Re: [ccp4bb] Sodium ion vs. Water

2011-08-03 Thread Robbie Joosten
The server seems to be up again. Give it another try. Cheers, Robbie Date: Tue, 2 Aug 2011 12:43:43 -0700 From: bourn...@yahoo.com Subject: Re: [ccp4bb] Sodium ion vs. Water To: robbie_joos...@hotmail.com; CCP4BB@JISCMAIL.AC.UK Hi Robbie and all

[ccp4bb] Sodium ion vs. Water

2011-08-02 Thread Young-Jin Cho
Dear CCP4 experts, I would like to ask if there is a clear way to distinguish Na+ and HOH molecules in the electron density map. The table I have suggests Na to O distance lies between 2.35 and 2.45 that is very hard to discern the difference of these two candidates. Na+ may have several

Re: [ccp4bb] Sodium ion vs. Water

2011-08-02 Thread Jacob Keller
I asked the CCP4 experts this question a while back--maybe try searching the archive? There were some very helpful comments. Jacob On Tue, Aug 2, 2011 at 1:24 PM, Young-Jin Cho yj...@brandeis.edu wrote: Dear CCP4 experts, I would like to ask if there is a clear way to distinguish Na+ and HOH

Re: [ccp4bb] Sodium ion vs. Water

2011-08-02 Thread Robbie Joosten
: [ccp4bb] Sodium ion vs. Water To: CCP4BB@JISCMAIL.AC.UK Dear CCP4 experts, I would like to ask if there is a clear way to distinguish Na+ and HOH molecules in the electron density map. The table I have suggests Na to O distance lies between 2.35 and 2.45 that is very hard to discern

Re: [ccp4bb] Sodium ion vs. Water

2011-08-02 Thread Christina Bourne
, August 2, 2011 2:20 PM Subject: Re: [ccp4bb] Sodium ion vs. Water Dear Young-Jin, If you model it as water, you can use WASP. It's an old program but still accesible here: http://xray.bmc.uu.se/cgi-bin/gerard/rama_server.pl Cheers, Robbie Date: Tue, 2

Re: [ccp4bb] Sodium ion vs. Water

2011-08-02 Thread Sean Seaver
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] 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

Re: [ccp4bb] Sodium ion vs. Water

2011-08-02 Thread Sean Seaver
Hi Jacob, Darn that site doesn't seem to be working. I generated the files ion files and thought it was good to go, but didn't view the outputs. Apologies, Sean Seaver P212121 http://store.p212121.com/

Re: [ccp4bb] Sodium ion vs. Water

2011-08-02 Thread ccp4
Search for Metal Cordination sites in Proteins. It takes you to a site set up by Marjorie Harding which gives a table of known metal coordination extracted from the PDB including Na. Of course there may be errors in the PDB entries but it is very helpful I find Eleanorr On Tue, 2 Aug 2011