• Species Reactivity

  Human

• Specificity

  Detects human Carboxypeptidase B1/CPB1 in direct ELISAs and Western blots. In direct ELISAs and Western blots, no cross-reactivity with recombinant human (rh) CPA1, rhCPA2, rhCPE, recombinant mouse (rm) CPA4, and rmCPB1 is observed.

• Source

  Monoclonal Mouse IgG    _2A Clone # 438806

• Purification

  Protein A or G purified from hybridoma culture supernatant

• Immunogen

  Mouse myeloma cell line NS0-derived recombinant human Carboxypeptidase B1/CPB1    
  His16-Tyr417    
  Accession # P15086

• Formulation

  Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. *Small pack size (SP) is supplied as a 0.2 µm filtered solution in PBS.

• Label

  Unconjugated

Applications

• Recommended    
  Concentration

  Sample

• Western Blot

  1 µg/mL

  Recombinant Human Carboxypeptidase B1/CPB1 (Catalog # )

• 
  

• Immunoprecipitation

  25 µg/mL

  Conditioned cell culture medium spiked with Recombinant Human Carboxypeptidase B1/CPB1 (Catalog # ),

• 
  

Please Note: Optimal dilutions should be determined by each laboratory for each application.  are available in the Technical Information section on our website.

Preparation and Storage

• Reconstitution

  Reconstitute at 0.5 mg/mL in sterile PBS.

• Shipping

  The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below. *Small pack size (SP) is shipped with polar packs. Upon receipt, store it immediately at -20 to -70 °C

• Stability & Storage

  Use a manual defrost freezer and avoid repeated freeze-thaw cycles.    

• 12 months from date of receipt, -20 to -70 °C as supplied.

• 1 month, 2 to 8 °C under sterile conditions after reconstitution.

• 6 months, -20 to -70 °C under sterile conditions after reconstitution.

Background: Carboxypeptidase B1/CPB1

Carboxypeptidase B1, encoded by the CPB1 gene, specifically cleaves the C-terminal Arg and Lys residues with a preference for Arg (1). Expressed mainly in pancreas, CPB1 is a useful serum marker for acute pancreatitis (2). The deduced amino acid (aa) sequence of human CPB1 consists of a signal peptide (aa 1-15), a pro region (aa 16-110), and a mature chain (aa 111-417). Human CPB1 shares 98%, 84%, 76%, 75%, and 84% aa sequence identity with chimpanzee, dog, rat, mouse and chicken CPB1, respectively.

• References:

1. Aviles, F.X. and J. Vendrell (2004) in Handbook of Proteolytic Enzymes (ed. Barrett, A.J. et al.) p. 831, Academic Press, San Diego.
   

2. Yamamoto, K.K. et al. (1992) J. Biol. Chem. 267:2575.

• Entrez Gene IDs:

  1360 (Human); 76703 (Mouse)

• Alternate Names:

  carboxypeptidase B; carboxypeptidase B1 (tissue); Carboxypeptidase B1; CPB; CPB1; DKFZp779K1333; EC 3.4.17; EC 3.4.17.2; Pancreas-specific protein; PASP; PCPB; procarboxypeptidase B