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當(dāng)前位置：> 供求商機(jī)> IL 1 beta Porcine
貨物所在地：福建廈門(mén)市
更新時(shí)間：2024-11-24 21:00:06
瀏覽次數(shù)：165
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| Synonyms | Catabolin, Lymphocyte-activating factor （LAF）, Endogenous Pyrogen （EP）, Leukocyte Endogenous Mediator （LEM）, Mononuclear Cell Factor （MCF）, IL1F2, IL-1 beta. |
| Introduction | Interleukin-1b is produced by activated macrophages, IL-1B stimulates thymocyte proliferation by inducing il-2 release, b-cell maturation and proliferation, and fibroblast growth factor activity. IL1B proteins are involved in the inflammatory response, being identified as endogenous pyrogens, and are reported to stimulate the release of prostaglandin and collagenase from synovial cells. |
| Description | Interleukin-1b Porcine Recombinant produced in E.Coli is a non-glycosylated, Polypeptide chain containing 154 amino acids and having a molecular mass of 17690 Dalton. The IL-1b is purified by proprietary chromatographic techniques. |
| Source | Escherichia Coli. |
| Physical Appearance | Sterile Filtered White lyophilized （freeze-dried） powder. |
| Formulation | The protein was lyophilized with no additives. |
| Solubility | It is recommended to reconstitute the lyophilized Interleukin 1 beta in sterile 18MΩ-cm H2O not less than 100μg/ml, which can then be further diluted to other aqueous solutions. |
| Stability | Lyophilized Interleukin 1b although stable at room temperature for 3 weeks, should be stored desiccated below -18°C. Upon reconstitution IL1b 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 Met-Ala-Asn-Val-Gln. |
| Biological Activity | The ED50 as determined by the dose-dependant stimulation of murine D10S cells is < 10 ng/ml. |
| Protein content | Protein quantitation was carried out by two independent methods 1. UV spectroscopy at 280 nm using the absorbency value of 0.69 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-1b 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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