Recombinant Human Carboxypeptidase A1/CPA1 Protein (His Tag)(Active) | PKSH031565

Recombinant Human Carboxypeptidase A1/CPA1 Protein (His Tag)(Active) | PKSH031565 | Gentaur US, UK & Europe Disrtribition

Synonyms: Carboxypeptidase A1; CPA1; CPA

Active Protein: Active protein

Activity: A DNA sequence encoding the human CPA1 precursor (NP_001859.1) (Met 1-Tyr 419) was expressed with a C-terminal polyhistidine tag.

Protein Construction: A DNA sequence encoding the human CPA1 precursor (NP_001859.1) (Met 1-Tyr 419) was expressed with a C-terminal polyhistidine tag.

Fusion Tag: C-His

Species: Human

Expressed Host: HEK293 Cells

Shipping: This product is provided as lyophilized powder which is shipped with ice packs.

Purity: > 97 % as determined by reducing SDS-PAGE.

Endotoxin: < 1.0 EU per µg as determined by the LAL method.

Stability and Storage: Generally, lyophilized proteins are stable for up to 12 months when stored at -20 to -80℃. Reconstituted protein solution can be stored at 4-8℃ for 2-7 days. Aliquots of reconstituted samples are stable at < -20℃ for 3 months.

Molecular Mass: 47 kDa

Formulation: Lyophilized from sterile PBS, pH 7.4

Reconstitution: Please refer to the printed manual for detailed information.

Background: 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.

Research Area: Signal Transduction, Cell biology, metabolism,