[ccp4bb] Group Leader position in Helsinki, Finland

2015-03-18 Thread Tommi Kajander
and detailed contacts, please visit www.biocenter.helsinki.fi/bi/recruit or contact bi‐direc...@helsinki.fi. www.biocenter.helsinki.fi/bi Tommi Kajander, Ph.D. Team Leader Structural Biology and Biophysics Institute of Biotechnology University of Helsinki Viikinkaari 1 (P.O. Box 65) 00014

[ccp4bb] GL position available/Finland

2015-03-10 Thread Tommi Kajander
FYI, on behalf of the search committee (see links below): The Institute of Biotechnology is a leading European research institute within the University of Helsinki with a mission to increase knowledge in cross‐disciplinary biology and biotechnology. The Institute has state‐ofthe‐art

Re: [ccp4bb] modeling flexible ends on proteins

2014-10-29 Thread Tommi Kajander
don't show interpretable density in that region. I would call everything else 'tabloid science'. Cheers, Tim On 10/24/2014 04:11 PM, Michal Jamroz wrote: Dnia 2014-10-22, o godz. 15:43:18 Tommi Kajander tommi.kajan...@helsinki.fi napisał(a): Would anyone know a software to model

[ccp4bb] modeling flexible ends on proteins

2014-10-22 Thread Tommi Kajander
Hi All, Would anyone know a software to model (just with some kind of random coil) the amino acid chain for the assumed flexible disorderd regions between domains, or at one end of protein? just for illustrative purposes. Thanks! Tommi

[ccp4bb] Stereo on macs revisited

2014-10-15 Thread Tommi Kajander
Dear All, Can someone sugegst what would be the best options for stereo viewing for macs currently? Any good experiences with Stereo-TVs? Other? I would like know the specific combination (at least which mac computer etc) if possible to find out something that works. Thanks, Tommi Tommi

[ccp4bb] Post doctoral position at the protein crystallization core facility / Institute of Biotechnology, University of Helsinki

2014-07-11 Thread Tommi Kajander
A postdoctoral position is available in the Biocenter Finland Crystallization Core Facility, in the research group of Dr. Tommi Kajander at the institute of Biotechnology at University of Helsinki, Finland. The position is funded for two years starting from September 2014. The position

[ccp4bb] Post doctoral position at Institute of Biotechnology, Univ. Helsinki

2014-06-17 Thread Tommi Kajander
A postdoctoral position in structural biology is available from Sept 2014 earliest in the research group lead by Tommi Kajander at Institute of Biotechnology, University of Helsinki, Finland. The position is funded by the Academy of Finland at the Finnish university salary scale 5

[ccp4bb] best transient mammalian expression systems..?

2013-03-28 Thread Tommi Kajander
Dear all, I would be interested in comments/opinions about what is your experience on which would be the best mammalian cell culture vector/cell line/medium combination for transient expression to get the best yields. Depends, of course, but anyway obviously there are differences, HEKs are

Re: [ccp4bb] How to convert file format from CNS to CCP4

2013-03-24 Thread Tommi Kajander
Ok. you filled my mailbox the second time today - please do stop sending junk to the list. -tommi On Mar 23, 2013, at 3:59 PM, Wei Feng wrote: Dear Steffi, Thank you very much for you patient reply! I have tried to use your script to convert the map format, but no ***omit_map.coeff can

Re: [ccp4bb] Assemble Protein-DNA complex

2012-11-09 Thread Tommi Kajander
/3ix2ln69wZz74LWwaPMdBhFQCfS9C6 nvrZMfMmeekAauJ26jy6jbE= =nbV+ -END PGP SIGNATURE- Tommi Kajander, Ph.D., Docent Structural Biology and Biophysics Institute of Biotechnology University of Helsinki Viikinkaari 1 (P.O. Box 65) 00014 Helsinki Finland p. +358-9-19158903 tommi.kajan...@helsinki.fi http

[ccp4bb] solubility estimates for domains/structures?

2012-10-12 Thread Tommi Kajander
Hi all, Does anyone a program/paper that would give some quantitative estimate for protein solubility based on surface property analysis? (excluding obvious things such as integral membrane / TM regions) Best Tommi

Re: [ccp4bb] solubility estimates for domains/structures?

