Re: [ccp4bb] Modified Arginine Coot and SHELX

2010-06-23 Thread SIPPEL,KATHERINE H
Since no one has answered the SHELX part of this question I'll jump in. The PRODRG restraints should work as is, assuming you've named the peptide atoms correctly (C, O, CA, N). But just in case they don't you can explicitly attach it to the main chain with the addition of a couple of spare res

Re: [ccp4bb] Modified Arginine Coot and SHELX

2010-06-23 Thread Paul Emsley
On 23/06/10 14:40, Fatima wrote: Dear all, I'm finishing a refinement using SHELX and Coot (1.3A) and I have a modified Arginine. There’s a blob of positive density (9.04 and 7.01 sigma) binding NH2 in the 2 conformations. I think it could be a hydroxyl there. 1) How can I add that in Coot?

[ccp4bb] Modified Arginine Coot and SHELX

2010-06-23 Thread Fatima
Dear all, I'm finishing a refinement using SHELX and Coot (1.3A) and I have a modified Arginine. There’s a blob of positive density (9.04 and 7.01 sigma) binding NH2 in the 2 conformations. I think it could be a hydroxyl there. 1) How can I add that in Coot? 2) Does SHELXL recognise modified