Hi SedBad,
I noticed that you posted this question once before and recieved some valuable sites that would be useful to go to and explore. I encourage you to use these sites, and spend some time searching on sources such as google, wikipedia, or science search engines, for other examples of protein rich biopolymers. Also, you must understand that we, as mentors, cannot give you all the answers, but can give you websites or sources from which you can find what you are looking for. If the internet doesn't prove to be useful, check out non-digital sources, and don't be afraid to ask your science teacher either! Good luck searching!