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. 1982 May-Jun;27(3):357-61.

[Kinetics of primary photocycle stages of bacteriorhodopsin at low temperatures]

[Article in Russian]
B V Zubov, N A Sulikov, N M Chernavskaia, D S Chernavskiĭ, I V Chizhov
  • PMID: 7093312

[Kinetics of primary photocycle stages of bacteriorhodopsin at low temperatures]

[Article in Russian]
B V Zubov et al. Biofizika. 1982 May-Jun.

Abstract

According to the changes of absorption spectra kinetics of two primary stages of bacteriorhodopsin photochemical cycle was studied in the temperature range 160 +/- 300 degrees K. It has been found that for K610-L550 transition in the range under study the rate-temperature relationship is described by Arrhenius law with the activation energy Ea = 0.68 eV. For L550-M412 transition Ea = 0.69 eV. The character of temperature relationship, of the rate and amplitude for this transition indicates that at T less than or equal to 270 degrees K a phase transition is possible.

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