The discontinuous polyacrylamide gel electrophoresis system devised by Laemmli (Nature 227:680-685, 1970) has not only been used in numerous laboratories but has also been modified in several ways since its birth. In our laboratories, we use a modified Laemmli SDS-PAGE system for following protein purification as well as for analysis of certain protein-protein interactions, mainly involving filametous actin.
Keywords: SDS-PAGE; polyacrylamide gel electrophoresis.