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Arginine-82 regulates the pKa of the group responsible for the light-driven proton release in bacteriorhodopsin

Author

Rajni Govindjee

Thomas G. Ebrey

1941 -

Published in: Biophysical Journal

Date of publication: August 1, 1996

Language: English

Bibliographic databases:

Cites articles 42

Date

Title

Authors

September 1, 1975

Bacteriorhodopsin: a light-driven proton pump in Halobacterium Halobium
May 1, 1980

The quantum efficiency of proton pumping by the purple membrane of Halobacterium halobium

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November 1, 1984

A correlation between proton pumping and the bacteriorhodopsin photocycle

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March 1, 1985

Time-resolved photoelectric and absorption signals from oriented purple membranes immobilized in gel
August 1, 1988

Photocurrent measurements of the purple membrane oriented in a polyacrylamide gel.
November 1, 1988

Vibrational spectroscopy of bacteriorhodopsin mutants: light-driven proton transport involves protonation changes of aspartic acid residues 85, 96, and 212
December 1, 1989

Aspartic acid-96 is the internal proton donor in the reprotonation of the Schiff base of bacteriorhodopsin
May 1, 1989

Kinetic model of bacteriorhodopsin photocycle: pathway from M state to bR
September 1, 1990

Quantum efficiency of the photochemical cycle of bacteriorhodopsin

,
May 1, 1990

Light-induced currents from oriented purple membrane: I. Correlation of the microsecond component (B2) with the L-M photocycle transition
December 1, 1990

Simultaneous monitoring of light-induced changes in protein side-group protonation, chromophore isomerization, and backbone motion of bacteriorhodopsin by time-resolved Fourier-transform infrared spectroscopy
June 20, 1990

Model for the structure of bacteriorhodopsin based on high-resolution electron cryo-microscopy
June 1, 1990

Photoelectric measurements of purple membranes
August 1, 1990

The role of back-reactions and proton uptake during the N----O transition in bacteriorhodopsin's photocycle: a kinetic resonance Raman study
February 1, 1990

Substitution of amino acids Asp-85, Asp-212, and Arg-82 in bacteriorhodopsin affects the proton release phase of the pump and the pK of the Schiff base
February 1, 1990

Protonation state of Asp (Glu)-85 regulates the purple-to-blue transition in bacteriorhodopsin mutants Arg-82----Ala and Asp-85----Glu: the blue form is inactive in proton translocation
March 1, 1990

Pathways of the rise and decay of the M photointermediate(s) of bacteriorhodopsin
August 1, 1991

Redshift of the purple membrane absorption band and the deprotonation of tyrosine residues at high pH: Origin of the parallel photocycles of trans-bacteriorhodopsin

,
September 1, 1991

Effects of Asp-96----Asn, Asp-85----Asn, and Arg-82----Gln single-site substitutions on the photocycle of bacteriorhodopsin
March 1, 1991

Wild-type and mutant bacteriorhodopsins D85N, D96N, and R82Q: purification to homogeneity, pH dependence of pumping, and electron diffraction
November 1, 1992

Proton uptake mechanism of bacteriorhodopsin as determined by time-resolved stroboscopic-FTIR-spectroscopy
April 1, 1992

A unifying concept for ion translocation by retinal proteins
April 1, 1992

FTIR difference spectroscopy of bacteriorhodopsin: toward a molecular model
July 1, 1992

Surface-bound optical probes monitor protein translocation and surface potential changes during the bacteriorhodopsin photocycle
September 1, 1992

Pathways of proton release in the bacteriorhodopsin photocycle
March 1, 1993

Molecular dynamics study of the proton pump cycle of bacteriorhodopsin
February 1, 1993

Two light-transducing membrane proteins: bacteriorhodopsin and the mammalian rhodopsin
January 1, 1993

Electron diffraction analysis of structural changes in the photocycle of bacteriorhodopsin
October 1, 1993

Effect of the arginine-82 to alanine mutation in bacteriorhodopsin on dark adaptation, proton release, and the photochemical cycle.
July 1, 1993

Estimated acid dissociation constants of the Schiff base, Asp-85, and Arg-82 during the bacteriorhodopsin photocycle
December 1, 1993

Proton translocation mechanism and energetics in the light-driven pump bacteriorhodopsin
September 1, 1993

Thermal equilibration between the M and N intermediates in the photocycle of bacteriorhodopsin

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