Proteins interactions with reactive oxygen agents may result in covalent modifications of amino acid residues in proteins, formation of protein-protein cross-linkages and oxidation of the protein backbone resulting in protein fragmentation. Oxidation targets for Aβ(1-16) are the histidine residues coordinated to the metal ions. Copper is bound to Aβ in senile plaque of Alzheimer’s disease with Aβ (1-16) taking part in the coordination of the Cu2+ ions. Cu2+ and Zn2+ are linked with the neurotoxicity of Aβ and free radical damage.
Proteins and peptides
Peak Area by HPLC ≥95%
Da Silva, GFZ. et al. J. Biol. Chem. 280, 16601 (2005); Kowalik-Jankowska, T. et al. J. Inorg. Biochem. 98, 940 (2004); Kowalik-Jankowska, T. et al. J. Inorg. Biochem. 95, 270 (2003).