Molecular Electro-Optics pp 241-267 | Cite as
Interaction of Electric Fields with Membrane-Bound Polyionic Proteins
Abstract
Recent progress in electro-optic instrumentation has led to experimental results which give new insight into the dynamic behavior of membrane-bound polyionic macromolecules, such as bacteriorhodopsin in purple membranes. Electric impulses of high field intensity (2×105 to 3×106 Vm−1,1 to 20 ps duration) cause transient changes in the optical absorbance of suspended purple membranes of Halobacterium halobium. The electric dichroism at 1 mM NaC1 pH ≅ 6 and at 293 K is dependent on field strength, pulse duration and wavelength of the monitoring, plane-polarized light in the range 400 nm to 650 nm. The optically indicated processes are, however, independent of bacteriorhodopsin concentration, of ionic strength and of the intensity of the monitoring light. These data and the analysis of time course and steady state of the reduced dichroism suggest electric field sensitive, intramembraneous structural changes which involve restricted orientation changes of the chromophore. A theoretical analysis of restricted orientation is developed and applied to the electro-optic data. As a result it is found that the electric dichroism of purple membranes is associated with a large induced dipole moment up to 7×10−26 Cm (2.1×104 Debye) which develops in a cooperative manner; the electric permanent dipole moment which is involved amounts to 4.7×10−28 Cm (140 Debye).
Keywords
Orientation Factor Purple Membrane Permanent Dipole Moment Induce Dipole Moment Electric Permanent Dipole MomentPreview
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References
- 1.E. Neumann, in: Electro-optics and dielectrics of macromolecules and colloids,(Ed. B. R. Jennings) Plenum Press, New York, p. 233–245 (1979).Google Scholar
- 2.E. Neumann, in: Topics in Bioelectroehemistry and Bioenergetics, (Ed. G. Milazzo), John Wiley & Sons, London, Vol. 4, p. 113–161, (1980).Google Scholar
- 3.E. Neumann and J. Bernhardt, Ann. Rev. Biochem. 46, 117 (1977).CrossRefGoogle Scholar
- 4.E. Neumann, Neurochemistry Intern. 1, in press (1980)Google Scholar
- 5.K. Tsuji and E. Neumann, Intern. J. Biol. Macromol. 2, in press, (1980).Google Scholar
- 6.D. Schallreuter and E. Neumann, in prep. (1980).Google Scholar
- 7.A. Revzin and E. Neumann, Biophys. Chem. 2, 144 (1974).CrossRefGoogle Scholar
- 8.D. Oesterhelt and W. Stoeckenius, Nature New Biol. 233, 149 (1971).Google Scholar
- 9.D. Oesterhelt and W. Stoeckenius, Proc. Nat. Acad. Sci. USA, 70, 2853 (1973).ADSCrossRefGoogle Scholar
- 10.R. Shinar, S. Druckmann, M. Ottolenghi, and R. Korenstein, Biophys. J. 19, 1 (1977).CrossRefGoogle Scholar
- 11.B. Hess, R. Korenstein, and D. Kuschmitz in ‘Energetics and Structure of Halophilic Micro-organisms’ (Eds. S. R. Caplan and M. Ginzburg), Elsevier, Amsterdam, p. 89 (1978).Google Scholar
- 12.K. Tsuji and K. Rosenheck in ‘Electro-Optics and Dielectrics of Macromolecules and Colloids’ (Ed. B. R. Jennings), Plenum Press, New York, p. 77, (1979).Google Scholar
- 13.G. P. Borisevitch, E. P. Lukashev, A. A. Kononenko and A. B. Rubin, Biochim. Biophys. Acta, 546, 171 (1979).CrossRefGoogle Scholar
- 14.M. Eisenbach, C. Weissmann, G. Tanny, and S. R. Caplan, FEBS Lett. 81, 77 (1977).CrossRefGoogle Scholar
- 15.R. Henderson, J. Mol, Biol. 93, 123 (1975).CrossRefGoogle Scholar
- 16.A. N. Kriebel and A. C. Albrecht, J. Chem. Phys. 65, 4575, (1976).ADSCrossRefGoogle Scholar
- 17.T. G. Ebrey, B. Becher, B. Mao, P. Kilbride and B. Honig, J. Mol. Biol. 112, 377 (1977).CrossRefGoogle Scholar
- 18.M. P. Heyn, R. J. Cherry and U. Muller, J. Mol. Biol. 117, 607, (1977).CrossRefGoogle Scholar
- 19.C. T. O’Konskí, K. Yoshioka and W. H. Orttung, J. Phys. Chem. 63, 1558 (1959).CrossRefGoogle Scholar
- 20.E. Fredericq and C. Houssier, ‘Electric Dichroism and Electric Birefringence’, Clarendon Press, Oxford (1973).Google Scholar
- 21.F. J. Perrin, Phys. Radium, 7, 390 (1926).CrossRefGoogle Scholar
- 22.A. E. Blaurock and W. Stoeckenius, Nature New Biol., 233, 152 (1971).CrossRefGoogle Scholar
- 23.L. Keszthelyi, Biochim. Biophys. Acta, 598, 429 (1980).CrossRefGoogle Scholar
- 24.K. Razi Naqvi, J. Gonzalez-Rodriguez, R. J. Cherry, and D. Chapman, Nature New Biol. 245, 249 (1973).CrossRefGoogle Scholar
- 25.T. Konishi and L. Packer, FEBS Lett. 92, 1 (1978).CrossRefGoogle Scholar
- 26.A. Lewis, M. A. Marcus, B. Ehrenberg, and H. Crespi, Proc. Nat. Acad. Sci. USA 75, 4642 (1978).ADSCrossRefGoogle Scholar
- 27.T. Gillbro, Biochim. Biophys. Acta 504, 175 (1978).CrossRefGoogle Scholar
- 28.R. H. Lozier and W. Niederberger, Fed. Proc. 36, 1805 (1977).Google Scholar
- 29.K. Schulten and P. Tavan, Nature 272, 85 (1978).ADSCrossRefGoogle Scholar
- 30.J. B. Hurley, B. Becher, and T. G. Ebrey, Nature 272, 87 (1978).ADSCrossRefGoogle Scholar
- 31.K. Yoshioka and H. Watanabe in: ‘Physical Principles and Techniques of Protein Chemistry, Part A’ (Ed. S. J. Leach) Academic Press Inc., New York, p. 339 (1969).Google Scholar
- 32.C. J. F. Böttcher, ‘Theory of Electric Polarization’, Elsevier Sci. Pub. Co., Amsterdam (1973).Google Scholar
- 33.Yu. A. Ovchinnikov, N. G. Abdulaev, M. Yu Feigina, A. V. Kiselev and N. A. Lobanov, FEBS Lett. 100, 219 (1979)CrossRefGoogle Scholar
- 34.B. Becher and J. Y. Cassim, Biophys. J. 16, 1183 (1976).CrossRefGoogle Scholar
- 35.A. Wada in: ‘Poly-a-Amino Acids’ (Ed. G. Fasman), Marcel Dekker, New York, p. 369 (1967).Google Scholar
- 36.M. Rehorek and M. P. Heyn, Biochemistry, 18, 4977 (1979).CrossRefGoogle Scholar
- 37.B. Becher and J. Y. Cassim, Biophys. J., 19, 285 (1977).ADSCrossRefGoogle Scholar
- 38.A. Lewis, Phil. Trans. R. Soc. Lond., A293, 315 (1979).ADSCrossRefGoogle Scholar