[ccp4bb] B-iso vs. B-aniso

2012-09-17 Thread Yuri Pompeu
Dear community, The protein model I am refining has 400 amino acids (3320 atoms). Some real quick calculations tell me that to properly refine it anisotropically, I would need 119,520 observations. Given my unit-cell dimension and space-group it is equivalent to about a 1.24 A complete data

Re: [ccp4bb] B-iso vs. B-aniso

2012-09-17 Thread Tim Gruene
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Dear, 1.24A resolution is reasonable for anisotropic refinement - including restraints you have more observations than the number of reflections, so just doing the calculation does not give a concise answer! You should try and see if the refinement

Re: [ccp4bb] B-iso vs. B-aniso

2012-09-17 Thread Ethan Merritt
On Monday, September 17, 2012 11:31:53 am Yuri Pompeu wrote: Dear community, The protein model I am refining has 400 amino acids (3320 atoms). Some real quick calculations tell me that to properly refine it anisotropically, I would need 119,520 observations. Given my unit-cell dimension

Re: [ccp4bb] B-iso vs. B-aniso

2012-09-17 Thread Robbie Joosten
- From: CCP4 bulletin board [mailto:CCP4BB@JISCMAIL.AC.UK] On Behalf Of Yuri Pompeu Sent: Monday, September 17, 2012 20:32 To: CCP4BB@JISCMAIL.AC.UK Subject: [ccp4bb] B-iso vs. B-aniso Dear community, The protein model I am refining has 400 amino acids (3320 atoms). Some real quick