Structure and Electrochemical Studies of [(trispicMeen)ClFeIIIOFeIIICl(trispicMeen)]2+. Spectroscopic Characterization of the Mixed-Valence FeIIIOFeIIForm. Relevance to the Active Site of Dinuclear Iron−Oxo Proteins

1997 ◽  
Vol 36 (5) ◽  
pp. 846-853 ◽  
Author(s):  
Alexander L. Nivorozhkin ◽  
Elodie Anxolabéhère-Mallart ◽  
Pierre Mialane ◽  
Roman Davydov ◽  
Jean Guilhem ◽  
...  
Keyword(s):  
Active Site ◽  
Mixed Valence ◽  
Spectroscopic Characterization ◽  
Electrochemical Studies ◽  
Dinuclear Iron

Replacement of non-heme Fe(II) with Cu(II) in the α-ketoglutarate dependent DNA repair enzyme AlkB: Spectroscopic characterization of the active site

2007 ◽  
Vol 101 (7) ◽  
pp. 1043-1048 ◽  
Author(s):  
Boris Bleijlevens ◽  
Tara Shivarattan ◽  
Barbara Sedgwick ◽  
Stephen E.J. Rigby ◽  
Steve J. Matthews
Keyword(s):  
Dna Repair ◽  
Active Site ◽  
Spectroscopic Characterization ◽  
Repair Enzyme

Cytochrome cbb3 oxidase and bacterial microaerobic metabolism

2002 ◽  
Vol 30 (4) ◽  
pp. 653-658 ◽  
Author(s):  
R. S. Pitcher ◽  
T. Brittain ◽  
N. J. Watmugh
Keyword(s):  
Active Site ◽  
Reduction Potential ◽  
Oxygen Affinity ◽  
Pseudomonas Stutzeri ◽  
Spectroscopic Characterization ◽  
High Oxygen Affinity ◽  
Copper Oxidase ◽  
Reduced State

Cytochrome cbb3 oxidase is a member of the haem-copper oxidase superfamily. It is characterized by its high oxygen affinity, while retaining the ability to pump protons. These attributes are central to its proposed role in bacterial microaerobic metabolism. Recent spectroscopic characterization of both the cytochrome cbb3 oxidase complex from Pseudomonas stutzeri and the dihaem ccoP subunit expressed separately in Escherichia coli has revealed the presence of a low-spin His/His co-ordinated c-type cytochrome. The low midpoint reduction potential of this haem (Em < + 100 mV), together with its unexpected ability to bind CO in the reduced state at the expense of the distal histidine ligand, raises questions about the role of the ccoP subunit in the delivery of electrons to the active site.

Spectroscopic characterization of the trinuclear copper active site in laccase

1989 ◽  
Vol 36 (3-4) ◽  
pp. 245
Author(s):  
J.L. Cole ◽  
E.K. Yang ◽  
P.O. Sandusky ◽  
E.I. Solomon
Keyword(s):  
Active Site ◽  
Spectroscopic Characterization
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