Spin delocalization over type zero copper.

doi:10.1021/ic202336m

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Article

Spin delocalization over type zero copper.

Inorganic chemistry - 2 Apr 2012

Potapov Alexey, Lancaster Kyle M, Richards John H, Gray Harry B, Goldfarb Daniella

Abstract excerpt

Hard-ligand, high-potential copper sites have been characterized in double mutants of Pseudomonas aeruginosa azurin (C112D/M121X (X = L, F, I)). These sites feature a small A(zz)(Cu) splitting in the EPR spectrum together with enhanced electron transfer activity. Due to these unique properties, these constructs have been called "type zero" copper sites. In contrast, the single mutant, C112D, features a large...

Topics

Aspartic Acid
Azurin
Copper
Cysteine
Electron Spin Resonance Spectroscopy
Electron Transport
Electrons
Escherichia coli
Histidine
Leucine
Ligands
Magnetic Resonance Spectroscopy
Methionine
Models, Molecular
Mutation
Oxidation-Reduction
Pseudomonas aeruginosa
Recombinant Proteins

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Identifiers

PMID: 22432748
DOI: 10.1021/ic202336m
PMCID: PMC3322426

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