Carboxypeptidase A1 (CPA1) is secreted as a pancreatic peptidase that comes from the precursor form of inactive procarboxypeptidase. CPA1 comprises a signal peptide, a pro region and a mature chain, and can be activated after cleavage of the pro peptide. It has a free C-terminal carboxyl group, with the preference of residues with aromatic or branched aliphatic side chains. CPA1 cleaves the C-terminal amide or ester bond of peptides and involves in zymogen inhibition. Three different forms of human pancreatic procarboxypeptidase A have been isolated. 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.
Product Name:
Carboxypeptidase A1/CPA1 Recombinant Protein (RPES4399)
Product Code:
RPES4399
Size:
10µg
Species:
Human
Expressed Host:
Human Cells
Synonyms:
Carboxypeptidase A1, CPA1, CPA
Accession:
P15085
Sequence:
Lys17-Tyr419
Fusion tag:
C-6His
Endotoxin:
<1.0 EU per µg as determined by the LAL method.
Protein Construction:
Recombinant Human Carboxypeptidase A1 is produced by our Mammalian expression system and the target gene encoding Lys17-Tyr419 is expressed with a 6His tag at the C-terminus.
Purity:
> 95 % as determined by reducing SDS-PAGE.
Mol Mass:
46.6 kDa
AP Mol Mass:
44 kDa
Formulation:
Supplied as a 0.2 µm filtered solution of 20mM TrisHCl, 150mm NaCl, pH 7.5.
Shipping:
This product is provided as liquid. It is shipped at frozen temperature with blue ice/gel packs.Upon receipt, store it immediately at<-20°C.
Stability and Storage:
Store at < -20°C, stable for 6 months. Please minimize freeze-thaw cycles.
