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TZID:Europe/Paris
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BEGIN:VEVENT
UID:1-432@lptms.universite-paris-saclay.fr
DTSTART:20160627T110000Z
DTEND:20160627T120000Z
DTSTAMP:20160622T083052Z
URL:http://www.lptms.universite-paris-saclay.fr/seminars/physics-biology-i
 nterface-seminar-helene-berthoumieux/
SUMMARY:Physics-Biology interface seminar: Hélène Berthoumieux - LPTMS\, 
 salle 201\, 2ème étage\, Bât 100\, Campus d'Orsay - 27 Juin 16 11:00
DESCRIPTION:Fluctuations in in vivo reactive systems.\nHélène Berthoumieu
 x (LPTMC - Université Pierre &amp\; Marie Curie\, Paris)\nSPECIAL LOCATIO
 N (due to renovation work at LPS)\n\nFor a chemist\, a living cell is a re
 active system in which the concentrations of biomolecules are not determin
 ed by the thermodynamics but are controlled  by energy sources maintaining
  the system in an out-of-equilibrium state. Chemical reaction networks are
  thus perturbed by a thermal noise and the fluctuations of these energy so
 urces. Theoretical and experimental studies have shown that the fluctuatio
 ns of in vivo systems break the fluctuation-dissipation theorem\, which is
  a result of statistical physics at equilibrium. One can thus ask what inf
 ormation is contained in the correlation functions of protein concentratio
 ns and how they relate to the response of the reactive network to a pertur
 bation. Answers to these questions are of prime importance to extract mean
 ingful parameters from the in vivo fluorescence correlation spectroscopy d
 ata. Here\, we present a theoretical study of the fluctuations of the conc
 entration of a reactive species involved in a cyclic network that is in a 
 non-equilibrium steady state perturbed by a noisy force\, taking into acco
 unt both the breaking of detailed balance and extrinsic noises that are kn
 own to be important in a cell.\n
CATEGORIES:physbio,seminars
LOCATION:LPTMS\, salle 201\, 2ème étage\, Bât 100\, Campus d'Orsay\, 15 
 Rue Georges Clemenceau\, Orsay\, 91405\, France
GEO:48.698185;2.181768
X-APPLE-STRUCTURED-LOCATION;VALUE=URI;X-ADDRESS=15 Rue Georges Clemenceau\,
  Orsay\, 91405\, France;X-APPLE-RADIUS=100;X-TITLE=LPTMS\, salle 201\, 2è
 me étage\, Bât 100\, Campus d'Orsay:geo:48.698185,2.181768
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