Carboxypeptidase A1 encoded by the CPA1 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 or branched aliphatic side chains including Phe, Tyr, Trp, Leu or Ile. It is important in the degradation of food proteins to produce essential amino acids such as Phe and Trp. The deduced amino acid sequence of human CPA1 consists of a signal peptide (residues 1 to 16), a pro region (residue 17 to 110), and a mature chain (residues 111 to 419). The purified rhCPA1 corresponds to the pro form which can be activated.
Human Carboxypeptidase A1/CPA1 Alexa Fluor™ Plus 647‑conjugated Antibody
R&D Systems | Catalog # AF2856AFP647
Key Product Details
Species Reactivity
Human
Applications
Western Blot, Neutralization, Immunoprecipitation
Label
Alexa Fluor Plus 647 (Excitation = 658 nm, Emission = 675 nm)
Antibody Source
Polyclonal Goat IgG
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Product Specifications
Specificity
Detects human Carboxypeptidase A1/CPA1 in direct ELISAs and Western blots. In direct ELISAs, approximately 40% cross‑reactivity with recombinant mouse CPA1 is observed and less than 10% cross-reactivity with recombinant human CPB1 is observed.
Clonality
Polyclonal
Host
Goat
Isotype
IgG
Applications
Application
Recommended Usage
Immunoprecipitation
Optimal dilution of this antibody should be experimentally determined.
Western Blot
Optimal dilution of this antibody should be experimentally determined.
Neutralization
Optimal dilution of this antibody should be experimentally determined.
Formulation, Preparation, and Storage
Formulation
Supplied 0.2 mg/mL in a saline solution containing BSA and Sodium Azide.
Shipping
The product is shipped with polar packs. Upon receipt, store it immediately at the temperature recommended below.
Stability & Storage
Protect from light. Do not freeze. 12 months from date of receipt, 2 to 8 °C as supplied
Background: Carboxypeptidase A1/CPA1
References
- Auld, D.S. (2004) in Handbook of Proteolytic Enzymes (ed. Barrett, et al.) pp. 812, Academic Press, San Diego.
Alternate Names
CPA1
Gene Symbol
CPA1
UniProt
Additional Carboxypeptidase A1/CPA1 Products
Product Documents
Certificate of Analysis
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Note: Certificate of Analysis not available for kit components.
Product Specific Notices
This product is provided under an intellectual property license from Life Technologies Corporation. The transfer of this product is conditioned on the buyer using the purchased product solely in research conducted by the buyer, excluding contract research or any fee for service research, and the buyer must not (1) use this product or its components for (a) diagnostic, therapeutic or prophylactic purposes; (b) testing, analysis or screening services, or information in return for compensation on a per-test basis; or (c) manufacturing or quality assurance or quality control, and/or (2) sell or transfer this product or its components for resale, whether or not resold for use in research. For information on purchasing a license to this product for purposes other than as described above, contact Life Technologies Corporation, 5781 Van Allen Way, Carlsbad, CA 92008 USA or outlicensing@thermofisher.com.
For research use only
Related Research Areas
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Protocols
Find general support by application which include: protocols, troubleshooting, illustrated assays, videos and webinars.
- Cellular Response to Hypoxia Protocols
- Immunoprecipitation Protocol
- R&D Systems Quality Control Western Blot Protocol
- Troubleshooting Guide: Western Blot Figures
- Western Blot Conditions
- Western Blot Protocol
- Western Blot Protocol for Cell Lysates
- Western Blot Troubleshooting
- Western Blot Troubleshooting Guide
- View all Protocols, Troubleshooting, Illustrated assays and Webinars
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