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

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

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