Re: [ccp4bb] Real Space Refine Zone for Ligand

2012-04-16 Thread jens Preben Morth
Hi Dipankar you need to pit a unique identifier for each of your ligands, eg phenix.elbow --smiles=cyclopiazonic_acid.smi --id=CZA --output=cza --opt best Preben On 4/16/12 4:52 AM, Dipankar Manna wrote: Dear Crystallographers, After one round of refinement (restrained refinement) with

[ccp4bb] Off-topic-Cleavage with TEV protease

2012-04-16 Thread Theresa Hsu
Dear all I want to digest a tagged protein with TEV protease, it has disulfide bridges. Is there any way of doing cleavage without DTT? Thank you. Theresa

Re: [ccp4bb] Off-topic-Cleavage with TEV protease

2012-04-16 Thread Tim Gruene
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Dear Theresa, I was not aware you need DTT for TEV protease activity. People do on-column digestion, and as far as I remember, a Ni-column would turn really uglily brown of you used DTT on those columns. Have you tried to leave out DTT and the

Re: [ccp4bb] Off-topic-Cleavage with TEV protease

2012-04-16 Thread Dima Klenchin
I want to digest a tagged protein with TEV protease, it has disulfide bridges. Is there any way of doing cleavage without DTT? Yes, no problem. TEV is slowly inactivated oxidation of the active site cysteine but that's about it. If you absolutely must have no reducer during cleavage, simply

[ccp4bb] sodium vs water near

2012-04-16 Thread chandan kishore
--- On Mon, 24/1/11, Eleanor Dodson c...@ysbl.york.ac.uk wrote: From: Eleanor Dodson c...@ysbl.york.ac.uk Subject: Re: [ccp4bb] Merging statistics and systematic absences To: CCP4BB@JISCMAIL.AC.UK Date: Monday, 24 Jan

Re: [ccp4bb] bulk solvent treatment inside protein cavities

2012-04-16 Thread Garib N Murshudov
Dear Allister Could you please update refmac version. In the version you it seems that bulk solvent mask calculation has some problems. New version (at the moment) can be downloaded from this site: http://www.ysbl.york.ac.uk/refmac/data/refmac_experimental/refmac5.7_linux.tar.gz There is a

Re: [ccp4bb] bulk solvent treatment inside protein cavities

2012-04-16 Thread Eleanor Dodson
Oh dear - this is the version of Refmac in the latest ccp4 release - can this be updated on the web site as soon as possible ? Eleanor On 16 April 2012 12:02, Garib N Murshudov ga...@mrc-lmb.cam.ac.uk wrote: Dear Allister Could you please update refmac version. In the version you it seems

[ccp4bb] iMosflm version 1.0.6 Mosflm version 7.0.8

2012-04-16 Thread Harry Powell
Dear all We are pleased to announce the public release of new versions of iMosflm and Mosflm. We have addressed many bugs and performance issues, and also tidied things up in some of the tasks. If you are using a previous version we strongly recommend that you upgrade. In brief -

Re: [ccp4bb] Off-topic-Cleavage with TEV protease

2012-04-16 Thread Florian Brückner
I have used 5 mM beta-Mercaptoethanol, which is a weaker reducing agent than DTT, and that keeps TEV happy as well. Cheers Florian Am 16.04.2012 um 09:31 schrieb Theresa Hsu: Dear all I want to digest a tagged protein with TEV protease, it has disulfide bridges. Is there any way of

Re: [ccp4bb] Real Space Refine Zone for Ligand

2012-04-16 Thread Paul Emsley
On 16/04/12 03:52, Dipankar Manna wrote: Dear Crystallographers, After one round of refinement (restrained refinement) with ligand, I inport the .cif file through '-Import CIF Dictionary' into Coot. But when I am going for '-Real Space Refine Zone' for the ligand, its showing Refinement set

Re: [ccp4bb] bulk solvent treatment inside protein cavities

2012-04-16 Thread Keitaro Yamashita
Dear Garib, Is there REFMAC option to output solvent mask information (e.g. Fmask and PHImask in mtz to check with Coot)? I tried to generate it by subtracting (FC, PHIC) from (FC_ALL,PHIC_ALL). But I'm not sure that FC_ALL = FC + FMASK is correct or not. Keitaro 2012/4/16 Garib N Murshudov

Re: [ccp4bb] bulk solvent treatment inside protein cavities

2012-04-16 Thread Garib N Murshudov
Yes there is. If you use command line (it is not available on the ccp4i yet). If you run with command lines refmac5 all others like hklin, xyzin etc mskout mask file name eof all options you want eof Then there will be a map and you can visualise it using coot. regards Garib On 16 Apr

