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PDGF BB Human/ 重組人血小板源生長(zhǎng)因子-BB 產(chǎn)品編號(hào)：CYT-501

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PDGF BB Human/ 重組人血小板源生長(zhǎng)因子-BB 產(chǎn)品編號(hào)：CYT-501
產(chǎn)品規(guī)格：2μg/10μg/1mg

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PDGF BB Human/ 重組人血小板源生長(zhǎng)因子-BB

產(chǎn)品編號(hào)：CYT-501
產(chǎn)品規(guī)格：2μg/10μg/1mg

Synonyms	Glioma-derived growth factor, GDGF, Osteosarcoma-derived Growth Factor, ODGF, SIS, SSV, PDGF2, c-sis, FLJ12858, PDGF-BB, PDGF B-chain, Plaet-derived growth factor beta polypeptide, Becaplermin.
Introduction	PDGF-BB is a member of the plaet-derived growth factor family. The four members of this family are mitogenic factors for cells of mesenchymal origin and are characterized by a motif of eight cysteines. This gene product can exist either as a homodimer （PDGF-BB） or as a heterodimer with the plaet-derived growth factor alpha polypeptide （PDGF-AB）, where the dimers are connected by disulfide bonds. Mutations in this gene are associated with meningioma. Reciprocal translocations between chromosomes 22 and 7, at sites where this gene and that for COL1A1 are located, are associated with a particular type of skin tumor called dermatofibrosarcoma protuberans resulting from unregulated expression of growth factor. Two splice variants have been identified for this gene.
Description	Plaet-Derived Growth Factor BB Human Recombinant is a homodimeric, non-glycosylated, polypeptide chain containing 109 amino acids and having a molecular mass of 24.3 kDa. PDGF-BB is purified by proprietary chromatographic techniques.
Source	Escherichia Coli.
Physical Appearance	Sterile Filtered White lyophilized （freeze-dried） powder.
Formulation	Lyophilized from 10mM Acetic Acid.
Solubility	It is recommended to reconstitute the lyophilized Plaet-derived Growth Factor-BB in 100mM Acetic Acid.
Stability	Lyophilized Plaet-derived Growth Factor BB although stable at room temperature for 3 weeks, should be stored desiccated below -18°C. Upon reconstitution PDGF BB should be stored at 4°C between 2-7 days and for future use below -18°C. Please prevent freeze-thaw cycles.
Purity	Greater than 95.0% as determined by（a） Analysis by RP-HPLC. （b） Analysis by SDS-PAGE.
Amino acid sequence	The sequence of the first five N-terminal amino acids was determined and was found to be Ser-Leu-Gly-Ser-Leu.
Biological Activity	The ED50, calculated by the dose-dependant proliferation of BALB/c 3T3 indicator cells （measured by 3H-thymidine uptake） is < 1 ng/ml, corresponding to a Specific Activity of 1 x 106 IU/mg.
Protein content	Protein quantitation was carried out by two independent methods 1. UV spectroscopy at 280 nm using the absorbency value of 0.55 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 standard solution of PDGF-BB 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.