Article
Replacement of the methionine axial ligand in cytochrome c(550) by a lysine: effects on the haem electronic structure.
FEBS letters - 16 Jan 2002
Louro Ricardo O, de Waal Ellen C, Ubbink Marcellus, Turner David L
Abstract excerpt
The prosthetic group of low-spin haem proteins is an iron porphyrin with two axial ligands, typically histidine, methionine or lysine. Determining the geometry of the axial ligands is an important step in structural characterisation, particularly in the paramagnetic oxidised forms. This work extends earlier studies of the hyperfine nuclear magnetic resonance (NMR) shifts of haem substituents in bis-His and...
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