Small Scale Intramolecular Flexibility in 111mCd-Plastocyanin

Author:

Tröger W.1,Lippert C.1,Butz T.1,Sigfridsson K.2,Hansson Ö.2,McLaughlin E.3,Bauer R.3,Danielsen E.4,Hemmingsen L.4,Bjerrum M. J.4,Isolde 5

Affiliation:

1. Fakultät für Physik und Geowissenschaften, Universität Leipzig, Germany

2. Department of Biochemistry and Biophysics, Chalmers Technical University and Göteborg University, Sweden

3. Department of Biochemistry, University of Cambridge, United Kingdom

4. Department of Mathematics and Physics, Royal Veterinary and Agricultural University, Frederiksberg, Denmark

5. CERN, Geneva, Switzerland

Abstract

Abstract The effect of mutations in the vicinity of the putative electron transfer path on the metal center of the electron transfer protein plastocyanin (spinacea) is investigated by monitoring the nuclear quadrupole interaction of 111mCd in Cd-derivatives of the protein via time differential perturbed angular correlation. The spectra for the wild type protein and the mutants were rather similar. All spectra exhibit a peculiar line profile which points towards a small scale intramolecular flexibility of the metal center.

Publisher

Walter de Gruyter GmbH

Subject

Physical and Theoretical Chemistry,General Physics and Astronomy,Mathematical Physics

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