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PMID: 6504161 Published · ppublish English Journal Article Research Support, Non-U.S. Gov't Research Support, U.S. Gov't, Non-P.H.S. Research Support, U.S. Gov't, P.H.S.

Mechanism of colour discrimination by a bacterial sensory rhodopsin.

Nature ·Vol. 312 ·No. 5994 ·1984-00-00 ·Pages 509-13

Spudich JL, Bogomolni RA

Abstract

A photosensitive protein resembling the visual pigments of invertebrates enables phototactic archaebacteria to distinguish colour. This protein exists in two spectrally-distinct forms, one of which is a transient photoproduct of the other and each of which undergoes photochemical reactions controlling the cell's swimming behaviour. Activation of a single pigment molecule in the cell is sufficient to signal the flagellar motor. This signal-transduction mechanism makes evident a colour-sensing capability inherent in the retinal/protein chromophore.

MeSH Terms
Bacterial Proteins/physiology Bacteriorhodopsins/physiology Carotenoids/physiology Color Perception Halobacterium/physiology Membrane Proteins/physiology Movement Photochemistry Spectrum Analysis
Chemicals
Bacterial Proteins Membrane Proteins Carotenoids Bacteriorhodopsins
Authors & Affiliations
2 authors, click to expand affiliations / ORCID
Spudich J L
Bogomolni R A
References (7)
7 references, click to expand
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    Biophys Struct Mech. 1980;6(2):165-9 PMID: 7388124
  2. Identification of a third rhodopsin-like pigment in phototactic Halobacterium halobium.
    Proc Natl Acad Sci U S A. 1982 Oct;79(20):6250-4 PMID: 6959114
  3. Spectroscopic discrimination of the three rhodopsinlike pigments in Halobacterium halobium membranes.
    Biophys J. 1983 Aug;43(2):243-6 PMID: 6616008
  4. Control of transmembrane ion fluxes to select halorhodopsin-deficient and other energy-transduction mutants of Halobacterium halobium.
    Proc Natl Acad Sci U S A. 1982 Jul;79(14):4308-12 PMID: 6289299
  5. Sensory transduction in Halobacterium halobium: retinal protein pigment controls UV-induced behavioral response.
    Z Naturforsch C. 1979 Sep-Oct;34(9-10):841-7 PMID: 160706
  6. Two photosystems controlling behavioural responses of Halobacterium halobium.
    Nature. 1975 Sep 4;257(5521):46-8 PMID: 1161001
  7. Bacteriorhodopsin and related pigments of halobacteria.
    Annu Rev Biochem. 1982;51:587-616 PMID: 6287921
Article Info
Journal
Nature
Abbr.
Nature
ISSN
0028-0836
DOI
10.1038/312509a0
Published
1984-00-00
Pages
509-13
Language
English
Region
England
NLM ID
0410462
PMCID
PMC4996264
Subset
IM
Grants
NIGMS NIH HHS · R01 GM027750 · United States
NIGMS NIH HHS · R37 GM027750 · United States
NIGMS NIH HHS · GM27057 · United States
NIGMS NIH HHS · GM27750 · United States
External Links
PubMed source DOI: 10.1038/312509a0 PMC Full Text View journal details
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