Carboxypeptidase B2/CPB2 protein cleaves C-terminal arginine or lysine residues from active peptides, regulating their activities. It also down-regulates fibrinolysis by removing C-terminal lysine residues from degraded fibrin. CPB2 contributes to peptide signaling and fibrinolysis regulation. Carboxypeptidase B2/CPB2 Protein, Mouse (HEK293, His) is the recombinant mouse-derived Carboxypeptidase B2/CPB2 protein, expressed by HEK293 , with C-His labeled tag.