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Synonyms
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FGF-1, HBGF-1
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Species
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Murine
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Accession
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P61148
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GeneID
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14164
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Source
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重组鼠酸性成纤维细胞生长因子蛋白Escherichia coli.
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Molecular Weight
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Approximately 15.8 kDa, a single non-glycosylated polypeptide chain containing 140 amino acid residues.
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Quantity
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10µg/50µg/1000µg
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AA Sequence
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FNLPLGNYKK PKLLYCSNGG HFLRILPDGT VDGTRDRSDQ HIQLQLSAES AGEVYIKGTE TGQYLAMDTE GLLYGSQTPN EECLFLERLE ENHYNTYTSK KHAEKNWFVG LKKNGSCKRG PRTHYGQKAI LFLPLPVSSD
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Purity
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> 96 % by SDS-PAGE and HPLC analyses.
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Biological Activity
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重组鼠酸性成纤维细胞生长因子蛋白Fully biologically active when compared to standard. The ED50 as determined by a cell proliferation assay using murine balb/c 3T3 cells is less than 0.2 ng/ml, corresponding to a specific activity of > 5.0 × 106 IU/mg in the presence of 10 μg/ml of heparin.
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Physical Appearance
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Sterile Filtered White lyophilized (freeze-dried) powder.
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Formulation
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Lyophilized from a 0.2 µm filtered concentrated solution in PBS, pH 7.4.
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Endotoxin
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Less than 1 EU/μg of rMuaFGF as determined by LAL method.
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Reconstitution
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重组鼠酸性成纤维细胞生长因子蛋白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.
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Storage
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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.
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重组鼠酸性成纤维细胞生长因子蛋白
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SDS-PAGE
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Reference
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1. Armelin HA. 1973. Proc Natl Acad Sci U S A. 70:2702-6.
2. Gospodarowicz D. 1974. Nature. 249:123-7.
3. Zhang X, Ibrahimi OA, Olsen SK, et al. 2006. J Biol Chem. 281:15694-700.
4. Ornitz DM, Xu J, Colvin JS, et al. 1996. J Biol Chem. 271:15292-7.
5. Eswarakumar VP, Lax I, Schlessinger J. 2005. Cytokine Growth Factor Rev. 16:139-49.
6. Landriscina M, Bagala C, Mandinova A, et al. 2001. J Biol Chem. 276:25549-57.
7. Fernandez IS, Cuevas P, Angulo J, et al. 2010. J Biol Chem. 285:11714-29.
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Background
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Murine aFGF, encoded by the FGF1 gene, is a member of the fibroblast growth factor (FGF) family. Fibroblast growth factor was found in pituitary extracts in 1973 and then tested in a bioassay that caused fibroblasts to proliferate. After further fractionating the extract using acidic and basic pH, two different forms have isolated that named "acidic fibroblast growth factor" (FGF-1) and "basic fibroblast growth factor" (FGF-2). Murine aFGF shares 52 % amino acid sequence identity with bFGF. Murine aFGF shares 96 % amino acid sequence identity with human aFGF, so it exhibits considerable species crossreactivity between murine and human aFGF. In mammalian FGF receptor family has 4 members, FGFR1, FGFR2, FGFR3, and FGFR4, and 1, 2, 3 have 2 sub-types “b”, “c”. aFGF can bind and activate all 7 different FGFRs. Affinity between aFGF and its receptors can be increased by heparin or heparan sulfate proteoglycan. aFGF plays an important role in the regulation of cell survival, cell division, angiogenesis, cell differentiation and cell migration. aFGF are also involved in a variety of biological processes, including embryonic development , morphogenesis, tissue repair, tumor growth and invasion.
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