{"product_id":"recombinant-human-igj-immunoglobulin-j-chain-protein-his-tag-pksh030760","title":"Recombinant Human IGJ\/Immunoglobulin J Chain Protein (His Tag) - PKSH030760","description":"\u003cp\u003eRecombinant Human IGJ\/Immunoglobulin J Chain Protein (His Tag)\u003c\/p\u003e\n\n\u003cp\u003eSize: 100μg\u003c\/p\u003e\n\n\u003cp\u003eCatalogue Number: PKSH030760-100\u003c\/p\u003e\n\n\u003cp\u003eCitations, Manuals and MSDS Available upon request.\u003c\/p\u003e\n\n\u003cp\u003eAbbreviation: IGJ, Immunoglobulin J Chain\u003c\/p\u003e\n\n\u003cp\u003eTarget Synonym: IGCJ, JCH\u003c\/p\u003e\n\n\u003cp\u003eResearch Areas: immunology\u003c\/p\u003e\n\n\u003cp\u003eTarget Species: Human\u003c\/p\u003e\n\n\u003cp\u003eExpression Host: E.coli\u003c\/p\u003e\n\n\u003cp\u003eFusion Tag: C-His\u003c\/p\u003e\n\n\u003cp\u003eAccession: NP_653247.1\u003c\/p\u003e\n\n\u003cp\u003eBackground: Immunoglobulin J chain, also known as IGJ and IGCJ, is a secreted polypeptide which is the first immunoglobulin-related polypeptide expressed during the embryogenesis and differentiation of B cells in the fetal liver. The joining Immunoglobulin J chain is a small polypeptide, expressed by mucosal and glandular plasma cells, which regulates polymer formation of immunoglobulin (Ig)A and IgM. Immunoglobulin J chain \/ IGJ serves to link two monomer units of either IgM or IgA. In the case of IgM, the J chain-joined dimer is a nucleating unit for the IgM pentamer, and in the case of IgA it induces larger polymers. Immunoglobulin J chain \/ IGJ also help to bind these immunoglobulins to secretory component. J-chain incorporation into polymeric IgA (pIgA, mainly dimers) and pentameric IgM endows these antibodies with several salient features. Immunoglobulin J chain \/ IGJ is involved in creating the binding site for pIgR \/ SC in the Ig polymers, not only by determining the polymeric quaternary structure but apparently also by interacting directly with the receptor protein. Both the immunoglobulin J chain \/ IGJ and the pIgR\/SC are key proteins in secretory immunity.\u003c\/p\u003e\n\n\u003cp\u003eSequence: Gln 23-Asp 159\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 8.0\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: Please contact us for more information.\u003c\/p\u003e\n\n\u003cp\u003eCalculated MW: 17 kDa\u003c\/p\u003e\n\n\u003cp\u003eObserved MW: 26 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":"100μg","offer_id":43155026739379,"sku":"PKSH030760-100","price":635.6,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0305\/9482\/6376\/products\/logo_new_48df30ba-c455-4492-962b-12d513b3bea2.png?v=1710436803","url":"https:\/\/afsbio.com\/products\/recombinant-human-igj-immunoglobulin-j-chain-protein-his-tag-pksh030760","provider":"AFSBio Inc.","version":"1.0","type":"link"}