Literature DB >> 281677

Spectroscopic studies of oxy- and carbonmonoxyhemoglobin after pulsed optical excitation.

B I Greene, R M Hochstrasser, R B Weisman, W A Eaton.   

Abstract

The photolysis of HbO2 and HbCO has been investigated with picosecond laser techniques. Transient absorption spectra were measured in the Soret and visible regions after excitation with 353- or 530-nm pulses. The photoproducts appeared within 8 psec and exhibited considerably broadened deoxyhemoglobin-like spectra, which persisted to 680 psec. The altered spectra are attributed to the production of deoxyheme conformational and spin states that might result from the intense excitation.

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Year:  1978        PMID： 281677      PMCID： PMC392939          DOI： 10.1073/pnas.75.11.5255

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


  22 in total

1.  The photochemical formation of a quickly reacting form of haemoglobin.

Authors:  Q H GIBSON
Journal:  Biochem J       Date:  1959-02       Impact factor: 3.857

2.  Rate of quaternary structure change in hemoglobin measured by modulated excitation.

Authors:  F A Ferrone; J J Hopfield
Journal:  Proc Natl Acad Sci U S A       Date:  1976-12       Impact factor: 11.205

3.  Properties of the T state of human oxyhemoglobin studies by laser photolysis.

Authors:  C A Sawicki; Q H Gibson
Journal:  J Biol Chem       Date:  1977-11-10       Impact factor: 5.157

4.  Photodissociation of ligands from heme and heme proteins. Effect of temperature and organic phosphate.

Authors:  W A Saffran; Q H Gibson
Journal:  J Biol Chem       Date:  1977-11-25       Impact factor: 5.157

5.  Mechanism of tertiary structural change in hemoglobin.

Authors:  B R Gelin; M Karplus
Journal:  Proc Natl Acad Sci U S A       Date:  1977-03       Impact factor: 11.205

6.  Picosecond photodissociation and subsequent recombination processes in carbon monoxide hemoglobin.

Authors:  L J Noe; W G Eisert; P M Rentzepis
Journal:  Proc Natl Acad Sci U S A       Date:  1978-02       Impact factor: 11.205

7.  Binding of carbon monoxide to isolated hemoglobin chains.

Authors:  N Alberding; S S Chan; L Eisenstein; H Frauenfelder; D Good; I C Gunsalus; T M Nordlund; M F Perutz; A H Reynolds; L B Sorensen
Journal:  Biochemistry       Date:  1978-01-10       Impact factor: 3.162

8.  Studies on the quantum yields of the photodissociation of carbon monoxide from hemoglobin and myoglobin.

Authors:  R W Noble; M Brunori; J Wyman; E Antonini
Journal:  Biochemistry       Date:  1967-04       Impact factor: 3.162

9.  Dynamics of ligand binding to myoglobin.

Authors:  R H Austin; K W Beeson; L Eisenstein; H Frauenfelder; I C Gunsalus
Journal:  Biochemistry       Date:  1975-12-02       Impact factor: 3.162

10.  On the photosensitivity of liganded hemoproteins and their metal-substituted analogues.

Authors:  B M Hoffman; Q H Gibson
Journal:  Proc Natl Acad Sci U S A       Date:  1978-01       Impact factor: 11.205
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  27 in total

1.  Subpicosecond resonance Raman spectroscopy of carbonmonoxy- and oxyhemoglobin.

Authors:  R van den Berg; M A el-Sayed
Journal:  Biophys J       Date:  1990-10       Impact factor: 4.033

2.  Heme photolysis occurs by ultrafast excited state metal-to-ring charge transfer.

Authors:  S Franzen; L Kiger; C Poyart; J L Martin
Journal:  Biophys J       Date:  2001-05       Impact factor: 4.033

3.  Picosecond study of the near infrared absorption band of hemoglobin after photolysis of carbonmonoxyhemoglobin.

Authors:  R C Dunn; J D Simon
Journal:  Biophys J       Date:  1991-10       Impact factor: 4.033

4.  Direct observations of ligand dynamics in hemoglobin by subpicosecond infrared spectroscopy.

Authors:  P A Anfinrud; C Han; R M Hochstrasser
Journal:  Proc Natl Acad Sci U S A       Date:  1989-11       Impact factor: 11.205

5.  Molecular dynamics simulations of cooling in laser-excited heme proteins.

Authors:  E R Henry; W A Eaton; R M Hochstrasser
Journal:  Proc Natl Acad Sci U S A       Date:  1986-12       Impact factor: 11.205

6.  Ligand dynamics in the photodissociation of carboxyhemoglobin by subpicosecond transient infrared spectroscopy.

Authors:  L Rothberg; T M Jedju; R H Austin
Journal:  Biophys J       Date:  1990-02       Impact factor: 4.033

7.  Spin-dependent mechanism for diatomic ligand binding to heme.

Authors:  Stefan Franzen
Journal:  Proc Natl Acad Sci U S A       Date:  2002-12-11       Impact factor: 11.205

8.  Photodissociation of CO and O2 from alpha and beta hemoglobin chains studied by using picosecond absorption spectroscopy.

Authors:  C R Guest; L J Noe
Journal:  Biophys J       Date:  1987-11       Impact factor: 4.033

9.  Picosecond transient absorption study of photodissociated carboxy hemoglobin and myoglobin.

Authors:  S M Janes; G A Dalickas; W A Eaton; R M Hochstrasser
Journal:  Biophys J       Date:  1988-09       Impact factor: 4.033

10.  Applications of 2D IR spectroscopy to peptides, proteins, and hydrogen-bond dynamics.

Authors:  Yung Sam Kim; Robin M Hochstrasser
Journal:  J Phys Chem B       Date:  2009-06-18       Impact factor: 2.991
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