2012-10-12 Thread Tommi Kajander
://scratch.proteomics.ics.uci.edu/ Or http://mips.helmholtz-muenchen.de/proso/proso.seam http://www.biotech.ou.edu/ Thanks, Debanu -Original Message- From: CCP4 bulletin board [mailto:CCP4BB@JISCMAIL.AC.UK] On Behalf Of Tommi Kajander Sent: Friday, October 12, 2012 10:23 AM

Re: [ccp4bb] @Ian:Death of Rmerge

2012-06-04 Thread Tommi Kajander
well, actually i recommend having a look at the old but good scalepack manual for why Rmerge is inferior.. (i thought this was clear long ago.. so i am bit amazed that this discussio is still alive and kicking..) question of where to cut, is a different one and thats where the recent papers

Re: [ccp4bb] Akta vs HPLC

2012-05-30 Thread Tommi Kajander
if you have peek surface or titanium parts (if i recall right) there are no problems with salt solutions. tommi On May 30, 2012, at 3:39 AM, aaleshin wrote: Back in Iowa State University we used Waters HPLC for protein purification during many years without noticeable damage to the

[ccp4bb] nanodrop vs larger vol measurenment of absorbance?

2012-05-18 Thread Tommi Kajander
, but i havent done a systemic test. (which now seems like a good idea.. as the samples are _quite precious_ and i certainly want to keep a track of them all the way through) --Observations? (and yes we do 2 ul samples with nanodrop.) Thanks in advance, Best, T. Tommi Kajander, Ph.D

Re: [ccp4bb] Freezing crystal

2012-02-05 Thread Tommi Kajander
if you use oil do direct dry Paratone-N, with paraffin oil is not as good. Li-salts should work also - i would almos imgaine you can freeze directly from so high (NH4)2SO4 conc. but perhaps not. little bit (10%) glycerol probably does it also.. Tommi On Feb 6, 2012, at 12:55 AM, Vineet Gaur

[ccp4bb] mask effects in solvent flattening / NCS

2012-01-12 Thread Tommi Kajander
.) --would like to be able to correct this. Thanks for comments. Cheers, Tommi Tommi Kajander, Ph.D. Structural Biology and Biophysics Institute of Biotechnology University of Helsinki Viikinkaari 1 (P.O. Box 65) 00014 Helsinki Finland p. +358-9-19158903 tommi.kajan...@helsinki.fi

Re: [ccp4bb] density mod., NSC and software..

2011-12-21 Thread Tommi Kajander
would need to get the averaging to work first... ) Tommi Kajander, Ph.D., Docent Structural Biology and Biophysics Institute of Biotechnology University of Helsinki Viikinkaari 1 (P.O. Box 65) 00014 Helsinki Finland p. +358-9-19158903 tommi.kajan...@helsinki.fi On Dec 21, 2011, at 12:56 PM

[ccp4bb] density mod., NSC and software..

2011-12-20 Thread Tommi Kajander
...) favorite programs for NCS averiging?? DM obviously, and solomon doesnt do it. Others that do it (with out a PDB or atoms to derive it from, but rather operators) Thanks, Tommi Tommi Kajander, Ph.D., Docent Structural Biology and Biophysics Institute of Biotechnology University of Helsinki

Re: [ccp4bb] symmetry for ages 6 and up

2011-12-13 Thread Tommi Kajander
Training Program email: j-kell...@northwestern.edu *** Tommi Kajander, Ph.D., Docent Structural Biology and Biophysics Institute of Biotechnology University of Helsinki Viikinkaari 1 (P.O. Box 65) 00014 Helsinki Finland p. +358-9-19158903 tommi.kajan

[ccp4bb] ncs axis translation

2011-11-25 Thread Tommi Kajander
Hi, anybody have a script to to find a translation for 2-fold NCS (rotaion) axis based on the center of NCS symmetry..?? (ie to the midpoint of line between to heavy atoms) This search option doenst seem to be endoed anywhere (why??) ...stupid me... Thanks, tommi

[ccp4bb] sftools bug

2011-11-16 Thread Tommi Kajander
Hi, if you change crystal infro (SG P2 -- P21) and column labels at the same time F col label (like FP) cant be changed to anything else at the same time for whatever reason... at least i had this prob. ccp4 vs 6.2 tommi

Re: [ccp4bb] small 3ml Superdex column performance

2011-10-16 Thread Tommi Kajander
broadening when using these small columns with a regular fplc (rather than Akta's microFPLC)? I would greatly appreciate your comments! Many thanks... Bests, Alex . Tommi Kajander, Ph.D. Structural Biology and Biophysics Institute of Biotechnology University of Helsinki Viikinkaari 1 (P.O

