Lookup NU author(s): Professor Christopher Dennison,
Dr Katsuko Sato
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The native type 1 copper ion of spinach plastocyanin has been substituted with Co(II). The UV/vis spectrum of this derivative is similar to those for other Co(II)-substituted cupredoxins. The paramagnetic 1H NMR spectrum of Co(II) plastocyanin has been completely assigned. A number of similar studies on Co(II) cupredoxins have been published, but this is the first such analysis of a substituted plastocyanin that possesses the archetypal type 1 active site. A truly representative comparison of the available paramagnetic 1H NMR data for Co(II) cupredoxins is now possible. We demonstrate in this work that there is very little difference in the metal-ligand contacts between the Co(II) derivatives of cupredoxins possessing a type 1 axial site (plastocyanin) and those having perturbed (rhombic) spectroscopic features.
Author(s): Dennison C, Sato K
Publication type: Article
Publication status: Published
Journal: Inorganic Chemistry
ISSN (print): 0020-1669
ISSN (electronic): 1520-510X
Publisher: American Chemical Society
PubMed id: 14966988
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