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PMID: 1276383 Published · ppublish English Journal Article Research Support, U.S. Gov't, Non-P.H.S. Research Support, U.S. Gov't, P.H.S.

Picosecond kinetics of the fluorescence from the chromophore of the purple membrane protein of Halobacterium halobium.

Biophysical journal ·Vol. 16 ·No. 5 ·1976-05-00 ·Pages 541-5

Alfano RR, Govindjee R, Becher B, Ebrey TG

Abstract

The fluorescence emission kinetics at 740 nm of the retinylidence chromophore of the purple membrane protein of Halobacterium halobium have been studied. Using picosecond laser pulses and an optical Kerr gate, the fluorescence risetime is found to be less than 8 ps and its lifetime is 40 +/- 5 ps at 90 degrees K and is estimated to be less than 3 ps at room temperature.

MeSH Terms
Bacteriorhodopsins/metabolism Carotenoids/metabolism Halobacterium/metabolism Kinetics Spectrometry, Fluorescence Time Factors
Chemicals
Carotenoids Bacteriorhodopsins
Authors & Affiliations
4 authors, click to expand affiliations / ORCID
Alfano R R
Govindjee R
Becher B
Ebrey T G
References (7)
7 references, click to expand
  1. Fluorescent kinetics of chlorophyll in photosystems I and II enriched fractions of spinach.
    Biochim Biophys Acta. 1975 Apr 14;387(1):159-64 PMID: 1125285
  2. Improved isolation procedures for the purple membrane of Halobacterium halobium.
    Prep Biochem. 1975;5(2):161-78 PMID: 1144313
  3. Photolysis of bacterial rhodopsin.
    Biophys J. 1975 Sep;15(9):907-11 PMID: 1182264
  4. Bacteriorhodopsin: a light-driven proton pump in Halobacterium Halobium.
    Biophys J. 1975 Sep;15(9):955-62 PMID: 1182271
  5. Formation and decay of prelumirhodopsin at room temperatures.
    Proc Natl Acad Sci U S A. 1972 Oct;69(10):2802-6 PMID: 4507603
  6. Functions of a new photoreceptor membrane.
    Proc Natl Acad Sci U S A. 1973 Oct;70(10):2853-7 PMID: 4517939
  7. Picosecond fluorescent kinetics of in vivo chlorophyll.
    Biochim Biophys Acta. 1973 Feb 22;292(2):493-5 PMID: 4703082
Article Info
Journal
Biophysical journal
Abbr.
Biophys J
ISSN
0006-3495
DOI
10.1016/S0006-3495(76)85709-8
Published
1976-05-00
Pages
541-5
Language
English
Region
United States
NLM ID
0370626
PMCID
PMC1334875
Subset
IM
External Links
PubMed source DOI: 10.1016/S0006-3495(76)85709-8 PMC Full Text View journal details
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