Rat Epidermal Growth Factor (rRtEGF )

• Catalog Number: orb1495058
• Category: Proteins
• Description: EGF is a potent growth factor that stimulates the proliferation of various epidermal and epithelial cells. Additionally, EGF has been shown to inhibit gastric secretion, and to be involved in wound healing. EGF signals through a receptor known as c-erbB, which is a class I tyrosine kinase receptor. This receptor also binds with TGF-α and VGF (vaccinia virus growth factor).
• Form/Appearance: Sterile Filtered White lyophilized (freeze-dried) powder.
• MW: 6.2 kDa, a single non-glycosylated polypeptide chain containing 54 amino acids, including 3 intramolecular disulfide-bonds.
• Protein Sequence: MNSNTGCPPS YDGYCLNGGV CMYVESVDRY VCNCVIGYIG ERCQHRDLRW WKLR
• Source: Escherichia coli.
• Biological Activity: Fully biologically active when compared to standard. The ED50 was determined by a cell proliferation assay using BALB/c 3T3 cells is 1 x 107 units/mg.
• Endotoxins: Less than 1EU/mg of rRtEGF as determined by LAL method.
• Storage: This lyophilized preparation is stable at 2-8°C, but should be kept at -20°C for long term storage, preferably desiccated. Upon reconstitution, the preparation is stable for up to one week at 2-8°C. For maximal stability, apportion the reconstituted preparation into working aliquots and store at -20°C to -70°C. Avoid repeated freeze/thaw cycles.
• Buffer/Preservatives: Lyophilized from a 0.2mm filtered solution in PBS, pH 7.4.
• Note: For research use only
• Application notes: We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Reconstitute in sterile distilled water or aqueous buffer containing 0.1% BSA to a concentration of 0.1-1.0 mg/mL. Stock solutions should be apportioned into working aliquots and stored at < -20°C. Further dilutions should be made in appropriate buffered solutions.
• Expiration Date: 6 months from date of receipt.