Mouse Anti-Calpain I, u-Calpain (Large subunit, p80), Monoclonal Antibody,The calpains are calcium-dependent cysteine proteases that are widely expressed in mammalian systems. Both m-calpain (calpain II) and μ-calpain (calpain I) are composed of an 80 kD subunit and a 30 kD subunit. Whereas the 30 kD subunit is shared by both enzymes, the larger catalytic subunits are different and exhibit the distinct Ca ++ requirements that are suggested by their names. Whereas m-calpain requires millimolar ( mM) levels of calcium, μ-calpain is active at micromolar (uM) concentrations of Ca ++. In addition to the ubiquitously expressed m- and μcalpains, some tissue-specific calpains have been identified. The calpains appear to serve multiple physiological roles, and ideas concerning the functions of these enzymes are in a state of rapid flux.
Aufreinigung
Protein A/G Chromatography
Immunogen
Hybridoma produced by the fusion of splenocytes from mice immunized with human calpain I purified from placenta with mouse myeloma.