[COOT] Linking two sidechains with a double bond and refining

2023-07-31 Thread David Dranow
Hi Learned Friends, I'm trying to refine a structure that has a very similar staple to the one in 8GJS. In that structure, there's a double bond between residue 5 and 12 in chain B. I've tried to define a link using jligand and I get a cif that looks like it would define the double bond.

Re: [COOT] Linking two sidechains with a double bond and refining

2023-07-31 Thread David Dranow
Message was attached instead of in the body for some reason. Here it is" Hi Learned Friends, I'm trying to refine a structure that has a very similar staple to the one in 8GJS. In that structure, there's a double bond between residue 5 and 12 in chain B. I've tried to define a link using

Re: [COOT] Linking two sidechains with a double bond and refining

2023-08-01 Thread David Dranow
Hi Joel, That's a great idea! I've considerd it, and technically it would work as you suggest to refine correctly. However, that would look like more carbons come from one of the two precursor molecules than the other, which chemically would be wrong. I really want to avoid giving the

Re: [COOT] Linking two sidechains with a double bond and refining

2023-08-11 Thread David Dranow
Hi David Briggs, Thank you for the suggestion of AceDrg. I gave it a try, using the Coot way and the Jligand way for AceDrg. For some reason the Coot method didn't make a cif, only jligand did. But the cif didn't have any effect on refinement. What did work for Phenix was to define the

[COOT] WinCoot preferences

2023-05-19 Thread David Dranow
Hi Friends, I have sucessfully used preference files for WinCoot for that last 8 years across 3 laptops, but with this new laptop it's not working. It looks like the files are read, but I don't see the output in the terminal to indicate that it has any effect. And the preferences are not