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CYT-415

重組人成纖維細胞生長因子-9（rHuFGF-9）

10μg/50μg/1mg

Prospec

Description :
	Recombinant Human FGF-9 produced in Sf9 insect cells is a single, glycosylated, polypeptide chain containing 208 amino acids and having a molecular mass of 23 kDa. Recombinant FGF-9 is purified by proprietary chromatographic techniques. The human FGF-9 cDNA encodes a 208 amino acid residue protein that contains a single, potential N-linked glycosylation site. The native protein is glycosylated and is efficiently secreted after synthesis, although FGF -9 lacks a typical secretion signal. Rat and mouse FGF-9 show a very high homology to human FGF-9. The transcripts for FGF-9 have been found in brain and in kidney tissue.
	Physical Appearance:
	Sterile Filtered white lyophilized powder.
	Formulation:
	The sterile protein powder is lyophilized with no additives.
	Solubility:
	It is recommended to reconstitute the lyophilized Recombinant FGF-9 sterile 18MΩ-cm H₂O not less than 100µg/ml, which can then be further diluted to other aqueous solutions.
	Stability:
	Lyophilized Human FGF-9 although stable at room temperature for 3 weeks, should be stored desiccated below -18⁰C. Upon reconstitution Recombinant Human FGF-9 should be stored at 4⁰C between 2-7 days and for future use below -18⁰C. For long term storage it is recommended to add a carrier protein （0.1% HSA or BSA）. Please avoid freeze-thaw cycles.
	Purity:
	Greater than 95.0% as determined by: （a） Analysis by RP-HPLC. （b） Anion-exchange FPLC. （c） Analysis by reducing and non-reducing SDS-PAGE Silver Stained gel.
	Amino acid sequence:
	The sequence of the first five N-terminal amino acids was determined and was found to be Met-Ala-Pro-Leu-Gly.
	Dimers and aggregates:
	Less than 1% as determined by silver-stained SDS-PAGE gel analysis.
	Biological Activity:
	ProSpec’s Recombinant FGF-9 is fully biologically active when compared to standards. The ED50, calculated by the dose-dependant proliferation of BAF3 cells expressing FGF receptors （measured by ³H-thymidine uptake） is <0.5 ng/ml, corresponding to a specific activity of 5.5 x 10⁶ Units/mg.
	Endotoxin:
	Less than 0.1 ng/µg （IEU/µg） of Recombinant Human Fibroblast Growth Factor-9.
	Protein content:
	Protein quantitation was carried out by two independent methods: 1. UV spectroscopy at 280 nm using the absorbency value of 0.8 as the extinction coefficient for a 0.1% （1mg/ml） solution. This value is calculated by the PC GENE computer analysis program of protein sequences （InliGenetics）. 2. Analysis by RP-HPLC, using a calibrated solution of FGF-9 as a Reference Standard.
	Usage:
	Prospec's products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals.