Work

Light‐induced Fourier transform infrared (FTIR) spectroscopic investigations of the primary donor oxidation in bacterial photosynthesis

Year: 1985

Type: article

Abstract: Fourier transform infrared (FTIR) difference spectroscopy of the primary electron donor (P) photo–oxidation has been performed for reaction centers (RCs) and chromatophores of purple photosynthetic bacteria. In the 1800–650 cm−1 spectral region highly reproducible absorbance changes were obtained that can be related to specific changes of individual bond absorption. Several bands in the difference spectra are tentatively assigned to changes of intensity and position of the keto and ester C−O vibrations of the P bacteriochlorophylls, and a possible interpretation in terms of changes of their environment or type of bonding to the protein is given. Small difference bands in the amide I and II region allow only minor protein conformational changes.

Source: FEBS Letters

DOI: 10.1016/0014-5793(85)81247-3

Authors: W. Mäntele, E. Nabedryk, B.A. Tavitian, W. Kreutz, J. Breton

Institutions: University of Freiburg, CEA Paris-Saclay

Language: English

Topic: Photosynthetic Processes and Mechanisms

Subfield: Molecular Biology

Field: Biochemistry, Genetics and Molecular Biology

Domain: Life Sciences

Open Access status: bronze

OpenAlex ID: W2012819950

FWCI: 1.027

Cites: 19

Cited by: 82

Related to: 10