| 产品介绍 | | |
| Recombinant human leptinis a leptin preparation made inE. coli. Leptin is a major adipose-derived hormone and member of the leptin family, which plays a key role in appetite control and the regulation of energy expenditure.Secreted leptin associates with proteins within the bloodstream and is transported to the brain, where it inhibits or up-regulates the activity of neuropeptides such as neuropeptide Y (NPY) and alpha-melanocyte-stimulating hormone respectively. Leptin is a recognised marker of obesity, with a correlation between circulating levels of leptin and body fat mass, and defects in leptin production result in severe obesity. Regulators of leptin expression include insulin, cortisol, cAMP and thiazolidinediones. |
| 产品详情 | | |
| Target Species | Human |
| Product Form | Purified recombinant protein - lyophilized |
| Preparation | Purified recombinant leptin expressed inE.coli. Sterile filtered through a 0.2 micron filter |
| Reconstitution | Reconstitute with 1.0 ml distilled water. Care should be taken during reconstitution as the protein may appear as a film at the bottom of the vial. Bio-Rad recommend that the vial is gently mixed after reconstitution. For extended storage, the addition of 0.1% bovine serum abumin (BSA) is recommended. |
| Buffer Solution | Lyophilized with 0.1% TFA |
| Activity | PHP198 is biologically active in theob/obmouse obesity model. Theob/obmice were treated via intraperitoneal injection once daily at a dose of 5 µg Leptin/gm of body weight for 7 days. Significant effects on body weight, food consumption, and plasma glucose levels were observed to saline-treated controls. |
| Preservative Stabilisers | None present |
| Protein Molecular Weight | 16.0 kDa (147 amino acid residues) |
| Purity | >98% by SDS PAGE and HPLC |
| Regulatory | For research purposes only |
| Guarantee | Guaranteed for 3 months from the date of reconstitution or until the date of expiry, whichever comes first. Please see label for expiry date. |
| 存储条件 | | |
| Prior to reconstitution store at -20℃.After reconstitution store at -20℃.Storage in frost-free freezers is not recommended. This product should be stored undiluted. Avoid repeated freezing and thawing as this may denature the antibody. Should this product contain a precipitate we recommend microcentrifugation before use. |
| 应用 | | |
| Application Name | Verified | Min Dilution | Max Dilution |
| Functional Assays | √ | | |
| Where this product has not been tested for use in a particular technique this does not necessarily exclude its use in such procedures. Suggested working dilutions are given as a guide only. It is recommended that the user titrates the product for use in their own system using appropriate negative/positive controls. |
QQ:1749072012