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Synonyms
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Glioma-derived Growth Factor, GDGF, Osteosarcoma-derived Growth Factor, ODGF, PDGF-2, Platelet-derived Growth Factor Beta Polypeptide, Becaplermin
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Species
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Human
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Accession
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P01127
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GeneID
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5155
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Source
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重组人血小板源生长Factor-BB蛋白Escherichia coli.
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Molecular Weight
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Approximately 24.8 kDa, a disulfide-linked homodimeric protein containing two 110 amino acid residues polypeptide (B chain).
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Quantity
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2µg/10µg/1000µg
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AA Sequence
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MSLGSLTIAE PAMIAECKTR TEVFEISRRL IDRTNANFLV WPPCVEVQRC SGCCNNRNVQ CRPTQVQLRP VQVRKIEIVR KKPIFKKATV TLEDHLACKC ETVAAARPVT
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Purity
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> 97 % by SDS-PAGE and HPLC analyses.
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Biological Activity
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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 3 ng/ml, corresponding to a specific activity of > 3.3 × 105 IU/mg.
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Physical Appearance
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重组人血小板源生长Factor-BB蛋白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 rHuPDGF-BB as determined by LAL method.
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Reconstitution
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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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重组人血小板源生长Factor-BB蛋白
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SDS-PAGE
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Reference
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1. Hart CE, Bailey M, Curtis DA, et al. 1990. Biochemistry, 29: 166-72.
2. Heidaran MA, Yu JC, Jensen RA, et al. 1992. J Biol Chem, 267: 2884-7.
3. Haber M, Cao Z, Panjwani N, et al. 2003. Vet Ophthalmol, 6: 211-7.
4. Matei D, Kelich S, Cao L, et al. 2007. Cancer Biol Ther, 6: 1951-9.
5. Chung R, Foster BK, Zannettino AC, et al. 2009. Bone, 44: 878-85.
6. Sufen G, Xianghong Y, Yongxia C, et al. 2011. Cell Biol Int, 35: 545-51.
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Background
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重组人血小板源生长Factor-BB蛋白Platelet-derived growth factor (PDGF) presenting in serum but absent from plasma was first discovered in animal study by Lynch and co-workers in the late 1980s. It is a disulfide-linked dimer consisting of two peptides-chain A and chain B. PDGF has three subforms: PDGF-AA, PDGF-BB, PDGF-AB. It is involved in a number of biological processes, including hyperplasia, embryonic neuron development, chemotaxis, and respiratory tubule epithelial cell development. The function of PDGF is mediated by two receptors (PDGFR-α and PDGFR-β).
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