{"product_id":"recombinant-human-fibroblast-growth-factor-4-fgf4-active-bhp10514574","title":"Recombinant Human Fibroblast growth factor 4 (FGF4) (Active)","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\u003cp\u003eRecombinant Human Fibroblast growth factor 4 (FGF4) (Active) is a recombinant protein preparation derived from Homo sapiens (Human). It is commonly used as a defined reagent for assay development, binding studies, and analytical controls where consistent protein specifications are required.\u003c\/p\u003e\u003ch2\u003eKey elements and design rationale\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eExpressed region:\u003c\/strong\u003e 31-206aa.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExpression system:\u003c\/strong\u003e Mammalian cell (may influence folding and post-translational modifications).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTag\/format:\u003c\/strong\u003e Tag free; Lyophilized powder.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExpected size:\u003c\/strong\u003e 19.3 kDa (as provided).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePurity:\u003c\/strong\u003e Greater than 95% as determined by SDS-PAGE.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eRegion choice, expression system, and tag\/format can influence folding, post-translational modifications, and interaction behavior in downstream assays.\u003c\/p\u003e\u003ch2\u003eBiological background\u003c\/h2\u003e\u003cp\u003eFGF-4 is studied in diverse biological contexts. Recombinant forms are often used to interrogate binding interactions, structure–function relationships, and quantitative assay performance.\u003c\/p\u003e\u003ch2\u003eResearch relevance and current trends\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eDomain- and isoform-aware assay design to improve biological interpretation across model systems.\u003c\/li\u003e\n\u003cli\u003eQuantitative workflows emphasizing calibration standards, spike-in controls, and cross-lot comparability.\u003c\/li\u003e\n\u003cli\u003eIn vitro binding\/kinetics profiling (SPR\/BLI) to connect biochemical interactions with cellular phenotypes.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eCommon research applications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eStimulate cultured cells with FGF-4 (dose–response + time-course) and collect lysates.\u003c\/li\u003e\n\u003cli\u003eMeasure downstream markers after FGF-4 treatment (WB\/qPCR\/ELISA readouts).\u003c\/li\u003e\n\u003cli\u003eQuantify FGF-4 using standard curves in plate-based assays (assay development).\u003c\/li\u003e\n\u003cli\u003eRun receptor binding kinetics for FGF-4 by SPR\/BLI (in vitro profiling).\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eInterpret results in the context of the biological system, assay format, and any known domain\/isoform constraints for the target.\u003c\/p\u003e\u003ch2\u003eNotes for experimental interpretation\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eConsider species- and isoform-specific differences when comparing results across models or homologs.\u003c\/li\u003e\n\u003cli\u003eFor quantitative assays, include appropriate negative controls and matrix-matched spike-in concepts to assess non-specific signal.\u003c\/li\u003e\n\u003c\/ul\u003e\u003c!-- Sources (internal): - UniProtKB entry (P08620) — UniProt: https:\/\/www.uniprot.org\/uniprotkb\/P08620 - NCBI Gene search (FGF-4) — NCBI: https:\/\/www.ncbi.nlm.nih.gov\/gene\/?term=FGF-4 - PubMed search — NLM: https:\/\/pubmed.ncbi.nlm.nih.gov\/?term=FGF-4 - Reactome pathway browser — Reactome: https:\/\/reactome.org\/ - InterPro protein family resource — EMBL-EBI: https:\/\/www.ebi.ac.uk\/interpro\/ --\u003e","brand":"CUSABIO TECHONOLOGY LLC","offers":[{"title":"1 mg","offer_id":53059263103341,"sku":"CSB-MP008631HU-WD-1MG","price":1800.0,"currency_code":"USD","in_stock":true},{"title":"50 ug","offer_id":53059368845677,"sku":"CSB-MP008631HU-WD-50UG","price":360.0,"currency_code":"USD","in_stock":true},{"title":"10 ug","offer_id":53059368878445,"sku":"CSB-MP008631HU-WD-10UG","price":0.0,"currency_code":"USD","in_stock":true}],"url":"https:\/\/www.ebiohippo.com\/products\/recombinant-human-fibroblast-growth-factor-4-fgf4-active-bhp10514574","provider":"BioHippo","version":"1.0","type":"link"}