Do copper ions break down the ionic bonds between the polypeptide chains of egg albumen - thus causing it to denature?
The most significant chromophore for proteins is the amide group of the polypeptide backbone.
The geometry of the polypeptide hydrogen bonds involving the peptide backbone atoms were also analyzed and shown to be fairly independent of sidechain influences.
Proteins are composed of complex polypeptide chains with unique 3-dimensional structures.
In the molecule above, the two peptides have joined together to form a dipeptide; many peptides join together to form a polypeptide.