The calreticulin/CALR protein acts as a calcium-binding partner and promotes endoplasmic reticulum folding, assembly, and quality control. It interacts with monoglucosylated glycoproteins and mediates nuclear export of the NR3C1 DNA-binding domain. Calreticulin/CALR Protein, Mouse (P.pastoris, His) is the recombinant mouse-derived Calreticulin/CALR protein, expressed by P. pastoris , with N-6*His labeled tag.