Human Carboxypeptidase A2/CPA2 Antibody

Name: Human Carboxypeptidase A2/CPA2 Antibody
Brand: R&D Systems
SKU: MAB28961

R&D Systems, part of Bio-Techne | Catalog # MAB28961

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Product Specifications
Applications
Preparation & Storage
Background
Product Documents
Specific Notices

Key Product Details

Species Reactivity

Human

Applications

Immunoprecipitation, Western Blot

Label

Unconjugated

Antibody Source

Monoclonal Mouse IgG_2B Clone # 384023

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Product Specifications

Immunogen

Mouse myeloma cell line NS0-derived recombinant human Carboxypeptidase A2/CPA2
Leu18-His417
Accession # P48052

Specificity

Detects human Carboxypeptidase A2/CPA2 in direct ELISAs and Western blots. In direct ELISAs and Western blots, no cross-reactivity with recombinant human (rh) CPA1, rhCPA4, rhCPB1, or rhCPE is observed. Recognizes the pro form (aa 17‑417), but not the activated enzyme (aa 113‑417) in Western blots.

Clonality

Monoclonal

Host

Mouse

Isotype

IgG_2B

Applications for Human Carboxypeptidase A2/CPA2 Antibody

Application

Recommended Usage

Immunoprecipitation

25 µg/mL
Sample: Conditioned cell culture medium spiked with Recombinant Human Carboxypeptidase A2/
CPA2 (Catalog # 2896-ZN), see our available Western blot detection antibodies

Western Blot

1 µg/mL
Sample: Recombinant Human Carboxypeptidase A2/CPA2 (Catalog # 2896-ZN)

Formulation, Preparation, and Storage

Purification

Protein A or G purified from hybridoma culture supernatant

Reconstitution

Reconstitute at 0.5 mg/mL in sterile PBS. For liquid material, refer to CoA for concentration.

Formulation

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

Shipping

Lyophilized product is shipped at ambient temperature. Liquid small pack size (-SP) is shipped with polar packs. Upon receipt, store immediately at the temperature recommended below.

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 A2/CPA2

Carboxypeptidase A2 encoded by the CPA2 gene cleaves the C-terminal amide or ester bond of peptides that have a free C-terminal carboxyl group (1). It prefers the C-terminal residues with aromatic side chains including Phe, Tyr, and Trp. The deduced amino acid sequence of human CPA2 consists of a signal peptide (aa 1 to 16), a pro region (aa 17 to 112), and a mature chain (aa 113 to 417). The amino acid sequence of human CPA2 is 99.5%, 90%, 87%, 86% and 70% identical to that of chimpanzee, canine, rat, mouse and chicken.

References

Auld, D.S. (2004) in Handbook of Proteolytic Enzymes (ed. Barrett, et al.) p. 821, Academic Press, San Diego.

Alternate Names

CPA2

Entrez Gene IDs

1358 (Human)

Gene Symbol