About RecombiMAb rat IgG1 isotype control, anti-hen egg lysozyme This rat IgG1 isotype control monoclonal antibody reacts with hen egg lysozyme (HEL). Because HEL is not expressed by mammals this antibody is ideal for use as an isotype-matched control for rat IgG1 antibodies in in vivo and in vitro applications. RecombiMAb rat IgG1 isotype control, anti-hen egg lysozyme Specifications IsotypeRat IgG1, κ Recommended Dilution BufferInVivoPure pH 7.0 Dilution Buffer ImmunogenHen egg lysozyme (HEL) FormulationPBS, pH 7.0 Contains no stabilizers or preservatives Endotoxin<1EU/mg (<0.001EU/μg) Determined by LAL gel clotting assay Aggregation<5% Determined by SEC Purity>95% Determined by SDS-PAGE Sterility0.2 μm filtration ProductionPurified from CHO cell supernatant in an animal-free facility PurificationProtein A Molecular Weight150 kDa StorageThe antibody solution should be stored at the stock concentration at 4°C. Do not freeze.