Re: [ccp4bb] For stabilizing protein-protein complex

2017-01-31 Thread Napoleao Fonseca Valadares
If your SPR data is correct, you'll need to use a micro molar protein concentration (or higher due to dilution in the column) in your analytical size exclusion chromatography assay. What concentration did you use? Also, ideally the buffers in both assays should match. And maybe your SPR data is

Re: [ccp4bb] Abraham Szöke

2017-01-30 Thread Napoleao Fonseca Valadares
I'm really sad to hear that. Rest in peace. One of his articles, which has William as the first author, is very interesting, well-written, easy to read, and I use it to illustrate and open the mind of biochemistry students regarding several important topics. Works like a charm. RNA

Re: [ccp4bb] Completely Off-Topic

2017-01-12 Thread Napoleao Fonseca Valadares
Dear Jacob, You did not miss the 101 class, it is just too much to remember. E. coli metabolome when growing on glucose (Lehninger, 2013): http://www.fullonline.org/science/ecoli_metabolome.png The book does not provide explanation for this, but I remember reading somewhere else that

Re: [ccp4bb] To win or not twinning?

2016-12-01 Thread Napoleao Fonseca Valadares
rator.. > ctruncate tests each possible twin operator and scores them. (And so > does XTRIAGE of course..) > On 30 November 2016 at 14:00, Keller, Jacob < > kell...@janelia.hhmi.org > wrote: > > What about spacegroups in PG 32, e.g., p3212? > > > JPK > >

[ccp4bb] To win or not twinning?

2016-11-29 Thread Napoleao Fonseca Valadares
Dear CCP4ers, I'd like to kindly ask your advice. Sorry for the long e-mail. I have crystals of a 12.3 KDa protein that grow in hexagon-like patterns, link for the crystal image: http://fullonline.org/science/cryst01.jpg XDS, Phenix and Pointless always suggest that the data sets for these

Re: [ccp4bb] Vector approximation of B-strands

2014-02-03 Thread Napoleao Fonseca Valadares
Hi Grant, I think pymol's module AngleBetweenHelices might be worth checking, at least for some ideas in the code. http://www.pymolwiki.org/index.php/AngleBetweenHelices It has four methods to fit the helix, and a couple of them work well with b-strands. Have fun. Regards, Napo -