Literature DB >> 6291656

Picosecond spectroscopy of Cu(II) cytochrome c.

A H Reynolds, K D Straub, P M Rentzepis.   

Abstract

We have observed a strong pH dependence in the relaxation rate of Cu(II) cytochrome c following excitation at 532 nm. At pH 8.0 the excited state relaxes with a lifetime of 10 +/- 5 ps while at pH extremes of 2.5 and 13.0 we find that the lifetime becomes longer than 1 ns. This change of more than two orders of magnitude in the lifetime may be due to the Cu coordination number, which is six at neutral pH but five at pH extremes.

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Year:  1982        PMID： 6291656      PMCID： PMC1328969          DOI： 10.1016/S0006-3495(82)84454-8

Source DB:  PubMed          Journal:  Biophys J        ISSN： 0006-3495            Impact factor:   4.033


  6 in total

1.  On the compounds of ferricytochrome c appearing in acid solution.

Authors:  E BOERI; A EHRENBERG; K G PAUL; H THEORELL
Journal:  Biochim Biophys Acta       Date:  1953 Sep-Oct

2.  Microsecond luminescence emission from copper cytochrome c.

Authors:  P Glatz; B Chance; J M Vanderkooi
Journal:  Biochemistry       Date:  1979-08-07       Impact factor: 3.162

3.  Picosecond dynamics of iron proteins.

Authors:  D Huppert; K D Straub; P M Rentzepis
Journal:  Proc Natl Acad Sci U S A       Date:  1977-10       Impact factor: 11.205

4.  Copper-cytochrome c.

Authors:  M C Findlay; L C Dickinson; J C Chien
Journal:  J Am Chem Soc       Date:  1977-07-20       Impact factor: 15.419

5.  Luminescence of Cu-cytochrome c.

Authors:  J M Vanderkooi; B Chance; A Waring
Journal:  FEBS Lett       Date:  1978-04-15       Impact factor: 4.124

6.  Kinetics and temperature dependence of carboxymyoglobin ligand photodissociation.

Authors:  A H Reynolds; P M Rentzepis
Journal:  Biophys J       Date:  1982-04       Impact factor: 4.033
  6 in total

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