Re: [ccp4bb] detect dsDNA

2011-10-02 Thread Tommi Kajander
with SYBR Safe? JPK *** Jacob Pearson Keller Northwestern University Medical Scientist Training Program cel: 773.608.9185 email: j-kell...@northwestern.edu *** Tommi Kajander, Ph.D. Junior Group Leader Structural

Re: [ccp4bb] question regarding secondary-structure restraints

2011-09-26 Thread Tommi Kajander
-Universität München Feodor-Lynen-Str. 25 D-81377 Munich Germany Phone: +49-89-2180-76845 Fax:+49-89-2180-76999 E-mail: kostr...@genzentrum.lmu.de WWW:www.genzentrum.lmu.de *** Tommi Kajander, Ph.D. Structural Biology and Biophysics

Re: [ccp4bb] low res. SAD phasing

2011-06-16 Thread tommi kajander
:36:59PM +0300, tommi kajander wrote: Dear all, Does anyone have suggestions for 6 Å resolution phasing with large number (40-50) Se sites (SAD so far)?? Thanks a bunch, Tommi Tommi Kajander, Ph.D., Docent Macromolecular X-ray Crystallography Research Program in Structural Biology and Biophysics

Re: [ccp4bb] Nanodrop versus Nanophotomter Pearl versus good old Bradford.

2011-06-16 Thread Tommi Kajander
I would add that there are some issues with air, you have to be careful with nanodrop that the path is ok, and also if concentrations are low, 1 mg/ml for instance, i am not sure one can trust it - compare 50 ul 1 cm path results with nano at 0.5-1 mg/ml... i get inconsistency there.. its good

[ccp4bb] low res. SAD phasing

2011-06-15 Thread tommi kajander
Dear all, Does anyone have suggestions for 6 Å resolution phasing with large number (40-50) Se sites (SAD so far)?? Thanks a bunch, Tommi Tommi Kajander, Ph.D., Docent Macromolecular X-ray Crystallography Research Program in Structural Biology and Biophysics Institute of Biotechnology P.O

Re: [ccp4bb] off topic: problematic protein

2011-04-20 Thread Tommi Kajander
of the thread. Best regards Savvas et al. Savvas Savvides Unit for Structural Biology @ L-ProBE Ghent University K.L. Ledeganckstraat 35, 9000 Ghent, Belgium Tel/SMS/texting +32 (0)472 928 519 Skype: savvas.savvides_skype http://www.LProBE.ugent.be/xray.html Tommi Kajander, Ph.D. Structural

Re: [ccp4bb] what to do with disordered side chains

2011-04-03 Thread Tommi Kajander
...@northwestern.edumailto:j-kell...@northwestern.edu *** Tommi Kajander, Ph.D. Structural Biology and Biophysics Institute of Biotechnology University of Helsinki Viikinkaari 1 (P.O. Box 65) 00014 Helsinki Finland p. +358-9-19158903 tommi.kajan...@helsinki.fi

Re: [ccp4bb] [OT] which column to use in SLS/MALS instruments

2011-03-08 Thread Tommi Kajander
University Medical Scientist Training Program cel: 773.608.9185 email: j-kell...@northwestern.edu *** Tommi Kajander, Ph.D. Structural Biology and Biophysics Institute of Biotechnology University of Helsinki Viikinkaari 1 (P.O. Box 65) 00014 Helsinki Finland p

Re: [ccp4bb] CCP4 for iphones

2011-02-25 Thread Tommi Kajander
The Netherlands Tel. +31-30-253-2383 -- Xiaoguang Xue, PhD student Utrecht University Crystal Structural Chemistry Padualaan 8. Room N807 3584 CH Utrecht The Netherlands Tel. +31-30-253-2383 Tommi Kajander, Ph.D. Structural Biology and Biophysics Institute of Biotechnology University of Helsinki

[ccp4bb] MALLS analysis question

2011-02-18 Thread tommi kajander
be happy to hear if anyone had similar problems Thanks! tommi Tommi Kajander, Ph.D., Docent Macromolecular X-ray Crystallography Research Program in Structural Biology and Biophysics Institute of Biotechnology P.O. Box 65 (Street: Viikinkaari 1, 4th floor) University of Helsinki FIN-00014

