{"product_id":"recombinant-lentinula-edodes-serine-protease-inhibitor-bhp10506407","title":"Recombinant Lentinula edodes Serine protease inhibitor","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\u003cp\u003eThis Recombinant Protein provides recombinant \u003cstrong\u003eLeSI\u003c\/strong\u003e from Lentinula edodes (Shiitake mushroom) (Lentinus edodes), produced in E.coli (region 1-142aa). It is commonly used as a defined reagent for assay development, binding studies, and mechanistic research (RUO).\u003c\/p\u003e\u003ch2\u003eKey elements and design rationale\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eRegion:\u003c\/strong\u003e 1-142aa (domain boundaries can affect binding\/activity readouts).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExpression host:\u003c\/strong\u003e E.coli (may differ from native PTMs\/processing).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTag(s):\u003c\/strong\u003e His (supports purification\/detection; consider tag effects in controls).\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eBiological background\u003c\/h2\u003e\u003cp\u003eAlso reported as Serine protease inhibitor. Serine protease inhibitor. Active against beta-trypsin and alpha-chymotrypsin with dissociation constants of 0.35 nM and 40 nM respectively. Inhibits factor XIa, but not other enzymes involved in coagulation and fibrinolysis. Does not inhibit subtilisin, lysyl endopeptidase, arginyl endopeptidase or papain.\u003c\/p\u003e\u003ch2\u003eResearch relevance and current trends\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eActivity assay development for kinetics, substrate scope, and inhibitor\/activator profiling.\u003c\/li\u003e\n\u003cli\u003eUse of recombinant standards to improve assay calibration and cross-study comparability.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eSerine protease inhibitor. Active against beta-trypsin and alpha-chymotrypsin with dissociation constants of 0.35 nM and 40 nM respectively. Inhibits factor XIa, but not other enzymes involved in coagulation and fibrinolysis. Does not inhibit subtilisin, lysyl endopeptidase, arginyl endopeptidase or papain.\u003c\/p\u003e\u003ch2\u003eCommon research applications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eStandard curve or spike-in reference for quantitative assays involving LeSI\u003c\/li\u003e\n\u003cli\u003eEnzymatic activity measurements with defined substrates\/cofactors (assay-dependent)\u003c\/li\u003e\n\u003cli\u003eCompound screening using concentration–response concepts (assay-dependent)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eNotes for experimental interpretation\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eRecombinant constructs may not capture all native isoforms or PTMs.\u003c\/li\u003e\n\u003cli\u003eConsider tag- or host-related effects when interpreting binding or activity.\u003c\/li\u003e\n\u003cli\u003eUse appropriate blanks and matrix\/control concepts to separate signal from background.\u003c\/li\u003e\n\u003c\/ul\u003e\u003c!-- Sources (internal): - UniProtKB P81639 — UniProt — https:\/\/www.uniprot.org\/uniprotkb\/P81639 - NCBI Gene search: LeSI — NCBI — https:\/\/www.ncbi.nlm.nih.gov\/gene\/?term=LeSI - Ensembl search: LeSI — Ensembl — https:\/\/www.ensembl.org\/Multi\/Search\/Results?q=LeSI - Reactome Pathway Browser — Reactome — https:\/\/reactome.org\/ - NCBI Bookshelf — NCBI — https:\/\/www.ncbi.nlm.nih.gov\/books\/ --\u003e","brand":"CUSABIO TECHNOLOGY LLC","offers":[{"title":"1 mg","offer_id":53053383213421,"sku":"CSB-EP305524LDV-1MG","price":2466.0,"currency_code":"USD","in_stock":true},{"title":"100 ug","offer_id":53053488464237,"sku":"CSB-EP305524LDV-100UG","price":729.0,"currency_code":"USD","in_stock":true},{"title":"20 ug","offer_id":53053488497005,"sku":"CSB-EP305524LDV-20UG","price":388.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7424\/7277\/files\/CSB-EP305524LDV-1.jpg?v=1772177565","url":"https:\/\/www.ebiohippo.com\/products\/recombinant-lentinula-edodes-serine-protease-inhibitor-bhp10506407","provider":"BioHippo","version":"1.0","type":"link"}