I have a target protein that forms heterotetramer with its co-receptor. Now I would like to obtain its homotetramer through mutagenesis studies. My idea is: first, to get the homotetramer through homology modelling. then, to calculate the energy of the tetramer's surface and find the "hot-spots" to perform the mutations. I don't know if my thought is right or not and that I don't know how to do it. If you can provide any valued suggestions or some other brilliant ideas, please let me know.