[ccp4bb]: C-alpha to Mainchain in Coot

[Noinaj]

Hi,   I am using Coot to build a model into experimental density map and have a question about the calpha to mainchain conversion.  Using a partially build model, I used the Ca Baton mode to build in atoms along the main chain that were missing.  I then attempted to convert the calpha atoms to mainchain using the CaZone --> Mainchain feature.  The problem is that nothing happens.  I can see that the program (Coot) is searching the database of fragments, but then it stops and nothing happens.    The calpha --> mainchain conversion seems to work with some atom zones and not with others.  My question is, if Coot cannot find a suitable mainchain fragment for my atom zone in the database, what other option do I have for converting the atom zone into mainchain?    I am using a partially built model and simply manually building in the 'missing bits'.  Which model building program is best for this type of build?  Thanks in advance for all feedback!       Cheers, Nick             ________________________________________   Nicholas Noinaj University of Kentucky School of Medicine Department of Molecular and Cellular Biochemistry Biomedical Biological Sciences Research Building, Rm 236 741 S. Limestone Lexington, Ky 40536 Lab:  859-323-8183 Home:  859-228-0978 [EMAIL PROTECTED] www.noinaj.com