{"product_id":"recombinant-human-pappa2-pappalysin-2-protein-his-tag-pksh031546","title":"Recombinant Human PAPPA2\/Pappalysin 2 Protein (His Tag) - PKSH031546","description":"\u003cp\u003eRecombinant Human PAPPA2\/Pappalysin 2 Protein (His Tag)\u003c\/p\u003e\n\n\u003cp\u003eSize: 50μg\u003c\/p\u003e\n\n\u003cp\u003eCatalogue Number: PKSH031546-50\u003c\/p\u003e\n\n\u003cp\u003eCitations, Manuals and MSDS Available upon request.\u003c\/p\u003e\n\n\u003cp\u003eAbbreviation: PAPPA2, Pappalysin 2\u003c\/p\u003e\n\n\u003cp\u003eTarget Synonym: PAPP-A2, PAPP-E, PAPPE, PLAC3\u003c\/p\u003e\n\n\u003cp\u003eResearch Areas: Cell biology, Cardiovascular\u003c\/p\u003e\n\n\u003cp\u003eTarget Species: Human\u003c\/p\u003e\n\n\u003cp\u003eExpression Host: HEK293 Cells\u003c\/p\u003e\n\n\u003cp\u003eFusion Tag: C-His\u003c\/p\u003e\n\n\u003cp\u003eAccession: NP_064714.2\u003c\/p\u003e\n\n\u003cp\u003eBackground: Pappalysin-2\/PAPP-A2 is the second member of the pappalysin family of metzincin superfamily, of which PAPP-A is the first member. There is no homology between the prepro-peptides of PAPP-A and PAPP-A2, but 46% of the residues of mature PAPP-A are also present in mature PAPP-A2. PAPP-A specifically cleaves insulin-like growth factor-binding protein(IGFBP)-4, one of six known modulators of IGF-I and –II, whereas PAPP-A2 specifically cleaved IGFBP-5 at one site, between Ser-143 and Lys-144. In contrast to the cleavage of IGFBP-4 by PAPP-A that strictly requires the presence of IGF, the cleavage of IGFBP-5 by PAPP-A2 was IGF-independent. Recent data firmly establish PAPP-A and IGFBP-4 as an important functional pair in several systems. Because of its close relationship with PAPP-A, both structurally and functionally, PAPP-A2 is a likely candidate for IGFBP-5 proteinase in many tissues and conditioned media where IGFBP-5 proteolysis has been reported.\u003c\/p\u003e\n\n\u003cp\u003eSequence: Ser 234-Cys 1396\u003c\/p\u003e\n\n\u003cp\u003ePurity: \u0026gt; 90 % as determined by reducing SDS-PAGE.\u003c\/p\u003e\n\n\u003cp\u003eFormulation: Lyophilized from sterile PBS, pH 7.4, 5% Trehalose, 5% Mannitol, 0.01%, Tween-80\u003cbr\u003e\nNormally 5 % - 8 % trehalose, mannitol and 0.01% Tween80 are added as protectants before lyophilization.\u003cbr\u003e\nPlease refer to the specific buffer information in the printed manual.\u003c\/p\u003e\n\n\u003cp\u003eReconstitution: Please refer to the printed manual for detailed information.\u003c\/p\u003e\n\n\u003cp\u003eEndotoxin: \u0026lt; 1.0 EU per μg of the protein as determined by the LAL method.\u003c\/p\u003e\n\n\u003cp\u003eCalculated MW: 131 kDa\u003c\/p\u003e\n\n\u003cp\u003eObserved MW: 170-180 kDa\u003c\/p\u003e\n\n\u003cp\u003eStorage: 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\n\n\u003cp\u003eShipping: This product is provided as lyophilized powder which is shipped with ice packs.\u003c\/p\u003e\n\n\u003cp\u003eResearch Use Only\u003c\/p\u003e","brand":"Elabscience","offers":[{"title":"50μg","offer_id":43155038240947,"sku":"PKSH031546-50","price":1197.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0305\/9482\/6376\/products\/logo_new_cf0b5efd-1ed2-4358-9eda-891fbd95e670.png?v=1710437213","url":"https:\/\/afsbio.com\/products\/recombinant-human-pappa2-pappalysin-2-protein-his-tag-pksh031546","provider":"AFSBio Inc.","version":"1.0","type":"link"}