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Dynamical transition of bacteriorhodopsin in purple membranes revealed by neutron scattering: a relation between structure, dynamics and function

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  • Ferrand, M.
  • Petry, W.
  • Dianoux, A.J.
  • Zaccai, G.

Abstract

The internal motions of bacteriorhodopsin, the integral membrane protein in purple membranes of Halobacterium halobium, have been studied by neutron scattering as a function of different external conditions. The internal dynamics exhibit a transition above a critical temperature of 230 K from a harmonic to an anharmonic regime, provided the hydration of the membranes is sufficient. We found this onset of large amplitude motions correlated with the appearance of protein function under certain conditions of temperature and relative humidity.

Suggested Citation

  • Ferrand, M. & Petry, W. & Dianoux, A.J. & Zaccai, G., 1993. "Dynamical transition of bacteriorhodopsin in purple membranes revealed by neutron scattering: a relation between structure, dynamics and function," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 201(1), pages 425-429.
    • Handle: RePEc:eee:phsmap:v:201:y:1993:i:1:p:425-429
    DOI: 10.1016/0378-4371(93)90445-A
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    1. Ertl, Josef & von Heereman, Constantin & Buchholz, Hans E., 1973. "Reform des Agrarmarktes," Wirtschaftsdienst – Zeitschrift für Wirtschaftspolitik (1949 - 2007), ZBW - Leibniz Information Centre for Economics, vol. 53(11), pages 567-577.
    2. Downing, Lyle, 1990. "Democracy and the Contemporary State. By Frank Bealey. New York: Oxford University Press, 1988. 285p. $57.00," American Political Science Review, Cambridge University Press, vol. 84(2), pages 624-624, June.
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    1. Fenimore, P.W. & Frauenfelder, H. & McMahon, B.H. & Young, R.D., 2005. "Proteins are paradigms of stochastic complexity," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 351(1), pages 1-13.

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