Hi Aaron, > I am somewhat new to PYMOL and was trying to create a selection of atoms. > What I need to do is select all atoms of a protein that are within 5 > angstroms of an inhibitor (the protein and inhibitor are separate > molecules). I cannot figure out how to do this from the examples in the > manual. I will want to use this selection to make a surface of the > selection afterward. >
You might try this. Select a central atom of your ligand (ALT + left mouse button). Pymol will name this selection (lb). select bindingsite = (lb around 5) and not HETATM) # PDB-style, this will select all not HETATM atoms around your selected atom or select bindingsite = (lb around 5) and not ligand) # if your small molecule is named ligand show surface, bindingsite Cheers Daniel -- Daniel Kuhn Department of Pharmaceutical Chemistry Philipps-University of Marburg Marbacher Weg 6 Phone: (+49)6421 28-25071 35037 Marburg Fax: (+49)6421 28-28994 Germany