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          Mouse IFN-λ2/IL-28A
           
          更多活動(dòng)更多優(yōu)惠，盡在翌圣商城》
           
           
           
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          產(chǎn)品說(shuō)明書(shū)
                  
          FAQ
                  
          COA
                  
          已發(fā)表文獻(xiàn)
                  
           
          IL28A (Interferon-lambda 2; IFN-lambda 2), IL-28B/IFN-lambda 3, and IL-29/IFN-lambda 1 are type III interferons which are distantly related to IL-10 family and type I IFN family cytokines. Mature human IL-28A is an approximately 22-25 kDa protein that shares 66% amino acid (aa) sequence identity with mouse and rat IL-28A and shows cross-species activity. It shares 96% and 70% aa sequence identity with human IL-28B and IL-29, respectively. Type III interferons are upregulated in response to viral infection, and they act predominantly on epithelial cells through a receptor complex that contains IL-10 R beta and IL-28 R alpha /IFN-gamma R1. Type III IFNs function as anti-viral molecules and induce the upregulation of MHC class I antigen. IL-28A promotes the Th1 polarization of dendritic cells in the airway (e.g. production of IL-12 p70 and IFN-gamma ) and inhibits Th2 and Th17 mediated inflammation. In the liver, however, the IL-28A induced Th1 cytokine response contributes to inflammation in T cell mediated hepatitis. IL-28A additionally exhibits anti-tumor activity, in part by enhancing IL-12 dependent anti-tumor CTL responses in vivo. In contrast, it is up-regulated in invasive bladder cancer where it promotes tumor cell migration.
          


           
          


          Product Properties
          


          
	
		
          
			
			
          Synonyms
          
			          		
			
			
          Interleukin 28A；Interferon lambda-2；Interleukin-28A；IFN-lambda-2
          
			          		
		
          
		
          
			
			
          Accession
          
			          		
			
			
          Q4VK74
          
			          		
		
          
		
          
			
			
          GeneID
          
			          		
			
			
          330496
          
			          		
		
          
		
          
			
			
          Source
          
			          		
			
			
          E.coli-derived Mouse IFN-λ2/IL-28A, Asp20-Val193
          
			          		
		
          
		
          
			
			
          Molecular Weight
          
			          		
			
			
          Approximately 19.7 kDa.
          
			          		
		
          
		
          
			
			
          AA Sequence
          
			          		
			
			
          DPVPRATRLP VEAKDCHIAQ FKSLSPKELQ AFKKAKDAIE KRLLEKDMRC SSHLISRAWD LKQLQVQERP KALQAEVALT LKVWENMTDS ALATILGQPL HTLSHIHSQL QTCTQLQATA EPKPPSRRLS RWLHRLQEAQ SKETPGCLED SVTSNLFRLL TRDLKCVASG DQCV
          
			          		
		
          
		
          
			
			
          Tag
          
			          		
			
			
          None
          
			          		
		
          
		
          
			
			
          Physical Appearance
          
			          		
			
			
          Sterile Filtered White lyophilized (freeze-dried) powder.
          
			          		
		
          
		
          
			
			
          Purity
          
			          		
			
			
          > 95 % by SDS-PAGE and HPLC analyses.
          
			          		
		
          
		
          
			
			
          Biological Activity
          
			          		
			
			
          Fully biologically active when compared to standard. The ED50 as determined by an anti-viral assay using human HepG2 cells infected with encephalomyocarditis is less than 3 ng/ml, corresponding to a specific activity of > 3.3 × 105 IU/mg.
          
			          		
		
          
		
          
			
			
          Endotoxin
          
			          		
			
			
          < 0.1 EU per 1μg of the protein by the LAL method.
          
			          		
		
          
		
          
			
			
          Formulation
          
			          		
			
			
          Lyophilized from a 0.2 µm filtered concentrated solution in PBS, pH 7.4, with 5 % trehalose.
          
			          		
		
          
		
          
			
			
          Reconstitution
          
			          		
			
			
          We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Reconstitute in sterile distilled water or aqueous buffer containing 0.1 % BSA to a concentration of 0.1-1.0 mg/mL. Stock solutions should be apportioned into working aliquots and stored at ≤ -20 °C. Further dilutions should be made in appropriate buffered solutions.
          
			          		
		
          
	          

          


           
          


          Shipping and Storage
          


          The products are shipped with ice pack and can be stored at -20℃ to -80℃ for 1 year.
          


          Recommend to aliquot the protein into smaller quantities when first used and avoid repeated freeze-thaw cycles.
          


           
          


          Cautions
          


          1. Avoid repeated freeze-thaw cycles.
          


          2. For your safety and health, please wear lab coats and disposable gloves for operation.
          


          3. For research use only!
          


          HB220517
          

             
           
           
           
           
           
           
           
          400-6111-883