[ccp4bb] The 2nd Advanced Protein Characterisation and Crystallisation Course in Helsinki, Finland

2011-02-09 Thread tommi kajander
, Tommi Kajander, Ph.D., Docent Macromolecular X-ray Crystallography Research Program in Structural Biology and Biophysics Institute of Biotechnology P.O. Box 65 (Street: Viikinkaari 1, 4th floor) University of Helsinki FIN-00014 Helsinki, Finland Tel. +358-9-191 58903 Fax +358-9-191 59940

Re: [ccp4bb] Se-Met Protein Purification

2011-01-25 Thread tommi kajander
I think the likely reason here are the points where you did the mutations having adverse effects - how do the mutants behave without labeling? this would be of course an important control... -Tommi On 25.1.2011, at 12.52, Paula Salgado wrote: Dear Abhilash You could try an alternative

Re: [ccp4bb] Space group and R/Rfree value

2010-12-01 Thread Tommi Kajander
will be appreciated!! Best wishes, Xiaopeng Hu Harry -- Dr Harry Powell, MRC Laboratory of Molecular Biology, Hills Road, Cambridge, CB2 0QH Tommi Kajander, Ph.D. Structural Biology and Biophysics Institute of Biotechnology University of Helsinki Viikinkaari 1 (P.O. Box 65) 00014 Helsinki

[ccp4bb] met auxotroph S.cerevisiae strain?

2010-10-05 Thread tommi kajander
Hello all, Would anyone happen to have a met auxotroph S. cerevisaea strain at hand that you could send some of to us for testing Semet labelling? Thanks very much! Regards, Tommi Tommi Kajander, Ph.D., Macromolecular X-ray Crystallography Research Program in Structural Biology

[ccp4bb] LS / RI detector systems

2010-06-20 Thread Tommi Kajander
overall of the different manufacturers equipments accuracy, etc... e.g. viscometer seems rather unnessary to me, as does online DLs.. Thanks for comments, Tommi -- Tommi Kajander, Ph.D., Docent Macromolecular X-ray Crystallography Research Program in Structural Biology and Biophysics Institute

Re: [ccp4bb] insect cell media

2010-06-07 Thread Tommi Kajander
and filters. So it all pays off only of you need large scale cultures long-term. If you are aware of a dry serum-free insect cells medium, please let me know - I'd love to try it. Dima Tommi Kajander, Ph.D. Structural Biology and Biophysics Institute of Biotechnology University of Helsinki Viikinkaari 1

Re: [ccp4bb] SCA

2010-01-18 Thread Tommi Kajander
be as a toolbox of Matlab software. Thank you in advance, Azadeh -- Tommi Kajander, Ph.D. Macromolecular X-ray Crystallography Research Program in Structural Biology and Biophysics Institute of Biotechnology P.O. Box 65 (Street address: Viikinkaari 1, 4th floor) University of Helsinki FIN

Re: [ccp4bb] FW: pdb-l: Retraction of 12 Structures....

2009-12-11 Thread Tommi Kajander
Would the exact analysis of how each of these things were wrong and fabricated be somewhere available Would be fair (apart from the known case of C3b) to have the whole analysis available instead of just this kind of news feed. I suspect its not obvious by five minute check in all cases.

[ccp4bb] UV detection of crystals/survey

2009-12-03 Thread tommi kajander
very much for comments, Tommi Tommi Kajander, Ph.D., Docent Macromolecular X-ray Crystallography Research Program in Structural Biology and Biophysics Institute of Biotechnology P.O. Box 65 (Street: Viikinkaari 1, 4th floor) University of Helsinki FIN-00014 Helsinki, Finland Tel. +358-9-191 58903

[ccp4bb] phenix rigid body ref.

2009-11-26 Thread Tommi Kajander
Apologies, i know this is not phenix bb but since i am here (and not subscr. there), does anyone know how to control rigid body ref positions in phenix.refine, i am trying to do very low res check (6 Å) with quite many molecules, and they start landing on each other while the MR solution

Re: [ccp4bb] phenix rigid body ref.

