Carboxypeptidase E/CPE Antibody [Unconjugated]

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A172 human glioblastoma cell line was stained with Goat Anti-Human Carboxypeptidase E/CPE Antigen Affinity‑purified Polyclonal Antibody (Catalog # AF3587, filled histogram) or control antibody (Catalog # AB-108-C, ...read more
Carboxypeptidase E/CPE was detected in immersion fixed HepG2 human hepatocellular carcinoma cell line using Goat Anti-Human Carboxypeptidase E/CPE Antigen Affinity-purified Polyclonal Antibody (Catalog # AF3587) at 10 ...read more
Carboxypeptidase E/CPE was detected in immersion fixed frozen sections of mouse embryo (9.5 d.p.c.) using Goat Anti-Human Carboxypeptidase E/CPE Antigen Affinity-purified Polyclonal Antibody (Catalog # AF3587) at 10 ...read more

Product Details

Summary
Reactivity HuSpecies Glossary
Applications WB, IHC, IP, CyTOF-ready, Flow, ICC/IF
Clonality
Polyclonal
Host
Goat
Conjugate
Unconjugated
Concentration
LYOPH

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Catalog# & Formulation Size Price

Carboxypeptidase E/CPE Antibody [Unconjugated] Summary

Immunogen
Mouse myeloma cell line NS0-derived recombinant human Carboxypeptidase E/CPE
Arg42-Ser453
Accession # P16870
Specificity
Detects human Carboxypeptidase E/CPE in direct ELISAs and Western blots. In direct ELISAs and Western blots, less than
1% cross‑reactivity with recombinant human (rh) CPA1, recombinant mouse CPA4 and rhCPB1 is observed.
Source
N/A
Isotype
IgG
Clonality
Polyclonal
Host
Goat
Gene
CPE
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Applications/Dilutions

Dilutions
  • Western Blot 0.1 ug/mL
  • Immunohistochemistry 5-15 ug/mL
  • Immunoprecipitation 25 ug/mL
  • CyTOF-ready
  • Immunocytochemistry 5-15 ug/mL
  • Intracellular Staining by Flow Cytometry 2.5 ug/10^6 cells

Packaging, Storage & Formulations

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.
Buffer
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.
Preservative
No Preservative
Concentration
LYOPH
Reconstitution Instructions
Reconstitute at 0.2 mg/mL in sterile PBS.

Notes

This product is produced by and ships from R&D Systems, Inc., a Bio-Techne brand.

Alternate Names for Carboxypeptidase E/CPE Antibody [Unconjugated]

  • Carboxypeptidase E
  • Carboxypeptidase H
  • CPE
  • CPH
  • CPH-1
  • EC 3.4.17
  • EC 3.4.17.10
  • Enkephalin convertase
  • Prohormone-processing carboxypeptidase

Background

Encoded by the CPE gene and also known as Carboxypeptidase H, CPE is a single chain peptidase with an optimal pH range between 5.0‑6.0. It is a zinc metallocarboxypeptidase that removes basic amino acids from the C-terminus of peptides (1). Like other metallocarboxypeptidases, its activity is stimulated by millimolar concentrations of Co2+. Its activity is regulated by pH-induced aggregation above pH 6.0. Its major function seems to process numerous peptide hormones and neurotransmitters. In addition to its proteolytic function, it also plays a role as a sorting receptor (2), which may be attributed to the sorting of this protein into the secretory pathway. The C-terminal domain of CPE causes the peripheral association of CPE with membranes below neutral pH, resulting in the association of this protein into membranes (3). CPE knockout mice live but become obese due to impaired glucose clearance and insulin resistance (4).

  1. Fricker, L.D. (2004) in Handbook of Proteolytic Enzymes, Barrett, A.J. et al. eds., pp. 840.
  2. Cool, D.R. et al. (1997) Cell 88:73.
  3. Zhang, C-F. et al.  (2003) Biochem. J. 369:453.
  4. Cawley, N.X. et al. (2004) Endocrinology 145:5807.

Limitations

This product is for research use only and is not approved for use in humans or in clinical diagnosis. Primary Antibodies are guaranteed for 1 year from date of receipt.

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Bioinformatics

Gene Symbol CPE
Uniprot