Copper(II) complexes of terminally free alloferon peptide mutants containing two different histidyl (H(1) and H(6) or H(9) or H(12)) binding sites Structure Stability and Biological Activity.

Abstract excerpt

Mono- and dinuclear copper(II) complexes of the alloferon 1 with point mutations H9A/H12A H(1)GVSGH(6)GQA(9)GVA(12)G, H6A/H12A H(1)GVSGA(6)GQH(9)GVA(12)G and H6A/H9A H(1)GVSGA(6)GQA(9)GVH(12)G have been studied by potentiometric, UV-visible, CD, EPR spectroscopic, and mass spectrometry (MS) methods. Complete complex speciation at metal-to-ligand molar ratios 1:1 and 2:1 was obtained. For all systems studied in...

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