2009-11-26 Thread Tommi Kajander
for the rigid body refinement because at 6A you only have so many reflections) Best Jacques Le Nov 26, 2009 à 8:32 PM, Tommi Kajander a écrit : Apologies, i know this is not phenix bb but since i am here (and not subscr. there), does anyone know how to control rigid body ref positions

[ccp4bb] arpwarp improve maps

2009-11-13 Thread Tommi Kajander
Hi, the latest arpwarp via ccp4 6.1.2 GUI on Mac OS X 10.5 something does not work, it wants a sequence file which isnt an option in the GUI... (you put in the coordinates and update them thats all right?) i just want to improve the maps if possible. also the model if possible.. flex-warp

[ccp4bb] loop modelling?

2009-11-01 Thread Tommi Kajander
Dear all I was wondering if anyone knows a simple way to generate a missing loop (strech of amino acids) really in just some simple manner (no fancy minization necessary, of course some constraints probably dont hurt), just for visualization purposes of further simulations etc thanks!

Re: [ccp4bb] Anomalous map creating

2009-10-27 Thread Tommi Kajander
cannot find how to fix this. It have also one more warning message - * Missing value set to NaN in input mtz file but as I read it is not a problem - mtz is still readable. I would be glad for any help or advice. Thanks. Sergii P.S. Please, find attached mtz and logs. Tommi Kajander

Re: [ccp4bb] How to compare the binding affinity between two domains structurally?

2009-10-27 Thread Tommi Kajander
-- Tommi Kajander, Ph.D. Macromolecular X-ray Crystallography Research Program in Structural Biology and Biophysics Institute of Biotechnology P.O. Box 65 (Street address: Viikinkaari 1, 4th floor) University of Helsinki FIN-00014 Helsinki, Finland Tel. +358-9-191 58903 Fax +358-9-191 59940

[ccp4bb] MOLREP

2009-09-30 Thread Tommi Kajander
Hi, I have been using a dimer as a search model in MOLREP (there will be several in AU), for some reason the program tends to break the dimer into monomers wihtout asking me.. how is this determined in the program... a more detailed manual would be nice, also on the output as the different

Re: [ccp4bb] MSA formatting...

2009-09-14 Thread tommi kajander
a bit easier. Tim Tommi Kajander, Ph.D. Macromolecular X-ray Crystallography Research Program in Structural Biology and Biophysics Institute of Biotechnology P.O. Box 65 (Street: Viikinkaari 1, 4th floor) University of Helsinki FIN-00014 Helsinki, Finland Tel. +358-9-191 58903 Fax +358-9-191 59940

[ccp4bb] MSA formatting

2009-09-13 Thread Tommi Kajander
is simply combining lines which start with same set of characters (ID) but removing the IDs codes from everyelse but the beginning. i am not much of a script writer obivously Thanks a bunch! Tommi Tommi Kajander Structural Biology and Biophysics Institute of Biotechnology University

Re: [ccp4bb] MSA formatting...

2009-09-13 Thread Tommi Kajander
.. tommi On Sep 13, 2009, at 3:52 PM, Tommi Kajander wrote: Hi, off-crystal topic: i was wondering if anyone has a simple solution to combining e.g. CLUSTAL etc ouput files to format (ie idcodes then 60 residues strech and start again below the same...) ...that has only one line per sequence

Re: [ccp4bb] Problems with phasing a protein (1300aa)

2009-03-21 Thread Tommi Kajander
with decent data. BR -Original Message- From: CCP4 bulletin board [mailto:ccp...@jiscmail.ac.uk] On Behalf Of Tommi Kajander Sent: Friday, March 20, 2009 3:43 PM To: CCP4BB@JISCMAIL.AC.UK Subject: Re: [ccp4bb] Problems with phasing a protein (1300aa) this cant be true, in the idea case

Re: [ccp4bb] Problems with phasing a protein (1300aa)

2009-03-20 Thread Tommi Kajander
(Space group I222 or I212121). But we are having tough time phasing it. ... Tommi Kajander, Ph.D. Structural Biology and Biophysics Institute of Biotechnology University of Helsinki Viikinkaari 1 (P.O. Box 65) 00014 Helsinki Finland p. +358-9-19158903 tommi.kajan...@helsinki.fi

Re: [ccp4bb] Small lines in diffraction pattern (more info)

2009-01-29 Thread Tommi Kajander
For this discussion another relevant reference might be: The 1.8 A crystal structure of a statically disordered 17 base-pair RNA duplex: principles of RNA crystal packing and its effect on nucleic acid structure. Shah SA, Brunger AT. J Mol Biol. 1999 Jan 29;285(4):1577-88. -tommi On Jan

Re: [ccp4bb] O/T: can a protein which dimerizes in solution crystallize as a monomer?

