{"product_id":"recombinant-human-smad3-protein-n-his-bhp21407904","title":"Recombinant Human SMAD3 Protein, N-His","description":"\u003ch2\u003eBackground\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eTarget identity:\u003c\/strong\u003e\u003cstrong\u003eSMAD3\u003c\/strong\u003e is a transcription factor \/ DNA-binding regulator. It is typically nuclear (often regulated by signaling-dependent translocation).\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSMAD3\u003c\/strong\u003e is provided as a recombinant protein reagent for \u003cstrong\u003eresearch use only\u003c\/strong\u003e. Recombinant proteins are commonly used as defined molecular inputs in biochemical and cell-free systems, enabling controlled interrogation of binding, activity, and pathway-relevant interactions.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eProtein identity context:\u003c\/strong\u003e SMAD3 (expression region Asp220-Ser425; approx. molecular weight 25.52 kDa).\u003c\/p\u003e\u003ch2\u003eBiological significance and function\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eSMAD3\u003c\/strong\u003e integrates upstream signaling into gene-expression programs that reshape cellular state. Regulation often involves localization, interaction partners, and modification-dependent control of DNA binding and cofactor recruitment. This target is frequently explored in \u003cstrong\u003eMolecular \u0026amp; Cellular Biology\u003c\/strong\u003e research contexts.\u003c\/p\u003e\u003ch2\u003eMolecular characteristics\u003c\/h2\u003e\u003cp\u003eKey molecular attributes can influence binding behavior, stability, and assay background—especially for multimeric, disulfide-rich, or PTM-dependent targets.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eExpression system:\u003c\/strong\u003e E. coli\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExpression region:\u003c\/strong\u003e Asp220-Ser425\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMolecular weight:\u003c\/strong\u003e 25.52 kDa\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePurity:\u003c\/strong\u003e \u0026gt;90%\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eForm:\u003c\/strong\u003e Lyophilized\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFormulation:\u003c\/strong\u003e Lyophilized from a solution in PBS pH 7.4, 0.02% NLS, 1 mM EDTA, 4% Trehalose, 1% Mannitol.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003ePost-translational considerations:\u003c\/strong\u003e Prokaryotic expression typically yields a non-glycosylated recombinant form. This is often appropriate for many intracellular proteins and binding studies, while disulfide-rich or PTM-dependent extracellular targets may behave differently when native PTMs are required.\u003c\/p\u003e\u003ch2\u003eExpression and purification strategy\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eExpression system:\u003c\/strong\u003e E. coli. Expression host selection can influence folding and PTM state, which may affect activity or binding in different assay formats.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003ePurification:\u003c\/strong\u003e Affinity-chromatography. Purification approach and formulation influence sample homogeneity and background signal in downstream biochemical measurements.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eEndotoxin consideration:\u003c\/strong\u003e Reported endotoxin level is Please contact with the lab for this information.; this parameter can matter when recombinant proteins are used in cell-based systems sensitive to innate immune activation.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eReconstitution:\u003c\/strong\u003e Reconstitute in sterile water for a stock solution. A copy of datasheet will be provided with the products, please refer to it for details..\u003c\/p\u003e\u003ch2\u003eResearch interpretation\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eResearch interpretation:\u003c\/strong\u003e For many transcription factors, functional state is controlled by localization, binding partners, and modifications rather than total abundance alone. Combining nuclear localization proxies with downstream target-gene signatures can help interpret activity.\u003c\/p\u003e","brand":"Biohippo Inc","offers":[{"title":"100 ug","offer_id":53001538568557,"sku":"HX888012-100UG","price":311.0,"currency_code":"USD","in_stock":true},{"title":"1 mg","offer_id":53001538601325,"sku":"HX888012-1MG","price":1627.0,"currency_code":"USD","in_stock":true}],"url":"https:\/\/www.ebiohippo.com\/products\/recombinant-human-smad3-protein-n-his-bhp21407904","provider":"BioHippo","version":"1.0","type":"link"}