You are quite right that the properties of most proteins are very different to that of even copolymers. In fact, simple structural proteins (like keratin, coll

You are quite right that the properties of most proteins are very different to that of even copolymers. In fact, simple structural proteins (like keratin, collagen, etc) are much more like synthetic homopolymers than the complex nanomachines such as ATP-synthase or the proteosome.