Density functional study on UV/VIS spectra of copper-protein active sites: the effect of mutations.

Abstract excerpt

UV/VIS Electron excitation spectra have been computed for large, realistic model systems of the blue copper protein family. Fully quantum-chemical calculations at the density-functional theory level employing polarized triple-ζ basis sets have been performed on systems of over 120 atoms, without symmetry. Different mutants, with the ligating methionine of the wild type Cu center exchanged for histidine (M121H)...

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