{"product_id":"human-c1q-onestep-elisa-kit-s0c3227","title":"Human C1q OneStep ELISA Kit","description":"\u003ch4\u003eProduct Specification\u003c\/h4\u003e\u003cdiv class=\"responsive-table product-detail-table details-table\"\u003e\n\u003cbr\u003e\u003ctable style=\"width: 100%; height: auto;\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 22%;\"\u003e\u003cstrong\u003eAntigen\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 78%;\"\u003eC1q\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 22%;\"\u003e\u003cstrong\u003eImmunogen\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 78%;\"\u003eRecombinant Protein\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 22%;\"\u003e\u003cstrong\u003eAntibody Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 78%;\"\u003eRecombinant mAb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 22%;\"\u003e\u003cstrong\u003eReactivity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 78%;\"\u003eHu\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 22%;\"\u003e\u003cstrong\u003ePurification\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 78%;\"\u003eProtein A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 22%;\"\u003e\u003cstrong\u003eStability \u0026amp; Storage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 78%;\"\u003e\u003cp\u003e12 months from date of receipt \/ reconstitution, 2 to 8°C as supplied.\u003c\/p\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003c\/div\u003e\u003ch4\u003eKit\u003c\/h4\u003e\u003cdiv class=\"responsive-table product-detail-table details-table\"\u003e\n\u003cbr\u003e\u003ctable style=\"width: 100%; height: auto;\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 22%;\"\u003e\u003cstrong\u003ePrecision\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 78%;\"\u003eIntra-assay: 2.0%；\u003cbr\u003eInter-assay: 2.4%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 22%;\"\u003e\u003cstrong\u003eSample type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 78%;\"\u003eSerum; EDTA Plasma, Heparin Plasma, Citrate Plasma; Cell Culture Supernatant\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 22%;\"\u003e\u003cstrong\u003eAssay type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 78%;\"\u003eSandwich (quantitative)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 22%;\"\u003e\u003cstrong\u003eSensitivity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 78%;\"\u003e21.44 pg\/mL\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 22%;\"\u003e\u003cstrong\u003eRange\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 78%;\"\u003e78.1 pg\/mL – 5000 pg\/mL\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 22%;\"\u003e\u003cstrong\u003eRecovery\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 78%;\"\u003eHuman Serum: 89%\u003cbr\u003eHuman EDTA Plasma: 104%\u003cbr\u003eHuman Heparin plasma: 113%\u003cbr\u003eHuman Citrate Plasma: 117%\u003cbr\u003eCell Culture Supernatant (1640): 102%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 22%;\"\u003e\u003cstrong\u003eAssay time\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 78%;\"\u003e60 minutes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 22%;\"\u003e\u003cstrong\u003eSpecies reactivity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 78%;\"\u003eHu\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003c\/div\u003e\u003ch4\u003eBackground\u003c\/h4\u003e\u003cdiv\u003e\u003cp\u003e\u003cspan\u003eHuman C1q is a subunit of the C1 complex, which serves as the recognition molecule that initiates the classical complement pathway of the immune system. It is a hexameric protein comprising 18 polypeptide chains (six each of A, B, and C chains) that assemble into a bouquet-like structure with six globular heads connected by collagen-like stalks. These globular heads recognize and bind to a diverse array of ligands, including the Fc regions of immunoglobulin G (IgG) and immunoglobulin M (IgM) when they are bound to antigens, as well as pentraxins, apoptotic cells, and pathogen surfaces. Upon ligand binding, C1q undergoes a conformational change that activates the associated serine proteases C1r and C1s, triggering the downstream complement cascade. Beyond its classical role in innate immunity, C1q also functions as a key opsonin, promoting phagocytosis of apoptotic cells and immune complexes, thereby aiding in the clearance of cellular debris and maintenance of tissue homeostasis. Furthermore, C1q is involved in regulating synaptic pruning in the central nervous system and has been implicated in neurodevelopmental disorders. Consequently, C1q deficiency in humans is associated with an increased susceptibility to autoimmune diseases such as systemic lupus erythematosus (SLE), highlighting its critical role in bridging innate and adaptive immunity while preventing autoimmunity.\u003c\/span\u003e\u003c\/p\u003e\u003c\/div\u003e","brand":"Starter","offers":[{"title":"1x48T","offer_id":43131694481483,"sku":"S0C3227-1x48T","price":270.0,"currency_code":"USD","in_stock":true},{"title":"1x96T","offer_id":43131694514251,"sku":"S0C3227-1x96T","price":700.0,"currency_code":"USD","in_stock":true},{"title":"1x24T","offer_id":43131694547019,"sku":"S0C3227-1x24T","price":150.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0590\/8375\/1499\/files\/b118ac09c4f84fb08937df2a7d8388b3_6f6e21cd-0a07-49a8-b6ce-bbf092d87848.jpg?v=1788422406","url":"https:\/\/www.antbioinc.com\/products\/human-c1q-onestep-elisa-kit-s0c3227","provider":"AntBio","version":"1.0","type":"link"}