Re: [ccp4bb] MR with 40% identical model failed

2007-10-23 Thread Juergen Bosch
1) How can I make a mask as mentioned above? Am I doing it the wrong way? You can run NCSMASK with your first placed domain and generate a suitable mask file for DM. 2) Is there any other method to improve the density of the missing structure? I tried several MR probes of the sec

Re: [ccp4bb] MR with 40% identical model failed

2007-10-23 Thread James Whisstock
Hi Have you checked for twinning? J TC Hu <[EMAIL PROTECTED]> wrote:> > Dear all, > > > > I am working on a structure which is composed of two domains. The X-ray > data > is quite good (P21, 2.2A, Rmerge=0.08, 93% completeness), there is one > molecule (277 residues) per ASU. The structure h

Re: [ccp4bb] MR with 40% identical model failed

2007-10-23 Thread Anastassis Perrakis
The R and Rfree after refining domain 1 are 39% and 44%. The density is good for the existing model but disconnected in the missing part of the structure in which I can hardly place any residue. 2) Is there any other method to improve the density of the missing structure? I tried sever

[ccp4bb] MR with 40% identical model failed

2007-10-23 Thread TC Hu
Dear all, I am working on a structure which is composed of two domains. The X-ray data is quite good (P21, 2.2A, Rmerge=0.08, 93% completeness), there is one molecule (277 residues) per ASU. The structure has four homologous structures with sequence identities ranging from 35%-40%. The four stru