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厦门慧嘉生物专业销售CYT-507 重组兔瘦素 Leptin Rabbit/重组兔瘦素 Santa Abcam Cst jackson Pierce Sigma Amresco Qiagen Cayman abnova millipore invitrogen merk ebioscience prospec peprotech细胞因子特价。等生物试剂产品。实验为大，诚信经营，为客户提供“质量的产品”和“质的服务"QQ: 1193953234 1048735792 或登陆（向客服人员索取原版说明书） http://www.biohj.com 欢迎广大老师来询！
Leptin Rabbit/ 重组兔瘦素
产品编号：CYT-507
产品规格：20μg/100μg/1mg
产品规格：20μg/100μg/1mg
| 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 Rabbit 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-Arg. |
| 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 0.19 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 （IntelliGenetics）. 2. Analysis by RP-HPLC,using calibrated solution of Leptin Rabbit 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. |
