Abstract
In the current-voltage measurement of DNA-protein complex, the characteristics show threshold properties depending on temperature, and these properties can be explained by Coulomb blockade model.
In our research, we reported electric characteristics of the ultrathin film of cytochrome c and compared this results with previous reports. As a result, it is confirmed that the charge energy determines threshold voltage comes from single protein molecules, and as the structural factor, DNA determines the dimension of the Coulomb blockade array.
