title: A three-station DNA catenane rotary motor with controlled directionality.
abstract: The assembly of DNA machines represents a central effort in DNA nanotechnology. We report on the first DNA rotor system composed of a two-ring catenane. The DNA rotor ring rotates in dictated directions along a wheel, and it occupies three distinct sites. Hg(2+)/cysteine or pH (H(+)/OH(-)) act as fuels or antifuels in positioning the rotor ring. Analysis of the kinetics reveals directional clockwise or anticlockwise population of the target-sites (>85%), and the rotor's direction is controlled by the shortest path on the wheel.
authors.affiliation: Institute of Chemistry and The Minerva Center for Biohybrid Complex Systems, The Hebrew University of Jerusalem, Jerusalem 91904, Israel.
authors.forename: Chun-Hua
authors.initials: CH
authors.lastname: Lu
authors.forename: Alessandro
authors.initials: A
authors.lastname: Cecconello
authors.forename: Johann
authors.initials: J
authors.lastname: Elbaz
authors.forename: Alberto
authors.initials: A
authors.lastname: Credi
authors.forename: Itamar
authors.initials: I
authors.lastname: Willner
mesh_terms: D000873:Anthracenes / Q000737:chemistry*; D003545:Cysteine / Q000737:chemistry; D004247:DNA / Q000737:chemistry*; D006863:Hydrogen-Ion Concentration; D007700:Kinetics; D008628:Mercury / Q000737:chemistry; D036103:Nanotechnology
chemical_list: D000873:Anthracenes; C467767:catenane; D004247:DNA; D008628:Mercury; D003545:Cysteine