A very widespread discontinuous buffer system is the tris-glycine or "Laemmli" system that stacks at a pH of 6.8 and resolves at a pH of ~8.3-9.0.
Polycomb-group proteins | Trithorax-group proteins | Surface modification of biomaterials with proteins | Structural Classification of Proteins database | penicillin binding proteins (PBPs) | Penicillin binding proteins | FOX proteins | AAA proteins | 2D gel analysis software |