2008-12-11 Thread Tommi Kajander
, where the protein is a monomer in solution (as evident from light scattering, MW determination through centrifugation, EPR, etc.) but crystallizes as a dimer or higher multimer? Bernie Santarsiero -- Tommi Kajander, Ph.D. Macromolecular X-ray Crystallography Research Program in Structural

Re: [ccp4bb] Protein folding pattern schematic

2008-11-10 Thread Tommi Kajander
with secondary structure assigned from DSSP. Thanks! Charu Mayer lab/NIH -- MRC National Institute for Medical Research Division of Molecular Structure The Ridgeway, NW7 1AA, UK Email: [EMAIL PROTECTED] Phone: + 44 208 816 2515 Tommi Kajander, Ph.D. Structural Biology and Biophysics

[ccp4bb] recipees for prep of test derivatives

2008-09-23 Thread Tommi Kajander
enough for demonstration purposes, so we need more) Thanks very much! best, Tommi Tommi Kajander, Ph.D. Structural Biology and Biophysics Institute of Biotechnology University of Helsinki Viikinkaari 1 (P.O. Box 65) 00014 Helsinki Finland p. +358-9-19158903 [EMAIL PROTECTED]

[ccp4bb] test data sets part II...

2008-09-23 Thread Tommi Kajander
Also, i think that would be nice if this type of info could be put on the web, part of the wiki for instance.. if there is some consensus to what works + the typical proteins easily available. Tommi Kajander, Ph.D. Structural Biology and Biophysics Institute of Biotechnology University

Re: [ccp4bb] Progresss with Stereo 3D under Mac OS X Leopard

2008-09-17 Thread Tommi Kajander
Answer: 8) Is there any software you would like to have available in the computing environment to assist you in molecular model building and/or visualization that is not currently available? Answer: Thank you for your time. Tommi Kajander, Ph.D. Structural Biology and Biophysics

[ccp4bb] baculovirus GFP vectors

2008-07-07 Thread Tommi Kajander
system for more efficient recombinant protein production in insect cells. Protein Expr Purif. 2005 Jul;42(1):211-8 or if i can reach one of the authors is reachable this way and willing to send some material i would be greatful. thank you, tommi -- Tommi Kajander, Ph.D. Macromolecular X-ray

Re: [ccp4bb] Concentrating protein

2008-06-27 Thread Tommi Kajander
://bmb.bsd.uchicago.edu/Faculty_and_Research/01_Faculty/01_Faculty_Alphabetically.php?faculty_id=123 RNA is really nifty DNA is over fifty We have put them both in one book Please do take a really good look http://www.rsc.org/shop/books/2008/9780854042722.asp -- Tommi Kajander

Re: [ccp4bb] Concentrating protein

2008-06-27 Thread Tommi Kajander
, -- Roger S. Rowlett Professor Colgate University Presidential Scholar Department of Chemistry Colgate University 13 Oak Drive Hamilton, NY 13346 tel: (315)-228-7245 ofc: (315)-228-7395 fax: (315)-228-7935 email: [EMAIL PROTECTED] Tommi Kajander wrote: couldnt agree more.. just

Re: [ccp4bb] about anisotrophic diffraction

2008-06-24 Thread Tommi Kajander
Ammonium Sulfate. Thank you so much. Ji -- Tommi Kajander, Ph.D. Macromolecular X-ray Crystallography Research Program in Structural Biology and Biophysics Institute of Biotechnology P.O. Box 65 (Street address: Viikinkaari 1, 4th floor) University of Helsinki FIN-00014 Helsinki, Finland

Re: [ccp4bb] Fwd: [ccp4bb] crystallisation and mosaicity

2008-06-05 Thread Tommi Kajander
plunging. The best way to freeze things is to put a small container of liquid ethane or propane into a liquid N2 bowl, and plunge into the ethane/propane (this methods was suggested earlier). Petr -- Tommi Kajander, Ph.D. Macromolecular X-ray Crystallography Research Program

Re: [ccp4bb] mosaicity,was:crystallisation

2008-06-03 Thread Tommi Kajander
___ -- Tommi Kajander, Ph.D. Macromolecular X-ray Crystallography Research Program in Structural Biology and Biophysics Institute of Biotechnology P.O. Box 65 (Street address: Viikinkaari 1, 4th floor) University of Helsinki FIN-00014 Helsinki, Finland Tel. +358-9-191 58903 Fax

