Energy landscape of the tautomer states of mesoporphyrin embedded in horseradish peroxidase

Biophys J. 1995 Aug;69(2):577-82. doi: 10.1016/S0006-3495(95)79931-3.

Abstract

The energy hypersurface of the dominant tautomer states of mesoporphyrin-substituted horseradish peroxidase was determined by creation of a nonequilibrium population of these states through photochemical transformation at 5 K and measurement of the temperature changes of the respective spectral bands as they were warmed to room temperature.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Biophysical Phenomena
  • Biophysics
  • Horseradish Peroxidase / chemistry*
  • Mesoporphyrins / chemistry*
  • Molecular Structure
  • Photochemistry
  • Spectrometry, Fluorescence
  • Thermodynamics

Substances

  • Mesoporphyrins
  • mesoporphyrin IX
  • Horseradish Peroxidase