重組人粒細(xì)胞集落刺激因子（rHuG-CSF）
- 型號(hào)：
- 更新時(shí)間： 2024-05-23
- 上一個(gè)：重組人紅細(xì)胞生成素-α（rHuEPO-a）
- 下一個(gè)：重組鼠粒細(xì)胞克隆刺激因子（rmG-CSF）
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產(chǎn)品介紹
| CYT-220 | 重組人粒細(xì)胞集落刺激因子（rHuG-CSF） | 2μg/10μg/1mg | Prospec |
| Background : | |
| A glycoprotein of MW 20 kDa containing internal disulfide bonds. It induces the survival, proliferation, and differentiation of neutrophilic granulocyte precursor cells and functionally activates mature blood neutrophils. Among the family of colony-stimulating factors, G-CSF is the most potent inducer of terminal differentiation to granulocytes and macrophages of leukemic myeloid cell lines. The synthesis of G-CSF can be induced by bacterial endotoxins , TNF , Interleukin-1 and GM-CSF . Prostaglandin E2 inhibits the synthesis of G-CSF. In epithelial, endothelial, and fibroblastic cells secretion of G-CSF is induced by Interleukin-17 . | |
 | Description : |
| Recombinant Human G-CSF produced in E.coli is a single, non-glycosylated, polypeptide chain containing 175 amino acids and having a molecular mass of 18.8 KD Recombinant G-CSF is purified by proprietary chromatographic techniques. | |
| Physical Appearance: |
| Sterile Filtered White lyophilized （freeze-dried） powder. | |
| Formulation: |
| Recombinant G-CSF was lyophilized after extensive dialysis against 10mM sodium acetate buffer pH= 4. | |
| Solubility: |
| It is recommended to reconstitute the lyophilized G-CSF in sterile 18MΩ-cm H2O not less than 100µg/ml, which can then be further diluted to other aqueous solutions. | |
| Stability: |
| Lyophilized G-CSF although stable at room temperature for 3 weeks, should be stored desiccated below -18 C. Upon reconstitution G-CSF should be stored at 4 C between 2-7 days and for future use below -18 C. 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 98.0% 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-Thr-Pro-Leu-Gly. | |
| Dimers and aggregates: |
| Less than 1% as determined by silver-stained SDS-PAGE gel analysis. | |
| Biological Activity: |
| ProSpec's Recombinant Human Granulocyte-Colony Stimulating Factor is fully biologically active when compared to standard. The ED50, calculated by the dose-dependant proliferation of murine NFS-60 indicator cells （measured by 3H-thymidine uptake） is less then 0.1 ng/ml, corresponding to a Specific Activity of 1 x 108 IU/mg. | |
| Endotoxin: |
| Less than 0.1 ng/µg （IEU/µg） of G-CSF . | |
| Protein content: |
| Protein quantitation was carried out by two independent methods: 1. UV spectroscopy at 280 nm using the absorbency value of 0.815 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 recombinant G-CSF 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. |
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