The cooperative transport of electrons and protons in the alpha-helix polypeptide chain

In this paper, we investigate the behaviour of electrons in the -helix polypeptide chain and show that an electron can be bound in the compression area of the proton sublattice and become an electrosoliton state described by a bell-shaped electronic wave function. Due to the coupling between the three hydrogen-bonded chains, symmetric and asymmetric electrosoliton-soliton pairs are obtained.