[phenixbb] select sphere syntax

Is there a way to select a sphere of residues in the phenix.superpose_pdbs command, analogous to the "around" syntax in cns? I tried "within" and "around" in phenix.superpose_pdbs but got "Atom selection syntax error". Thanks. Jack Tanner John J. Tanner Professor of Biochemistry and Chemistry University of Missouri-Columbia 125 Chemistry Building Columbia, MO 65211 email: [email protected]mailto:[email protected] phone: 573-884-1280 fax: 573-882-2754 http://faculty.missouri.edu/~tannerjj/tannergroup/tanner.html