重組豬白介素-1α（rPIL-1a）
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- 更新時(shí)間： 2024-05-23
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產(chǎn)品介紹
| CYT-396 | 重組豬白介素-1α（rPIL-1a） | 2μg/10μg/1mg | Prospec |
| Background: | |
| A soluble factor produced by monocytes, macrophages, and other cells which activates T-lymphocytes and potentiates their response to mitogens or antigens. IL-1 consists of two distinct forms, IL-1 alpha and IL-1 beta which perform the same functions but are distinct proteins. The synthesis of IL-1 can be induced by other cytokines including TNF-alpha , IFN-alpha , IFN-beta and IFN-g and also by bacterial endotoxins , viruses, mitogens, and antigens. In human skin fibroblasts IL1-alpha and TNF-alpha induce the synthesis of IL1-beta . In pheochromocytoma cells, NGF induces the synthesis of IL1. | |
 | Description : |
| Recombinant Porice IL-1 alpha produced in E.Coli is single, a non-glycosylated, Polypeptide chain containing 158 amino acids and having a molecular mass of 18076 Dalton. Porcine IL-1a is purified by proprietary chromatographic techniques. | |
| Physical Appearance: |
| Sterile Filtered White lyophilized （freeze-dried） powder. | |
| Formulation: |
| The protein was lyophilized from a concentrated （1mg/ml） sterile solution containing no additives. | |
| Solubility: |
| It is recommended to reconstitute the lyophilized Porcine IL-1 alpha in sterile 18MΩ-cm H2O not less than 100µg/ml, which can then be further diluted to other aqueous solutions. | |
| Stability: |
| Lyophilized Porcine IL-1a although stable at room temperature for 3 weeks, should be stored desiccated below -180C. Upon reconstitution Recombinant Porcine IL-1alpha should be stored at 40C between 2-7 days and for future use below -180C. 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 95.0% 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 Ser-Ala-Thr-Tyr-Ser. | |
| Dimers and aggregates: |
| Less than 1% as determined by silver-stained SDS-PAGE gel analysis. | |
| Biological Activity: |
| ProSpec’s IL-1a is fully biologically active when compared to standard. The ED50 as determined by the dose-dependant stimulation of D10S cells is < 0.03 ng/ml. | |
| Endotoxin: |
| Less than 0.1 ng/µg （IEU/µg） of IL-1alpha. | |
| Protein content: |
| Protein quantitation was carried out by two independent methods: 1. UV spectroscopy at 280 nm using the absorbency value of 0.669 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 IL-1a 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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