Re: [ccp4bb] Protein truncation problem in crystal.

2011-07-16 Thread Artem Evdokimov
" one molecule of 37 kDa with solvent content 17%" I highly doubt it. It's theoretically possible, but with extremely low solvent content like this the crystals should be tightly packed, with all the consequences of tight packing such as higher resolution diffraction and most of the bits accounted

Re: [ccp4bb] Protein truncation problem in crystal.

2011-07-16 Thread Nian Huang
The R and Rfree are low enough so your space group is correct. I don't see a resolution in the log file. If it is 3 A dataset, 28% is not bad for a start at all. The N terminal region is probably completely disordered if it is not degraded. Nian On Sat, Jul 16, 2011 at 3:47 AM, Appu kumar wrote:

Re: [ccp4bb] unusual sighting of a crystal structure

2011-07-16 Thread Robbie Joosten
Hi Artem, Thank for that nice example of a protein structure used to pimp a movie. Ribbon representations are always the scariest. Cheers, Robbie Date: Sat, 16 Jul 2011 10:57:21 -0500 From: artem.evdoki...@gmail.com Subject: [ccp4bb] unusual sighting of a crystal structure To: CCP4BB@JISCMAIL.A

Re: [ccp4bb] unusual sighting of a crystal structure

2011-07-16 Thread Folmer Fredslund
Nice find! ;-) Just in case anyone want to see it IRL http://www.youtube.com/watch?v=4sYSyuuLk5g&hd=1&t=38s Regards, Folmer 2011/7/16 Artem Evdokimov : > Fellow structural biologists, > > I just caught a brief glimpse of a crystal structure (looks like an Fv > complex or maybe an IG-like recepto

Re: [ccp4bb] Protein truncation problem in crystal.

2011-07-16 Thread Bosch, Juergen
Did you run your crystals on a gel to ensure and verify that what you think you crystallized is at least the right molecular weight ? Maybe the N-terminal part is just chopped off and you have indeed crystallized just the 23 kDa fragment ? Try running Xtriage or pointless over your data to verif

[ccp4bb] Protein truncation problem in crystal.

2011-07-16 Thread Appu kumar
Dear CCP4 User, I am new to crystallography and i need your valuable suggestion to help me out. We have crystallized full length protein and I am solving protein structure by molecular replacement method and molecular weight of protein is 37kDa. Template pdb i am using