[ccp4bb] off topic about coot crash!

2012-07-23 Thread Jai-Shin Liu
problem in coot, it can't work any more. the message is below: How to fix it? any help will be appreciated. JS (coot-real:2771): Gtk-WARNING **: Unable to locate theme engine in module_path: clearlooks, tk-Message: Failed to load module pk-gtk-module: libpk-gtk-module.so: cannot open shared

Re: [ccp4bb] off topic about coot crash!

2012-07-23 Thread Tim Gruene
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Hello JS, my guess is you need to (re-)install the libcanberra-gtk-module (how to do this depends on you distribution - linux, I guess). Cheers, Tim On 07/23/12 11:39, Jai-Shin Liu wrote: problem in coot, it can't work any more. the message is

Re: [ccp4bb] Urgent Help....REX PALMER

2012-07-23 Thread Mark Williams
This is almost certainly a scam… http://www.guardian.co.uk/money/2011/oct/07/email-fraud-wrecking-charity From: CCP4 bulletin board [mailto:CCP4BB@JISCMAIL.AC.UK] On Behalf Of REX PALMER Sent: 23 July 2012 11:39 To: ccp4bb Subject: [ccp4bb] Urgent HelpREX PALMER How are you doing ? This has

Re: [ccp4bb] Nucleophilic attack by the side-chain carboxyl group of Asp?

2012-07-23 Thread Crystal Xu
Thank you very much for the reply. Actually, no water is observed to coordinate with the zinc ion in the complex structure of the enzyme and a substrate analog. The complex structure is determined at 2.3 Å resolution. Besides, in the complex structure, the zinc ion is already coordinated to six

[ccp4bb] Reminder: PhD position in structural biology at the Free University of Bolzano

2012-07-23 Thread Benini Stefano (P)
Dear All (possible candidates!), A 3 year PhD fellowship is available to a suitable candidate for one of the following projects involving molecular biology and structural biology techniques: Molecular characterization of the bio synthetic pathway of amylovoran, a pathogenicity factor in

Re: [ccp4bb] Urgent Help....REX PALMER

2012-07-23 Thread Ian Tickle
Yes we have just contacted Rex he's nowhere near Spain. Cheers -- Ian On 23 July 2012 12:14, Mark Williams mark.willi...@diamond.ac.uk wrote: This is almost certainly a scam… http://www.guardian.co.uk/money/2011/oct/07/email-fraud-wrecking-charity From: CCP4 bulletin board

[ccp4bb] Structure alignment

2012-07-23 Thread Theresa Hsu
Dear all I have two proteins in PDB each with two subunits. One of the subunits can align well in both. How do I calculate rmsd for the aligned subunits and the other non-align subunits *separately*? Thank you.

Re: [ccp4bb] Structure alignment

2012-07-23 Thread Edwin Pozharski
One of many possible ways is to use rms_cur command in pymol. But fundamentally such number is meaningless, since root mean square deviation is only useful when the average shift between the two structures is (close to) zero. On 07/23/2012 11:06 AM, Theresa Hsu wrote: Dear all I have two

Re: [ccp4bb] Structure alignment

2012-07-23 Thread eugene . krissinel
Dear Theresa, You could use Gesamt from CCP4 6.3.0, which will align a given range of residues in one protein onto a range of residues from another protein. Just run $CCP4/bin/gesamt for usage instructions and selection syntax, or use Structure Superposition from CCP4i. Best, Eugene On 23

Re: [ccp4bb] large difference between r rfree during refinement

2012-07-23 Thread Robbie Joosten
Hi Faisal, It looks like your restraints are simply not tight enough. Try optimizing the restraint weight. You should also run more cycles of refinement to make sure it converges. The initial gap between R and R-free is pretty small. Did you do much refinement before this run? Cheers,

[ccp4bb] Structure Refinement Program

2012-07-23 Thread Scott Foy
Hello Everyone, We are computationally averaging several homologous protein structures into a single structure. This of course will lead to a single protein structure that possesses poor biophysical characteristics of bond lengths, bond angles, steric hindrance, etc. Therefore, we will need a

Re: [ccp4bb] Structure Refinement Program

2012-07-23 Thread Nat Echols
On Mon, Jul 23, 2012 at 9:50 AM, Scott Foy s...@mail.umkc.edu wrote: We are computationally averaging several homologous protein structures into a single structure. This of course will lead to a single protein structure that possesses poor biophysical characteristics of bond lengths, bond

[ccp4bb] linking PLP-Lys

2012-07-23 Thread Rajesh Kumar
Dear All, My friend needs a help.What is the best way to connect Lys to PLP with covalent bond.I am sure there are many ways do it. My friend would appreciate if you could simplify and explain this so that he could learn it without difficulties. Also I could learn I appreciate your time and

