{"product_id":"recombinant-human-carboxypeptidase-a2-cpa2-protein-his-tag","title":"Recombinant Human Carboxypeptidase A2\/CPA2 Protein (His Tag)","description":"\u003cp\u003e\u003cb\u003eSize\u003c\/b\u003e: 50μg\u003c\/p\u003e\u003cp\u003e\u003cb\u003eStorage\u003c\/b\u003e: 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 \u0026lt; -20℃ for 3 months.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eShipping\u003c\/b\u003e: This product is provided as lyophilized powder which is shipped with ice packs.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eExp date\u003c\/b\u003e: 12 months\u003c\/p\u003e\u003cp\u003e\u003cb\u003eCategory ID_II\u003c\/b\u003e: Recombinant Proteins\u003c\/p\u003e\u003cp\u003e\u003cb\u003eCategory ID_III\u003c\/b\u003e: Others\u003c\/p\u003e\u003cp\u003e\u003cb\u003eAbbreviation\u003c\/b\u003e: Carboxypeptidase A2;CPA2\u003c\/p\u003e\u003cp\u003e\u003cb\u003eTarget Synonym\u003c\/b\u003e: CPA2;Carboxypeptidase A2\u003c\/p\u003e\u003cp\u003e\u003cb\u003eResearch Areas\u003c\/b\u003e: Cell biology\u003c\/p\u003e\u003cp\u003e\u003cb\u003eConjugation\u003c\/b\u003e: \u003c\/p\u003e\u003cp\u003e\u003cb\u003eTarget Species\u003c\/b\u003e: Human\u003c\/p\u003e\u003cp\u003e\u003cb\u003eExpression Host\u003c\/b\u003e: HEK293 Cells\u003c\/p\u003e\u003cp\u003e\u003cb\u003eApplication\u003c\/b\u003e: \u003c\/p\u003e\u003cp\u003e\u003cb\u003eFusion tag\u003c\/b\u003e: C-His\u003c\/p\u003e\u003cp\u003e\u003cb\u003eUNIProt ID\u003c\/b\u003e: P48052\u003c\/p\u003e\u003cp\u003e\u003cb\u003eAccession\u003c\/b\u003e: AAP36067.1\u003c\/p\u003e\u003cp\u003e\u003cb\u003eBackground\u003c\/b\u003e: Carboxypeptidase A2 (CPA) is a secreted pancreatic procarboxy-peptidase that cleaves the C-terminal amide or ester bond of peptides that have a free C-terminal carboxyl group. The hydrolytic action of CPA2 was identified with a preference towards long substrates with aromatic amino acids in their C-terminal end, particularly tryptophan. CPA2 comprises a signal peptide, a pro region and a mature chain, and can be activated after cleavage of the pro peptide. Three different forms of human pancreatic procarboxypeptidase A have been isolated, and the A1 and A2 forms are always secreted as monomeric proteins with different biochemical properties. 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.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eConcentration\u003c\/b\u003e: \u003c\/p\u003e\u003cp\u003e\u003cb\u003eActivity\u003c\/b\u003e: Not validated for activity\u003c\/p\u003e\u003cp\u003e\u003cb\u003eSequence\u003c\/b\u003e: Leu17-Tyr417\u003c\/p\u003e\u003cp\u003e\u003cb\u003ePurity\u003c\/b\u003e:  \u0026gt; 95 % as determined by reducing SDS-PAGE.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFormulation\u003c\/b\u003e: Lyophilized from a 0.2 μm filtered solution of 20mM Tris-HCl, 150mm NaCl, pH 7.5.\u003cbr\u003eNormally 5% - 8% trehalose, mannitol and 0.01% Tween 80 are added as protectants before lyophilization.\u003cbr\u003ePlease refer to the specific buffer information in the printed manual.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eReconstitution\u003c\/b\u003e: Please refer to the printed manual for detailed information.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eEndotoxin\u003c\/b\u003e:  \u0026lt; 1.0 EU per μg of the protein as determined by the LAL method.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eCalculated MW\u003c\/b\u003e: 45.9 kDa\u003c\/p\u003e\u003cp\u003e\u003cb\u003eObservedMW\u003c\/b\u003e: 50 kDa\u003c\/p\u003e","brand":"GeneBio Systems","offers":[{"title":"Default Title","offer_id":47978813063268,"sku":"PKSH032169","price":437.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0558\/8588\/9636\/files\/no_image_default_image-jpeg_fe96fc97-8975-4f61-94e3-45a66ccd0091.jpg?v=1772291978","url":"https:\/\/www.genebiosystems.com\/en-us\/products\/recombinant-human-carboxypeptidase-a2-cpa2-protein-his-tag","provider":"GeneBio ","version":"1.0","type":"link"}