at 10:33 AM, pravinkumar jagtap
pravinja...@gmail.comwrote:

 Dear CCP4 users,
 I am trying to get library description for a ligand having a
 pentacoordinated phosphate in it (for modeling a transition state) but
 unable to do so as Sketcher in CCP4 programms fails with an error message of


  ERROR: nt = 4 for 10
  ERRROR: in subroutine CMP_CRD_M
  ERRROR: in subroutine CALC_POLCRD
  ERRROR: in subroutine CREATE_BLCRD


 and the PRODRUG server fails with an error message

 Error in GROMOS atom names/types.

 In Prodrug server, this mainly seems due to the fact that it cant handle
 more than 4 connections/atom. I dont know about sketcher.

 Can anybody advice how to do get library for such a ligand?

 Thanks in advance for any suggestion.

 With regards,
 Pravin Kumar.






Re: [ccp4bb] how convert SF to intensities

2011-05-12 Thread sujata halder
Hi,

Use SFALL to convert coordinates to structure factors...and then use
mtz2various to convert to intensities...use the scalepack format under
mtz2various.

On Thu, May 12, 2011 at 3:13 PM, Fulvio Saccoccia 
fulvio.saccoc...@uniroma1.it wrote:

 Dear ccp4 users,
 I need to generate intensities from a model (.pdb). That is, I think that a
 correct procedure could be to convert model to structure factor and then
 obtain intensities squaring the SF.
 Does anyone know how can I do?

 Thanks in advance

 Fulvio Saccoccia