[ccp4bb] Extremely long c-axis...reasonable?

2010-08-03 Thread Christian Strube
Hi everybody, indexing of recently collected data gave me unit cell parameters of a=b= 88 and an extremely long c-axis of 652 A. My question is, if the value of the c-axis can be reasonable? Or am I wrong with the SG? I know that length doesn't count, but does anybody has a longer one? Is ther

[ccp4bb] refmac resolution limit vs twin refine

2010-01-20 Thread Christian Strube
Hi, I just found out, that this effect just occurs when I push the "twin refine" button. I have 4 slightly twinned datasets, and so far the twin refine worked very well...but this should not happen, I think. Any explanations or advise? greetings, Christian Hi ccp4bb, I have a big problem

[ccp4bb] Resolution limits in refmac

2010-01-20 Thread Christian Strube
Hi ccp4bb, I have a big problem concerning refmac_5.5.0088. I refined a couple of structures. Now after refining I realized that refmac sets wrong resolution limits for my data. Scaling was done with scala. I cut the data at 1.8 A. Then I used molrep; respectively difference fourier. Later in