title: Chemicomechanical transduction performed by enzymes activated by polymers.
abstract: Kinetic models for the mode of action of processive and non-processive DNA-helicases are detailed. Fluxes at the steady state are analyzed, and the random walk of the enzymes on the DNA is studied in connection with the rate constants of the chemical reactions involved in the transformation of substrate to products. Finally, the constants of the kinetic model for the processive helicase are related to the parameters of an analogous viscoelastic model.
mesh_terms: D000251:Adenosine Triphosphatases / Q000378:metabolism; D001692:Biological Transport; D001704:Biopolymers; D004247:DNA / Q000378:metabolism*; D004265:DNA Helicases / Q000378:metabolism*; D029968:Escherichia coli Proteins; D007700:Kinetics; D008433:Mathematics; D008956:Models, Chemical; D011487:Protein Conformation
chemical_list: D001704:Biopolymers; D029968:Escherichia coli Proteins; D004247:DNA; D000251:Adenosine Triphosphatases; C027093:TraI protein, E coli; D004265:DNA Helicases