{"product_id":"igfbp-4-protein-human-ua040534","title":"IGFBP-4 Protein, Human","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\u003eSpecies\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 78%;\"\u003eHuman\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 22%;\"\u003e\u003cstrong\u003eSynonyms\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 78%;\"\u003eInsulin-like growth factor-binding protein 4, IBP-4, IGF-binding protein 4, IGFBP-4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 22%;\"\u003e\u003cstrong\u003eAccession\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 78%;\"\u003eP22692\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 22%;\"\u003e\u003cstrong\u003eAmino Acid Sequence\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 78%;\"\u003e\u003cp\u003eAsp22-Glu258 with His Tag at the C-Terminus\u003c\/p\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 22%;\"\u003e\u003cstrong\u003eExpression System\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 78%;\"\u003eHEK293\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 22%;\"\u003e\u003cstrong\u003eMolecular Weight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 78%;\"\u003e\u003cp style=\"margin-bottom: 0px;\"\u003e35-38 kDa (Reducing)\u003c\/p\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 22%;\"\u003e\u003cstrong\u003ePurity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 78%;\"\u003e\u0026gt;95% by SDS-PAGE \u0026amp; HPLC.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 22%;\"\u003e\u003cstrong\u003eEndotoxin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 78%;\"\u003e\u0026lt;0.1EU\/μg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 22%;\"\u003e\u003cstrong\u003eConjugation\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 78%;\"\u003eUnconjugated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 22%;\"\u003e\u003cstrong\u003eTag\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 78%;\"\u003eHis Tag\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 22%;\"\u003e\u003cstrong\u003ePhysical Appearance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 78%;\"\u003eLyophilized powder\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 22%;\"\u003e\u003cstrong\u003eStorage Buffer\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 78%;\"\u003e\u003cp\u003ePBS, 1mM EDTA, pH7.4\u003c\/p\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 22%;\"\u003e\u003cstrong\u003eReconstitution\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 78%;\"\u003e\u003cp style=\"margin-bottom: 0px;\"\u003eReconstitute at 0.1-1 mg\/ml according to the size in ultrapure water after rapid centrifugation.\u003c\/p\u003e\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\u003e·12 months from date of receipt, lyophilized powder stored at -20 to -80℃.\u003cbr\u003e·3 months, -20 to -80℃ under sterile conditions after reconstitution.\u003cbr\u003e·1 week, 2 to 8℃ under sterile conditions after reconstitution.\u003cbr\u003e·Please avoid repeated freeze-thaw cycles.\u003c\/p\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 22%;\"\u003e\u003cstrong\u003eReference\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 78%;\"\u003e\u003cp\u003eJ Clin Invest. 2008 Jul;118(7):2609-19.\u003cbr\u003eCirc Res. 2000 Feb 4;86(2):125-30.\u003c\/p\u003e\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\u003eInsulin-like Growth Factor Binding Protein-4 (IGFBP-4) is the smallest member of the IGFBP family, with a molecular weight of approximately 24 kDa, encoded by the IGFBP4 gene located on human chromosome 17q12-21.1. The protein consists of 237 amino acids and contains the conserved N-terminal, C-terminal, and variable L-domains characteristic of the IGFBP family, including two additional interconnected cysteine residues in the L-domain. IGFBP-4 binds both IGF-I and IGF-II with high affinity, exhibiting 2–10 fold higher affinity for IGF-II than for IGF-I. This binding prolongs IGF half-life and inhibits ligand-receptor interactions, thereby attenuating IGF-mediated proliferation and differentiation in most physiological contexts.\u003c\/span\u003e\u003c\/p\u003e\u003c\/div\u003e","brand":"UA BIOSCIENCE","offers":[{"title":"10μg","offer_id":42332765913163,"sku":null,"price":120.0,"currency_code":"USD","in_stock":true},{"title":"50μg","offer_id":42332765945931,"sku":null,"price":305.0,"currency_code":"USD","in_stock":true},{"title":"100μg","offer_id":42332765978699,"sku":null,"price":490.0,"currency_code":"USD","in_stock":true},{"title":"500μg","offer_id":42332766011467,"sku":null,"price":1460.0,"currency_code":"USD","in_stock":true},{"title":"1mg","offer_id":42332766044235,"sku":null,"price":2170.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0590\/8375\/1499\/files\/AntBioImage_be3b47d0-9dee-4a16-a4de-bca5004764da.png?v=1776073722","url":"https:\/\/www.antbioinc.com\/products\/igfbp-4-protein-human-ua040534","provider":"AntBio","version":"1.0","type":"link"}