{"product_id":"recombinant-human-igg4-fc-224aa","title":"Recombinant Human IgG4 Fc (224AA)","description":"\u003cp\u003e\u003cb\u003eSize\u003c\/b\u003e:50ug\u003c\/p\u003e\u003cp\u003e\u003cb\u003eDescription\u003c\/b\u003e:Recombinant Human Ig Gamma-4 Chain C Region is produced by our Mammalian expression system and the target gene encoding Pro104-Lys327(Leu325Pro) is expressed.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eAccession\u003c\/b\u003e:P01861\u003c\/p\u003e\u003cp\u003e\u003cb\u003eMolecular weight\u003c\/b\u003e:25.1 KDa\u003c\/p\u003e\u003cp\u003e\u003cb\u003eApparent molecular weight\u003c\/b\u003e:30 KDa, reducing conditions\u003c\/p\u003e\u003cp\u003e\u003cb\u003eOther names\u003c\/b\u003e:Ig gamma-4 chain C region,IgG4 Fc\u003c\/p\u003e\u003cp\u003e\u003cb\u003eStorage condition\u003c\/b\u003e:Lyophilized protein should be stored at \u0026lt; -20°C, though stable at room temperature for 3 weeks. Reconstituted protein solution can be stored at 4-7°C for 2-7 days. Aliquots of reconstituted samples are stable at \u0026lt; -20°C for 3 months.\u003c\/p\u003e\u003cp\u003e\u003cb\u003ePurity\u003c\/b\u003e:Greater than 95% as determined by reducing SDS-PAGE.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eEndotoxin\u003c\/b\u003e:Less than 0.1 ng\/µg (1 EU\/µg) as determined by LAL test.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eBiological activity\u003c\/b\u003e:\u003c\/p\u003e\u003cp\u003e\u003cb\u003eRedissolve\u003c\/b\u003e:Always centrifuge tubes before opening.Do not mix by vortex or pipetting.\nIt is not recommended to reconstitute to a concentration less than 100μg\/ml.\nDissolve the lyophilized protein in distilled water.\nPlease aliquot the reconstituted solution to minimize freeze-thaw cycles. \u003c\/p\u003e\u003cp\u003e\u003cb\u003eStorage\u003c\/b\u003e:Lyophilized protein should be stored at \u0026lt; -20°C, though stable at room temperature for 3 weeks.\nReconstituted protein solution can be stored at 4-7°C for 2-7 days.\nAliquots of reconstituted samples are stable at \u0026lt; -20°C for 3 months.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eDelivery condition\u003c\/b\u003e:The product is shipped at ambient temperature.\nUpon receipt, store it immediately at the temperature listed below.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eBackground\u003c\/b\u003e:As a monomeric immunoglobulin that is predominately involved in the secondary antibody response and the only isotype that can pass through the human placenta, Immunoglobulin G (IgG) is synthesized and secreted by plasma B cells, and constitutes 75% of serum immunoglobulins in humans. IgG antibodies protect the body against the pathogens by agglutination and immobilization, complement activation, toxin neutralization, as well as the antibody-dependent cell-mediated cytotoxicity (ADCC). IgG tetramer contains two heavy chains (50 kDa ) and two light chains (25 kDa) linked by disulfide bonds, that is the two identical halves form the Y-like shape. IgG is digested by pepsin proteolysis into Fab fragment (antigen-binding fragment) and Fc fragment (\"crystallizable\" fragment). IgG1 is most abundant in serum among the four IgG subclasses (IgG1, 2, 3 and 4) and binds to Fc receptors (FcγR ) on phagocytic cells with high affinity. Fc fragment is demonstrated to mediate phagocytosis, trigger inflammation, and target Ig to particular tissues. Protein G or Protein A on the surface of certain Staphylococcal and Streptococcal strains specifically binds with the Fc region of IgGs, and has numerous applications in biotechnology as a reagent for affinity purification. Recombinant IgG Fc Region is suggested to represent a potential anti-inflammatory drug for treatment of human autoimmune diseases.\u003c\/p\u003e","brand":"GeneBio Systems","offers":[{"title":"Default Title","offer_id":48647912423524,"sku":"EPT285","price":313.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0558\/8588\/9636\/files\/no_image_default_image-jpeg_89f8f9a5-f980-46e6-9f84-a945ccd2a862.jpg?v=1782704744","url":"https:\/\/www.genebiosystems.com\/en-us\/products\/recombinant-human-igg4-fc-224aa","provider":"GeneBio ","version":"1.0","type":"link"}