The MOPC-31C is a useful for comparative expression analysis including flow cytometry, Western blotting, immunoprecipitation, immunohistochemistry, and immunocytochemistry. The transplantable plasmacytoma MOPC-31C was induced by intraperitoneal injection of mineral oils into BALB/c mice. It was adapted to continuous cell culture by alternate passage in animals.

Each lot of MOPC-31C has been routinely validated with four serially diluted concentrations to determine any nonspecific binding in human PBMCs by flow cytometric analysis. It is suggested to use the same concentration of purified MOPC-31C isotype control immunoglobulin as that of IgG1, k primary antibody