Re: [ccp4bb] Question about glove boxes for protein crystallization

2007-02-23 Thread Patrick Shaw Stewart
Hi Mathews One of our customers, Bret Dillard at the University of Georgia, has had great success with one of our robots in a Bactron X anaerobic chamber. In this case, Bret mainly used the microbatch-under-oil method, which works very well for anaerobic work: (1) the oil protects the sample

Re: [ccp4bb] Main topic of the day: Protein crystallization

2007-02-23 Thread Patrick Shaw Stewart
Ronaldo I have a database of crystallization conditions extracted from the PDB. I was able to parse the data to extract the concentration of protein in around 900 cases. The lowest 9 protein concentrations were as follows: PDB ID TYPEDATEProtein conc, mg/ml 1EYMISOMERASE.

[ccp4bb] AW: [ccp4bb] Question about glove boxes for protein crystallization

2007-02-23 Thread Alexander . Pautsch
Dear Patrick, as a (probably more general) follow up-question: Does anyone have experience with batch crystallization under oil for membrane proteins (in detergent) ? alex Dr. Alexander Pautsch Protein Crystallography /Structural Research Boehringer Ingelheim Pharma GmbH Co. KG

Re: [ccp4bb] Question about glove boxes for protein crystallization

2007-02-23 Thread Roberto Steiner
Hi Mathews, An anaerobic chamber from Belle Technology (http://www.belle- technology.com/) served me well in the past. Belle's glove boxes are made of acrylic material. That offers relatively low-cost and all-round visibility. Cheers, Roberto On 23 Feb 2007, at 02:03, Mathews, Irimpan

Re: [ccp4bb] Question about glove boxes for protein crystallization

2007-02-23 Thread Nikos Pinotsis
Dear Mathews, we were successful in crystallizing two ferredoxins under strict anaerobic conditions using the much cheaper solution of a glove bag and filling it with argon. I guess that in both cases (box and bag) the thickness of the gloves is a problem especially if you are dealing with

Re: [ccp4bb] Main topic of the day: Protein crystallization

2007-02-23 Thread Tassos Papageorgiou
Just to add that in one case we were able to get suitable crystals after using a protein concentration of as low as 1.5 mg/ml (kapetaniou et al. Acta Cryst. 2005, F61, 479-481) and microdialysis to slowly remove the excess of salt. Lower concentrations (0.50-0.75 mg/ml) could also produce crystals

[ccp4bb] previous message monomer library

2007-02-23 Thread Arti S. Pandey
Hello all, Kindly disregard my message about monomer libraries. The problem ( atoms blowing apart) seems to be due to something (yet undetermined) else. Thank you for clearing up ones about COM_COM. However, I still wonder if I can add my own ligand libraries to the default one, like you can do

[ccp4bb]

2007-02-23 Thread David W Borhani
Hi, David Borhani is no longer with Abbott. Please resend your email to: [EMAIL PROTECTED]