Mouse CD46 Recombinant Protein (N-His) is a recombinant protein expressed in E. coli, spanning Asp43-Gly297, with an N-terminal His tag. Predicted molecular weight: 30.70 kDa. Purity: >90% as determined by SDS-PAGE. Supplied lyophilized from a solution in PBS pH 7.4, 1 mM EDTA, 4% Trehalose, 1% Mannitol. Applications: ELISA, immunogen, SDS-PAGE and Western blot. Membrane cofactor protein is a ~40 kDa protein. May be involved in the fusion of the spermatozoa with the oocyte during fertilization. For research use only.