{"product_id":"mouse-il-4-protein-his-tag-animal-free-bhp13700249","title":"Mouse IL-4 Protein, His tag (Animal-Free)","description":"\u003ch2\u003eBackground\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eIL-4\u003c\/strong\u003e is supplied as a recombinant protein reagent for \u003cstrong\u003eresearch use only\u003c\/strong\u003e. In RUO settings, recombinant proteins provide defined inputs for biochemical assays, interaction mapping, and assay development where control over protein identity and concentration supports reproducibility.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eAlso known as:\u003c\/strong\u003e BCGF, BCDF, B-cell Stimulating Factor (BSF-1).\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSpecies origin:\u003c\/strong\u003e Human.\u003c\/p\u003e\u003cp\u003eInterleukin-4 (IL-4) is a key cytokine produced by activated T cells, mast cells, basophils, neutrophils and eosinophils. IL-4 is critical for the development of Th2-mediated responses, which is related to allergy and asthma. It can also regulate B cell responses, including survival, cell proliferation and gene expression. IL-4 also plays fundamental role for B-cell stimulation, including induction of the IgE isotype switch.\u003c\/p\u003e\u003cp\u003eEndotoxin:\u0026lt;0.1 EU per 1 μg of the protein by the LAL method.\u003c\/p\u003e\u003ch2\u003eBiological significance and function\u003c\/h2\u003e\u003cp\u003eFunctionally, \u003cstrong\u003eIL-4\u003c\/strong\u003e mediates intercellular communication in immune and stress-response settings through receptor engagement and downstream transcriptional programs. Experimental systems often use defined protein inputs to disentangle receptor proximal signaling from later transcriptional responses. This target is frequently investigated in research themes such as \u003cstrong\u003eImmunology \u0026amp; Inflammation\u003c\/strong\u003e.\u003c\/p\u003e\u003ch2\u003eMolecular characteristics\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eMolecular characteristics:\u003c\/strong\u003e Protein domains, oligomeric state, and modification-sensitive surfaces can influence binding behavior and functional readouts in vitro. Where relevant, isoforms and PTMs may alter activity, stability, or interaction specificity.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSource species:\u003c\/strong\u003e Human\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMolecular weight:\u003c\/strong\u003e The protein has a calculated MW of 14.5 kDa.The protein migrates as 14 kDa under reducing condition (SDS-PAGE analysis).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProtein length:\u003c\/strong\u003e The recombinant Mouse IL-4consists of 121 amino acids and predicts a molecular mass of 13.7 kDa\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExpression region:\u003c\/strong\u003e Amino acid sequence derived from Mouse IL-4 (His23-Ser140)(P07750) was expressed with 6×His tag at the C-terminus\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePurity:\u003c\/strong\u003e \u0026gt;98% as determined by SDS-PAGE.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBiological activity:\u003c\/strong\u003e Measure by its ability to induce HT-2 cells proliferation.The ED₅₀ for this effect is \u0026lt;1 ng\/mL.The specific activity of recombinant mouse IL-4 is approximately \u0026gt;1 x 10⁶ IU\/mg.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003ePost-translational considerations:\u003c\/strong\u003e E. coli expression typically yields a non-glycosylated recombinant form. This is often suitable for many intracellular enzymes and binding studies, while PTM-dependent targets may show differences when glycosylation or specific disulfide-bond patterns are required. For many extracellular signaling proteins and proteases, disulfide bonding and glycosylation can be important for stability and activity.\u003c\/p\u003e\u003ch2\u003eExpression and purification strategy\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eExpression system:\u003c\/strong\u003e E. coli. Expression system selection can influence folding state and PTM profile, which may affect binding or activity for PTM-sensitive targets.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eTagging:\u003c\/strong\u003e His tag tags are commonly used to streamline purification and enable capture\/immobilization in interaction assays. Tag presence or removal can influence some binding measurements depending on assay design.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFormulation:\u003c\/strong\u003e The protein was lyophilized from a 0.2 µm filtered solution containing 1X PBS, pH 7.4. Formulation and buffer composition can influence stability, aggregation propensity, and assay background in downstream biochemical experiments.\u003c\/p\u003e\u003ch2\u003eResearch interpretation\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eResearch interpretation:\u003c\/strong\u003e Cytokine-driven outcomes depend on receptor availability, timing, and crosstalk with stress and metabolic pathways. Defined protein inputs help disentangle receptor-proximal signaling from downstream transcriptional and phenotypic responses.\u003c\/p\u003e","brand":"Abbkine Scientific Co., Ltd.","offers":[{"title":"5 ug","offer_id":52997753962861,"sku":"PRP1137-5UG","price":89.0,"currency_code":"USD","in_stock":true},{"title":"20 ug","offer_id":52997753995629,"sku":"PRP1137-20UG","price":199.0,"currency_code":"USD","in_stock":true},{"title":"100 ug","offer_id":52997754028397,"sku":"PRP1137-100UG","price":669.0,"currency_code":"USD","in_stock":true},{"title":"1 mg","offer_id":52997754061165,"sku":"PRP1137-1MG","price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7424\/7277\/files\/PRP1137.png?v=1770191232","url":"https:\/\/www.ebiohippo.com\/products\/mouse-il-4-protein-his-tag-animal-free-bhp13700249","provider":"BioHippo","version":"1.0","type":"link"}