63130 20171031104634.0 doi 10.1088/1367-2630/14/2/023004 sideral 76533 ART-2012-76533 eng (orcid)0000-0001-6859-099X Fiasconaro, Alessandro Universidad de Zaragoza Michaelis-Menten dynamics of a polymer chain out of a dichotomous ATP-based motor 2012 Access copy available to the general public Unrestricted We present a model of an ATP-fueled molecular machine which pushes a polymer through a pore channel. The machine acts between two levels (working–waiting), and the working one remains active for a fixed time giving a constant force. The activation rate of the machine can be put in relationship with the available ATP concentration in the solution, which gives the necessary energy supply. The translocation time shows a monotonic behaviour as a function of the activation frequency, and the velocity follows a Michaelis–Menten (MM) law that arises naturally in this description. The estimation of the stall force of the motor follows a corrected MM law which yet is to be checked in experimental investigations. The results presented here agree with recent biological experimental findings. info:eu-repo/grantAgreement/ES/MINECO/FIS2008-01240 info:eu-repo/grantAgreement/ES/MINECO/FIS2011-25167 info:eu-repo/semantics/openAccess by-nc-sa http://creativecommons.org/licenses/by-nc-sa/3.0/es/ 4.063 2012 PHYSICS, MULTIDISCIPLINARY 9 / 83 = 0.108 2012 Q1 T1 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion (orcid)0000-0003-0698-6555 Mazo, Juan José Universidad de Zaragoza (orcid)0000-0002-9551-624X Falo, Fernando Universidad de Zaragoza 2003 395 Universidad de Zaragoza Departamento de Física de la Materia Condensada Física de la Materia Condensada 14 (2012), 023004 [13 pp.] New j. phys. NEW JOURNAL OF PHYSICS 1367-2630 629329 http://zaguan.unizar.es/record/63130/files/texto_completo.pdf Versión publicada 75130 http://zaguan.unizar.es/record/63130/files/texto_completo.jpg?subformat=icon icon Versión publicada oai:zaguan.unizar.es:63130 articulos driver 2017-10-30-13:31:08 ARTICLE