Re: [ccp4bb] space group problem

2008-05-01 Thread Tommi Kajander
: 3163 Life Sciences Institute, University of Michigan, 210 Washtenaw Avenue Ann Arbor, MI, 48109-2216 Phone: 734-615-2078 == -- Tommi Kajander, Ph.D. Macromolecular X-ray Crystallography Research Program in Structural Biology and Biophysics Institute

Re: [ccp4bb] isopropanol as a precipitant

2008-03-05 Thread Tommi Kajander
lt.Numerous xtals appears and but small is size.Do anyone can share their experience with Isopropanol as a precipitant and to improve the xtal quality with other precipitants.All suggestions are welcome. Thanx in advance. Shivesh -- Tommi Kajander, Ph.D. Macromolecular X-ray

Re: [ccp4bb] rescuing crashing-out protein eluted from Nickel column

2008-02-15 Thread Tommi Kajander
for me? Thanks very much, -J.J. -- Tommi Kajander, Ph.D. Macromolecular X-ray Crystallography Research Program in Structural Biology and Biophysics Institute of Biotechnology P.O. Box 65 (Street address: Viikinkaari 1, 4th floor) University of Helsinki FIN-00014 Helsinki, Finland Tel. +358-9

[ccp4bb] xprep vs shelxc

2008-02-12 Thread Tommi Kajander
difference (getting xprep will cost some money so i would like to know where the difference lies if there is any significant difference??) Thanks for advice, Tommi -- Tommi Kajander, Ph.D. Macromolecular X-ray Crystallography Research Program in Structural Biology and Biophysics Institute

Re: [ccp4bb] Solvent content of membrane protein crystals

2007-09-24 Thread Tommi Kajander
state of the protein --suppose some neutron scattering studies on model systems might give the answer --havent looked. just wondering.. -tommi -- Tommi Kajander, Ph.D. Macromolecular X-ray Crystallography Research Program in Structural Biology and Biophysics Institute of Biotechnology PO box 65

[ccp4bb] HT-thermal melts

2007-09-11 Thread Tommi Kajander
europe most relevant) thanks very much, tommi -- Tommi Kajander, Ph.D. Macromolecular X-ray Crystallography Research Program in Structural Biology and Biophysics Institute of Biotechnology PO box 65 (Street address: Viikinkaari 1, 4th floor) University of Helsinki FIN-00014 Helsinki, Finland Tel

Re: [ccp4bb] refmac problem in running arp/warp

2007-08-10 Thread Tommi Kajander
Quoting Anastassis Perrakis [EMAIL PROTECTED]: On Aug 9, 2007, at 15:02, Tommi Kajander wrote: so, a) WHAT IS GAMMA?? gamma is possibly the letter of the greek alphabet that has had most abuse from scientists. thats what i thought... http://en.wikipedia.org/wiki/Gamma_

[ccp4bb] refmac problem in running arp/warp

2007-08-09 Thread Tommi Kajander
success to go beyond it by any meanstweaking parameters in arpwarp now suggestions??) many thanks..., tommi -- Tommi Kajander, Ph.D. Macromolecular X-ray Crystallography Research Program in Structural Biology and Biophysics Institute of Biotechnology PO box 65 (Street address

Re: [ccp4bb] auto-tracing programs

2007-07-31 Thread Tommi Kajander
opinions though...) cheers, tommi Quoting Anastassis Perrakis [EMAIL PROTECTED]: On Jul 31, 2007, at 15:24, Tommi Kajander wrote: Hi, i would be interested in hearing about people's preferences on programs for doign auto-tracing of protein chains (with not so great maps), I do like

Re: [ccp4bb] heavyatom soaking problem

2007-06-29 Thread Tommi Kajander
Quoting Priyank Maindola [EMAIL PROTECTED]: Hello all, I am struggling with getting the phases out for my protein. Heavyatom database shows that only mercury and samarium have the binding motifs in it. Sodium iodide soak is killing the crystal even as less as 0.2 Molar concentration for

Re: [ccp4bb] High overall b-factor

2007-03-10 Thread Tommi Kajander
Get a FREE Web site, company branded e-mail and more from Microsoft Office Live! -- Tommi Kajander, Ph.D. Macromolecular X-ray Crystallography Research Program in Structural Biology and Biophysics