{"product_id":"culturegro-human-scf-animal-free-recombinant-protein","title":"CultureGro™ Human SCF Animal Free Recombinant Protein","description":"\u003cp\u003eCultureGro™ Human SCF (Stem Cell Factor) is a high-purity, biologically active recombinant cytokine designed to support hematopoietic cell culture and stem cell expansion. Also known as c-Kit ligand, SCF plays a critical role in hematopoiesis by promoting the proliferation, survival, and differentiation of hematopoietic stem and progenitor cells (HSPCs). It acts synergistically with other key growth factors, such as IL-3, IL-6, and EPO, to support the robust expansion of multiple cell lineages, including myeloid, erythroid, and lymphoid progenitors.\u003c\/p\u003e\n\n\u003cp\u003eThis animal-free recombinant protein is produced in an E. coli expression system and supplied as a high-purity lyophilized powder with a molecular weight of 18.4 kDa. Purified to ≥98% as determined by SDS-PAGE and HPLC analyses, it features an exceptionally low endotoxin concentration of \u0026lt;0.1 EU\/μg to prevent unwanted cell activation and ensure consistency in sensitive culture systems. Its rigorous quality control ensures a dependable foundation for scaling R\u0026amp;D processes into pilot and production environments.\u003c\/p\u003e\n\n\u003cp\u003eThe biological activity of this protein is verified by an ED₅₀ of ≤2.0 ng\/mL, measured via the dose-dependent proliferation of human TF-1 cells, which corresponds to a specific activity of ≥5 x 10⁵ units\/mg. The lyophilized product is stable for up to one year when stored at -20°C. For optimal performance, reconstitute in sterile water or PBS to a concentration of at least 100 μg\/mL, and store aliquots at -20°C, avoiding repeated freeze-thaw cycles.\u003c\/p\u003e","brand":"Cell Culture Collective","offers":[{"title":"1 mg","offer_id":53171307479368,"sku":"HSCF-AF-1mg","price":0.0,"currency_code":"GBP","in_stock":false},{"title":"2 µg","offer_id":53171351683400,"sku":"HSCF-AF-2ug","price":0.0,"currency_code":"GBP","in_stock":false},{"title":"10 µg","offer_id":53171351716168,"sku":"HSCF-AF-10ug","price":0.0,"currency_code":"GBP","in_stock":false},{"title":"50 µg","offer_id":53171351748936,"sku":"HSCF-AF-50ug","price":0.0,"currency_code":"GBP","in_stock":false},{"title":"100 µg","offer_id":53171351781704,"sku":"HSCF-AF-100ug","price":0.0,"currency_code":"GBP","in_stock":false},{"title":"250 µg","offer_id":53171351814472,"sku":"HSCF-AF-250ug","price":0.0,"currency_code":"GBP","in_stock":false},{"title":"500 µg","offer_id":53171351847240,"sku":"HSCF-AF-500ug","price":0.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0906\/7570\/8232\/files\/Growth-Factor-Photo_4b3ee0d3-e53d-4bcd-ade1-5c4ec3cd90d6.png?v=1779694854","url":"https:\/\/cellbase.com\/es\/products\/culturegro-human-scf-animal-free-recombinant-protein","provider":"Cellbase","version":"1.0","type":"link"}