NMR redox studies of flavocytochrome c(3) from Shewanella frigidimarina
Pessanha, M., Turner, D. L., Rothery, E. L., Pankhurst, K. L., Reid, G. A., Chapman, S. K., Xavier, A. V. and Salgueiro, C. A. (2003) NMR redox studies of flavocytochrome c(3) from Shewanella frigidimarina. Inorganica Chimica Acta, 356, 379-381. (doi:10.1016/S0020-1693(03)00179-8).
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Flavocytochrome c(3) is a periplasmic fumarate reductase with M-r 63.8 kDa, isolated from Shewanella frigidimarina NCIMB400. NMR spectroscopy was tested for its potential to elucidate the oxidation profile of each of the four haem groups in the enzyme, using the strategy developed previously to perform the thermodynamic characterization of small tetrahaem cytochromes (FEBS Lett. 314 (1992) 155). This work shows that, despite the large size of the protein, 2D-NMR NOESY experiments can be used to obtain the network of chemical exchange connectivities, between the signals of specific haem groups in sequential oxidation stages.
|Keywords:||shewanella, electron tranfer protein, multihaem, flavocytochrome, nmr, paramagnetic shiftsfumarate reductase, cytochrome c(3), desulfovibrio-vulgaris, energytransduction, putrefaciens mr-1, electron-transfer, heme core, cooperativity, respiration, ncimb400|
Q Science > QD Chemistry
|Divisions:||University Structure - Pre August 2011 > School of Chemistry
|Date Deposited:||23 Feb 2006|
|Last Modified:||02 Mar 2012 12:26|
|RDF:||RDF+N-Triples, RDF+N3, RDF+XML, Browse.|
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