Literature DB >> 197515

Excited state lifetimes in cytochromes measured from Raman scattering data: evidence for iron-porphyrin interactions.

J M Friedman, D L Rousseau, F Adar.   

Abstract

Resonance Raman scattering excitation profile data have been obtained on ferrocytochromes c and b5 in the alpha absorption band region. We observe in cytochrome c that the shape of the excitation profile agrees with the absorption band shape, while in cytochrome b5 it does not. In addition, we observe in cytochrome b5 a linewidth substantially larger than that in cytochrome c. From our data we conclude that the excited state lifetime in cytochrome c is longer than that in cytochrome b5 and that in cytochrome b5 the relaxation of the pi-pi* excited state configuration of the porphyrin ring is different in the x direction than in the y direction. Possible origins of these effects due to coupling to the d-d transitions of the iron atom are discussed.

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Year:  1977        PMID： 197515      PMCID： PMC431207          DOI： 10.1073/pnas.74.7.2607

Source DB:  PubMed          Journal:  Proc Natl Acad Sci U S A        ISSN： 0027-8424            Impact factor:   11.205


  8 in total

1.  Spectroscopic properties of low-spin ferrous heme complexes and hemeproteins at 77degrees K.

Authors:  G C Wagner; J Kassner
Journal:  Biochem Biophys Res Commun       Date:  1975-03-17       Impact factor: 3.575

Review 2.  Structure and function of bonito ferrocytochrome c at 2.3A resolution.

Authors:  M Kakudo
Journal:  Adv Biophys       Date:  1975

3.  Resonance Raman spectra of cytochrome b5 and its mesoheme and deuteroheme modifications.

Authors:  F Adar
Journal:  Arch Biochem Biophys       Date:  1975-10       Impact factor: 4.013

4.  Resonance Raman spectra of the b- and c-type cytochromes of succinate-cytochrome c reductase.

Authors:  F Adar; M Erecińska
Journal:  Arch Biochem Biophys       Date:  1974-12       Impact factor: 4.013

5.  A new method for simultaneous purification of cytochrome b5 and NADPH-cytochrome c reductase from rat liver microsomes.

Authors:  T Omura; S Takesue
Journal:  J Biochem       Date:  1970-02       Impact factor: 3.387

6.  Resonance Raman spectra of hemoglobin and cytochrome c: inverse polarization and vibronic scattering.

Authors:  T G Spiro; T C Strekas
Journal:  Proc Natl Acad Sci U S A       Date:  1972-09       Impact factor: 11.205

7.  Three-dimensional Fourier synthesis of calf liver cytochrome b 5 at 2-8 A resolution.

Authors:  F S Mathews; M Levine; P Argos
Journal:  J Mol Biol       Date:  1972-03-14       Impact factor: 5.469

8.  Near-infrared absorption and circular dichroism spectra of ferrocytochrome c: d-d transitions.

Authors:  W A Eaton; E Charney
Journal:  J Chem Phys       Date:  1969-11-15       Impact factor: 3.488
  8 in total
  4 in total

1.  Interpretation of multiple Q(0,0) bands in the absorption spectrum of Mg-mesoporphyrin embedded in horseradish peroxidase.

Authors:  E Balog; K Kis-Petik; J Fidy; M Köhler; J Friedrich
Journal:  Biophys J       Date:  1997-07       Impact factor: 4.033

2.  Femtosecond relaxation of an iron porphyrin observed with polarization spectroscopy in a three-level system.

Authors:  J R Andrews; R M Hochstrasser
Journal:  Proc Natl Acad Sci U S A       Date:  1980-06       Impact factor: 11.205

3.  Optical band splitting and electronic perturbations of the heme chromophore in cytochrome C at room temperature probed by visible electronic circular dichroism spectroscopy.

Authors:  Isabelle Dragomir; Andrew Hagarman; Carmichael Wallace; Reinhard Schweitzer-Stenner
Journal:  Biophys J       Date:  2006-11-10       Impact factor: 4.033

4.  Investigations of vibrational coherence in the low-frequency region of ferric heme proteins.

Authors:  Flaviu Gruia; Minoru Kubo; Xiong Ye; Paul M Champion
Journal:  Biophys J       Date:  2007-12-07       Impact factor: 4.033
  4 in total

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