Re: [ccp4bb] bulk solvent treatment inside protein cavities

2012-04-16 Thread Garib N Murshudov
A follow up: In the new version there is FC_ALL_LS, PHIC_ALL_LS That should be FC_ALL_LS = FC + FMASK. I have not tried but if you can use vector difference map then it should be: FMASK = FC_ALL_LS - FC But it is after scaling. If you write out mask map then it is just 0 1 map (0 inside

Re: [ccp4bb] iMosflm version 1.0.6 Mosflm version 7.0.8

2012-04-16 Thread Jacob Keller
Where can one find a discussion of the differences between Aimless and Scala? JPK On Mon, Apr 16, 2012 at 8:28 AM, Harry Powell ha...@mrc-lmb.cam.ac.ukwrote: Dear all We are pleased to announce the public release of new versions of iMosflm and Mosflm. We have addressed many bugs and

Re: [ccp4bb] bulk solvent treatment inside protein cavities

2012-04-16 Thread Tallat Hussain Ghazi
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Re: [ccp4bb] bulk solvent treatment inside protein cavities

2012-04-16 Thread Keitaro Yamashita
Dear Garib, Thank you very much for your quick reply. I tried mskout option and the output looked almost the same as the map generated by FC_ALL - FC. By the way, when mskout option is specified, refmac stops before CGMAT cycles. Is there any way to do refinement with mskout option? I have

Re: [ccp4bb] iMosflm version 1.0.6 Mosflm version 7.0.8

2012-04-16 Thread Phil Evans
Aimless is a complete rewrite of Scala, but does essentially the same task. I haven't yet written it up properly, but there is a program document at ftp://ftp.mrc-lmb.cam.ac.uk/pub/pre/aimless.html A rough flow of the program is as follows:- Read file from eg POINTLESS, sort data if

Re: [ccp4bb] bulk solvent treatment inside protein cavities

2012-04-16 Thread Garib N Murshudov
Dear Ketaro At the moment mskout option is a signal that the program should stop. Obviously I can add an option to continue. However if you have mskout option it is likely that you want to check what is going on with the mask. If you want to compare starting and final mask then you could run

Re: [ccp4bb] bulk solvent treatment inside protein cavities

2012-04-16 Thread Keitaro Yamashita
Dear Garib, I think it is better if refmac outputs final solvent mask when mskout specified. If one just wanted to calculate the mask, NCYC 0 should be specified. I hope my suggestion would be accepted, but I'm not in a hurry. FC_ALL is ML scaled FC+FMASK Sometime it may be different from

Re: [ccp4bb] software to generate protein topology diagram like those available at PDBsum webserver

2012-04-16 Thread Parthasarathy Sampathkumar
Dear All, Guillaume Ponchel referred me to ProOrigami (which can be installed locally) to generate protein topology diagrams: http://munk.csse.unimelb.edu.au/pro-origami/ Thanks again. Best wishes, Partha On Mon, Apr 16, 2012 at 12:12 AM, Parthasarathy Sampathkumar spart...@gmail.com

Re: [ccp4bb] Off-topic-Cleavage with TEV protease

2012-04-16 Thread Jason Forse
I've run into the same problem, and found David Waugh's FAQ to be a great resource: http://mcl1.ncifcrf.gov/waugh_tech.html They use a 3mM buffer of 10:1 reduced:oxidized glutathione. I've tried that and it cleaves my protein without reducing reducing the disulfide bridges. I'll second someone

[ccp4bb] Off-pick: suggesiton of puck

2012-04-16 Thread Frank
Hi guys: Recently we need purchase some puck for Actor, unfortunately we can't find any agency in China. I really appreciate that if anyone can give us some suggestion about that? such like brand, price, and necessary accessory? Thanks for help Best regards Frank

Re: [ccp4bb] Off-topic-Cleavage with TEV protease

2012-04-16 Thread Tim Fenn
Also keep in mind that many of the purchased TEVs are formulated with some reducing agent (e.g. AcTEV comes in a buffer with 5mM DTT, if I recall correctly). So unless the enzyme is buffer exchanged beforehand, there will be some reducing agent introduced alongside it, depending on the dilution.

Re: [ccp4bb] Off-pick: suggesiton of puck

2012-04-16 Thread Jim Pflugrath
Rigaku ACTOR robots can accept many different styles of pucks depending on the LN2 dewar baseplate that the particular ACTOR is equipped with. Rigaku in China will sell ACTOR pucks, but if you are looking for ALS-style pucks or ESRF-style pucks or Unipucks or ???, then I am not sure where to