Re: [ccp4bb] Low resolution refinement

2011-05-19 Thread Gregory Verdon
Missing density could point to incomplete data, how is the completeness at high and low resolution? Sent from my iPhone On May 19, 2011, at 11:54 AM, Jon Schuermann wrote: > Dear Joane, > >Bert's recommendations are very good, but I'd like to add a little > caution. If just part of the m

Re: [ccp4bb] Very low resolution map.

2011-06-01 Thread Gregory Verdon
Are you doing MR at low resolution or just cuting data to compare with an EM map? Sent from my iPhone On Jun 1, 2011, at 7:35 PM, Hailiang Zhang wrote: > Hi there, > > I have a preliminary question. For very low resolution data, say 10A or > even lower, is the density map supposed to be more

Re: [ccp4bb] spherulites and PEG3350

2011-08-24 Thread Gregory Verdon
You should check these "spherulites" on SDS-PAGE gel to make sure that these contain your protein. Then you can start thinking about optimization. On Wed, Aug 24, 2011 at 2:05 PM, Jan van Agthoven wrote: > Dear all, > > I recently obtained some spherulites while trying to crystallize my > protei

Re: [ccp4bb] unable to fit the 11-amino-acid peptide

2025-03-03 Thread Gregory Verdon
Hi, 1) maybe work on refining the protein structure first, so that your residual maps improve in quality. 2) Maybe only part of the peptide is ordered? Can you assign part of the sequence? Starting a bulky aromatic (e.g. W/Trip)? 3) do you have a way to QC your peptide? Is it still 11 residues in