Recombinant Human FGF-2/FGF basic/FGFb Protein (aa 1-155, Lus128Asn)
SKU: PKSH033503-50
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Recombinant Human FGF-2/FGF basic/FGFb Protein (aa 1-155, Lus128Asn)
SKU # | PKSH033503 |
Expression Host | E.coli |
Description
Synonyms | Basic fibroblast growth factor, FGF-2, FGF2, FGFB, Fibroblast growth factor 2, HBGF-2, Heparin-binding growth factor 2, bFGF |
Species | Human |
Expression Host | E.coli |
Sequence | Met1-Ser155 |
Accession | BAG70135.1 |
Calculated Molecular Weight | 17.2 kDa |
Observed Molecular Weight | 17 kDa |
Tag | None |
Bio-activity | Not validated for activity |
Properties
Purity | > 95 % as determined by reducing SDS-PAGE. |
Endotoxin | < 1.0 EU per μg of the protein as determined by the LAL method. |
Storage | Store at < -20°C, stable for 6 months. Please minimize freeze-thaw cycles. |
Shipping | This product is provided as liquid. It is shipped at frozen temperature with blue ice/gel packs. Upon receipt, store it immediately at < - 20°C. |
Formulation | Supplied as a 0.2 μm filtered solution of 20mM Tris-HCl, 200mM NaCl, pH 7.5. |
Reconstitution | Not Applicable |
Background
Fibroblast growth factors (FGF) are a family of heparin-binding secreted proteins that stimulate cell proliferation and differentiation in a wide variety of tissues. FGFs play important roles in diverse biological functions both in vivo and in vitro; including mitogenesis; cellular migration; differentiation; angiogenesis; and wound healing. Human embryonic stem cell (hESC) cultures require FGF basic (also known as FGF-2 or bFGF) in cell culture media to remain in an undifferentiated and pluripotent state. Thermostable FGF basic was engineered for enhanced stability in culture media; without modification of its biological function. FGF basic is a required component of stem cell culture media for maintaining cells in an undifferentiated state. Because FGF basic is unstable; daily media changes are needed. The thermostable FGF basic that supports a 2-day media change schedule; so no media changes are required over a weekend. This thermostable FGF basic was more stable than FGF basic in biochemical studies; and maintained cell growth; pluripotency and differentiation potential with a 2-day feeding schedule.