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A scanning tunnelling microscopy study of Clostridium pasteurianum rubredoxin
R Mukhopadhyay1, J J Davis, P Kyritsis
1Department of Chemistry, University of Oxford, UK.
Journal of Inorganic Biochemistry
|May 11, 2000
Abstract:
Scanning tunnelling microscopy (STM), which can provide 'direct' and 'non-averaged' information on molecular structure in three dimensions, has been used to achieve sub-molecular resolution in a 'single molecule' of rubredoxin, an important iron-sulphur protein, at the gold (111)/water interface. The metal-ligand site [Fe(III)-Cys4] appears distinct because of an enhancement of the tunnelling current over this region compared to the surrounding protein structure.