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Carboxypeptidase A1 / CPA1 Antibody, Rabbit MAb

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CPA1Antibody Product Information
Antigen:Recombinant Mouse Carboxypeptidase A1 / CPA1 protein (Catalog#50448-M08H)
Clone ID:003
Ig Type:Rabbit IgG
Concentration:
Formulation:0.2 μm filtered solution in PBS with 5% trehalose
Preparation:This antibody was obtained from a rabbit immunized with purified, recombinant Mouse Carboxypeptidase A1 / CPA1 (rM Carboxypeptidase A1 / CPA1; Catalog#50448-M08H; NP_079626.2; Met 1-Tyr 419).
CPA1Antibody Usage Guide
Specificity:Mouse Carboxypeptidase A1 / CPA1
No cross-reactivity in ELISA with
Human CPA1
Application:ELISA

ELISA: 0.1-0.2 μg/mL

This antibody can be used at 0.1-0.2 μg/mL with the appropriate secondary reagents to detect Mouse CPA1. The detection limit for Mouse CPA1 is approximately 0.0195 ng/well.

Storage:This antibody can be stored at 2℃-8℃ for one month without detectable loss of activity. Antibody products are stable for twelve months from date of receipt when stored at -20℃ to -70℃. Preservative-Free.
Sodium azide is recommended to avoid contamination (final concentration 0.05%-0.1%). It is toxic to cells and should be disposed of properly. Avoid repeated freeze-thaw cycles.
Background

Human Carboxypeptidase A1 (CPA1)is secreted as a pancreatic procarboxypeptidase, and cleaves the C-terminal amide or ester bond of peptides that have a free C-terminal carboxyl group, with the preference of  residues with aromatic or branched aliphatic side chains. CPA1 comprises a signal peptide, a pro region and a mature chain, and can be activated after cleavage of the pro peptide. In contrast to procarboxypeptidase B which was always secreted by the pancreas as a monomer, procarboxypeptidase A occurs as a monomer and/or associated to one or two functionally different proteins, such as zymogen E, and is involved in zymogen inhibition. Three different forms of human pancreatic procarboxypeptidase A have been isolated.

References
  • Catasus, L. et al., 1992, Biochem. J. 287: 299-303.
  • Moulard, M. et al., 1990, FEBS. Lett. 261: 179-183.
  • Aloy, P. et al., 1998, Biol. Chem. 379: 149-155.
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