{"product_id":"bek1090","title":"Human IGFBP-3 ELISA Kit","description":"\u003cstrong\u003eApplication:\u003c\/strong\u003e For quantitative detection of IGFBP-3 in human serum, plasma, body fluids, tissue lysates or cell culture supernatants.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eIntroduction:\u003c\/strong\u003e Insulin-like growth factor-binding protein 3, also known as IGFBP3, is a member of the insulin-like growth factor-binding protein (IGFBP) family. This protein has an IGFBP domain and a thyroglobulin type-I domain. It forms a ternary complex with insulin-like growth factor acid-labile subunit (IGFALS) and either insulin-like growth factor (IGF) I or II. It plays a role in controlling angiogenesis and cell responses in the human corpus luteum by autocrine\/paracrine mechanisms. IGFBP3 protein levels decrease during the progression of prostate cancer from benign prostatic hyperplasia (BPH) to its metastatic form.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003ePrinciple of the Assay:\u003c\/strong\u003e This kit was based on sandwich enzyme-linked immune-sorbent assay technology. Anti-IGFBP-3 polyclonal antibody was pre-coated onto 96-well plates. And the biotin conjugated anti-IGFBP-3 polyclonal antibody was used as detection antibodies. The standards, test samples and biotin conjugated detection antibody were added to the wells subsequently, and wash with wash buffer. Avidin-Biotin-Peroxidase Complex was added and unbound conjugates were washedaway with wash buffer. TMB substrates were used to visualize HRP enzymatic reaction. TMB was catalyzed by HRP to produce a blue color product that changed into yellow after adding acidic stop solution. The density of yellow is proportional to the IGFBP-3 amount of sample captured in plate. Read the O.D. absorbance at 450nm in a microplate reader, and then the concentration of IGFBP-3 can be calculated.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eStorage and Expiration:\u003c\/strong\u003e Store at 2-8℃ for 6 months, or at -20℃ for 12 months.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eRange:\u003c\/strong\u003e 156 pg\/ml - 10,000 pg\/ml\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eSensitivity:\u003c\/strong\u003e \u0026lt; 10 pg\/ml","brand":"Biospes","offers":[{"title":"96T","offer_id":50409021505816,"sku":"BEK1090","price":500.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0590\/5652\/1400\/files\/Biospes-logo_c3d4a109-cd0f-4f80-8f54-54062963a885.jpg?v=1750988421","url":"https:\/\/danabiosci.com\/products\/bek1090","provider":"Dana Bioscience","version":"1.0","type":"link"}