Hi,<br>
<br>
I had a trouble of refining "ATP" in Phenix. I appreciate any help.<br>
<br>
ATP with tri-phosphate is in the 5' end of RNA chain. It is added to
the RNA chain in coot as a monomer "ATP", and it could be connected to
the downstream base after I changed the "_chem_comp.group" option to
"RNA" in the cif file.<br>
<br>
But when I refine the model in Phenix, Phenix treated the "ATP' as a monomer and didn't connect it to the downstream base.<br>
<br>
I tried two ways to solve it<br>
<br>
1. Add the the modified� (chang the "_chem_comp.group" option to "RNA")
cif file in phenix_refine, but Phenix doesn't recognize it. <br>
2. In REEL, I found phenix has its own cif file for ATP, but the its header couldn't be edited.<br>
<br>
Any suggestions?<br>
Thanks.<br>
<br>
<br>
Yu<br>
<br>�<br>