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          Recombinant Rat CNTF重組大鼠睫狀神經(jīng)營養(yǎng)因子
           
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          產(chǎn)品說明書
                  
          FAQ
                  
          COA
                  
          已發(fā)表文獻(xiàn)
                  
           
          Ciliary neurotrophic factor (CNTF) is one of a small number of proteins with neurotrophic activities distinct from nerve growth factor (NGF). The cDNA for human CNTF encodes a 200 amino acid residue polypeptide that lacks a signal sequence. Recombinant human CNTF containing 200 amino acids and it shares 82% and 83% a.a. sequence identity with mouse and rat CNTF. The protein is a potent survival factor for neurons and oligodendrocytes and may be relevant in reducing tissue destruction during inflammatory attacks. In addition, CNTF is useful for treatment of motor neuron disease and it could reduce food intake without causing hunger or stress. CNTF is structurally related to IL-6, IL-11, LIF and OSM. Among factors belonging to the CNTF family, CNTF, leukemia inhibitory factor, cardiotrophin-1, and oncostatin M induced a strong promyelinating effect. 
          


           
          


          Product Properties
          


          
	
		
          
			
			
          Synonyms
          
			          		
			
			
          ciliary neurotrophic factor, CNTF, HCNTF
          
			          		
		
          
		
          
			
			
          Accession
          
			          		
			
			
          P20294
          
			          		
		
          
		
          
			
			
          GeneID
          
			          		
			
			
          25707
          
			          		
		
          
		
          
			
			
          Source
          
			          		
			
			
          E.coli-derived rat CNTF, Ala2-Met200.
          
			          		
		
          
		
          
			
			
          Molecular Weight
          
			          		
			
			
          Approximately 22.7 kDa.
          
			          		
		
          
		
          
			
			
          AA Sequence
          
			          		
			
			
          AFAEQTPLTL HRRDLCSRSI WLARKIRSDL TALMESYVKH QGLNKNINLD SVDGVPVAST DRWSEMTEAE RLQENLQAYR TFQGMLTKLL EDQRVHFTPT EGDFHQAIHT LMLQVSAFAY QLEELMVLLE QKIPENEADG MPATVGDGGL FEKKLWGLKV LQELSQWTVR SIHDLRVISS HQMGISALES HYGAKDKQM
          
			          		
		
          
		
          
			
			
          Tag
          
			          		
			
			
          None
          
			          		
		
          
		
          
			
			
          Physical Appearance
          
			          		
			
			
          Sterile Filtered White lyophilized (freeze-dried) powder.
          
			          		
		
          
		
          
			
			
          Purity
          
			          		
			
			
          >95% by SDS-PAGE and HPLC analyses.
          
			          		
		
          
		
          
			
			
          Biological Activity
          
			          		
			
			
          The ED50 as determined by a cell proliferation assay using human TF-1 cells is less than 30 ng/mL, corresponding to a specific activity of > 3.3 × 104 IU/mg. Fully biologically active when compared to standard. 
          
			          		
		
          
		
          
			
			
          Endotoxin
          
			          		
			
			
          < 1.0 EU per 1μg of the protein by the LAL method.
          
			          		
		
          
		
          
			
			
          Formulation
          
			          		
			
			
          Lyophilized from a 0.2 μm filtered concentrated solution in 2 × PBS, pH 7.4, 2% 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 mg/mL. Stock solutions should be apportioned into working aliquots and stored at ≤ -20℃. 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!
          


           
          


          HB220215
          


           
          

             
           
           
           
           
           
           
           
          400-6111-883