Re: [ccp4bb] Poor proline electron density

2011-07-20 Thread Herman . Schreuder
Subject: [ccp4bb] Poor proline electron density Dear all, Recently I crystallized and solved the structure of a protein using molecular replacement. The crystal diffracts to 1.8A and has the R free of 0.21. During refmac and phenix refinement, I found that the N-terminal (~25 amino acids

[ccp4bb] Poor proline electron density

2011-07-19 Thread Dolphin Huang
Dear all, Recently I crystallized and solved the structure of a protein using molecular replacement. The crystal diffracts to 1.8A and has the R free of 0.21. During refmac and phenix refinement, I found that the N-terminal (~25 amino acids) electron density wasn't quite good, especially a p