Re: [ccp4bb] Progress in membrane protein cryo-protect

2007-02-07 Thread Hubing Lou
First of all, thanks very much for those who replied to my question. For those who do not follow this thread, I was asking a cryo question about membrane protein crystals grown at 4C with 0.05-0.2M AS (ammonium sulfate) and 15-26%PEG400. Some of you suggested directly freeze the crystal in LN

Re: [ccp4bb] Optimization of needle crystals?

2008-04-16 Thread Hubing Lou
You didn't mention which detergent in the conditions. From the picture it looks like crystals of detergent. -- Hubing Lou Centre for Biomolecular Sciences University of St Andrews North Haugh St Andrews Fife KY16 9ST Scotland Quoting Ngo Duc Tri [EMAIL PROTECTED]: Dear ccp4 users, I

Re: [ccp4bb] unusual diffraction spots

2010-11-24 Thread Hubing Lou
. 07920 138148 *From:* CCP4 bulletin board [mailto:ccp...@jiscmail.ac.uk] *On Behalf Of *Hubing Lou *Sent:* 24 November 2010 14:09 *To:* CCP4BB@JISCMAIL.AC.UK *Subject:* [ccp4bb] unusual diffraction spots Dear CCP4BBer, I recently collected a dataset at synchrotron. The diffraction

Re: [ccp4bb] unusual diffraction spots

2010-11-24 Thread Hubing Lou
Of *Hubing Lou *Sent:* 24 November 2010 14:09 *To:* CCP4BB@JISCMAIL.AC.UK *Subject:* [ccp4bb] unusual diffraction spots Dear CCP4BBer, I recently collected a dataset at synchrotron. The diffraction was quite anisotropic with one direction to 2.1Angstrom while the other is 3.0Ang. What unusual

Re: [ccp4bb] Phaser and Molrep gave different solutions

2011-07-21 Thread Hubing Lou
] *On Behalf Of *Hubing Lou *Sent:* Thursday, July 21, 2011 6:46 AM *To:* CCP4BB@JISCMAIL.AC.UK *Subject:* [ccp4bb] Phaser and Molrep gave different solutions Dear all, I am stuck in a molecular replacement case and looking for advices. I have been working on a protein-DNA complex structure. Data

Re: [ccp4bb] Phaser and Molrep gave different solutions

2011-07-25 Thread Hubing Lou
protein molecule or if the search models and the molecules have identical sequences. To solve this structure you probably have to do Se-labeled protein and SAD etc. or collect anomalous from metal ions if present. Cheers. Ray Brown -- *From:* Hubing Lou louhub

[ccp4bb] modelling C-terminal COOH in coot

2012-02-17 Thread Hubing Lou
Dear all, I have a structure solved by molecular replacement. The C-terminus at the end of the chain shows as CO, not COOH. How do I make it into COOH in COOT? I tried to place an O in the relevant position, but seems not working this way. Thanks, Hubing