18906011628
當前位置：> 供求商機> Leptin Horse/ 重組馬瘦素
| Synonyms | OB Protein, Obesity Protein, OBS, Obesity factor. |
| Introduction | A 16-kDa peptide hormone secreted from white adipocytes and implicated in the regulation of food intake and energy balance. Leptin provides the key afferent signal from fat cells in the feedback system that controls body fat stores. |
| Description | Leptin Horse Recombinant produced in E.Coli is a single, non-glycosylated, polypeptide chain containing 146 amino acids and having a molecular mass of 16 kDa. The Leptin is purified by proprietary chromatographic techniques. |
| Source | Escherichia Coli. |
| Physical Appearance | Sterile Filtered White lyophilized （freeze-dried） powder. |
| Formulation | The protein was lyophilized from a concentrated （1mg/ml） solution with 0.0045mM NaHCO3. |
| Solubility | It is recommended to reconstitute the lyophilized Leptin in sterile 18MΩ-cm H2O not less than 100μg/ml, which can then be further diluted to other aqueous solutions. |
| Stability | Lyophilized Leptin although stable at room temperature for 3 weeks, should be stored desiccated below -18°C. Upon reconstitution Leptin 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 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 Ala-Val-Pro-Ile-Gln. |
| Biological Activity | Biological active as evidenced by inducing proliferation of BAF/3 cells stably transfected with the long form of human leptin receptor. |
| Protein content | Protein quantitation was carried out by two independent methods 1. UV spectroscopy at 280 nm using the absorbency value of 0.1 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 calibrated solution of Leptin Horse 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. |
請輸入賬號
請輸入密碼
以上信息由企業(yè)自行提供,，信息內容的真實性,、準確性和合法性由相關企業(yè)負責，化工儀器網對此不承擔任何保證責任,。
溫馨提示：為規(guī)避購買風險,，建議您在購買產品前務必確認供應商資質及產品質量。