Re: [ccp4bb] linking PLP-Lys

2012-07-23 Thread Bernhard Rupp (Hofkristallrat a.D.)
Link statement? LINK NZ LYS A 72 C4A PLP A 500 1555 1555 1.30 There are many examples in the PDB this one 1hkv Best, BR From: CCP4 bulletin board [mailto:CCP4BB@JISCMAIL.AC.UK] On Behalf Of Rajesh Kumar Sent: Monday, July 23, 2012 10:30 AM To:

Re: [ccp4bb] Structure Refinement Program

2012-07-23 Thread Edwin Pozharski
Scott, you are asking for opinions when you should be asking for hard data. CNS, refmac and phenix all can regularize a structural model. If your primary consideration is speed, you should simply try all three and compare cpu time. Cheers, Ed. On 07/23/2012 12:50 PM, Scott Foy wrote:

[ccp4bb] Question on stereo monitor: LG D2342P-PN

2012-07-23 Thread Zhijie Li
Dear CCP4BBers: Sorry to bring up this highly repeated topic again. After some internet research, we are about to make the commitment to buy an LG D2342P-PN for setting up a stereo system. I would like to have a final confirmation from someone with real life experience that this model does

[ccp4bb] Molecular replacement of chimeric protein

2012-07-23 Thread RHYS GRINTER
Hi All, Thanks for the all the advice on my previous question regarding the likely photo-reduction of my crystals. I've now collected a data set on these crystals. The protein is a chimera of two domains of known structure (Ferredoxin domain and Colicin domain), what's the best way to use all

Re: [ccp4bb] linking PLP-Lys

2012-07-23 Thread Garib N Murshudov
Dear Rajesh tutorial on this website is designed exactly for PLP-LYS links http://www.ysbl.york.ac.uk/mxstat/JLigand/index.html regards Garib On 23 Jul 2012, at 18:30, Rajesh Kumar wrote: Dear All, My friend needs a help. What is the best way to connect Lys to PLP with covalent bond.

Re: [ccp4bb] Question about weird diffraction map

2012-07-23 Thread Matthew Franklin
Dear Zhao - This is a salt crystal. You do have spots, even if some of them are streaky, and if you look carefully, you'll see that some of them are arranged in regular lines. However, there are very few, and no spots below about 6 A. This indicates a very small unit cell, with dimensions

Re: [ccp4bb] Question about weird diffraction map

2012-07-23 Thread Bernhard Rupp (Hofkristallrat a.D.)
you'll see that some of them are arranged in regular lines. I am not sure I understand what the line argument implies? indicates a very small unit cell, with dimensions probably 10 A Very indicative also the few strong and isolated high resolution reflections Cheers, BR

Re: [ccp4bb] Problem with making PDB from Coot

2012-07-23 Thread meisam nosrati
Dear CCP4ers It seems like the text has not showed up, but I have a problem with making pdbs from coot. As I refine my structure ( with MR solution ) the beta sheets become loops while H-bondings are still there. I am not sure, if the problem is originating from making PDBs from coot. I will

Re: [ccp4bb] Local service for AKTA explorer in Maryland or east coast

2012-07-23 Thread Yong-Fu Li
Thanks for the inputs from Markus, Kim, and a local friend. Per Jacqueline's request, here is a short list of capable services. 1) James Nathlar, Hopeful, Inc, j...@nathlar.com. Jim is happy to help out, and he is in DC area. 2) ATG Service, Analytical Technologies Group, Ph: 860-449-0886. Jodi

Re: [ccp4bb] Problem with making PDB from Coot

2012-07-23 Thread Paul Emsley
On 23/07/12 22:46, meisam nosrati wrote: Dear CCP4ers It seems like the text has not showed up, but I have a problem with making pdbs from coot. As I refine my structure ( with MR solution ) the beta sheets become loops while H-bondings are still there. I am not sure, if the problem is

Re: [ccp4bb] linking PLP-Lys

2012-07-23 Thread David Cobessi
Dear Rajesh, You do not need to define a link between Lys and PLP: PLP linked to Lys is LLP. You can find examples in PDB. LLP is recognized by Phenix and Refmac. Kind regards, David On 07/23/2012 07:30 PM, Rajesh Kumar wrote: Dear All, My friend needs a help. What is the best way to connect

Re: [ccp4bb] linking PLP-Lys

2012-07-23 Thread bharath SR
Dear Rajesh, We found that LLP has a single bond between C4' and Nz which is not correct for internal aldimine form of PLP. Please use IT1 from RCSB. IT1 also has similarly linked PLP and Lys with the correct double bond. For some other PLP schiff base complexes there are multiple entries in