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      Recombinant Rat SCF
       
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      產(chǎn)品說(shuō)明書
                  
      FAQ
                  
      COA
                  
      已發(fā)表文獻(xiàn)
                  
       
      Stem cell factor (SCF) is a potent hematopoietic growth factor required in regulating both embryonic and adult hematopoiesis. Mature stem cell factor consists of a 189 amino acid (aa) extracellular domain (ECD), a 23 aa transmembrane domain, and a 36 aa cytoplasmic tail. Human SCF protein shares 79% 87% aa sequence identity with dog, cat, mouse, and rat SCF. Rat SCF is active on mouse and human cells, but human SCF is only weakly active on mouse cells. SCF is a primary growth and activation factor for mast cells and eosinophils. Stem cell factor was demonstrated to be the ligand for the c-kit tyrosine kinase receptor. In the mouse, SCF is encoded by Sl (steel), a gene critical to the development of several distinct cell lineages during embryonic life and which has important effects on hematopoiesis in the adult animal.
      


       
      


      Product Properties
      


      
	
		
      
			
			
      Synonyms
      
			      		
			
			
      FPH2, FPHH, Hematopoietic growth factor KL, MGF, SHEP7, SLF
      
			      		
		
      
		
      
			
			
      Accession
      
			      		
			
			
      P21581
      
			      		
		
      
		
      
			
			
      GeneID
      
			      		
			
			
      60427
      
			      		
		
      
		
      
			
			
      Source
      
			      		
			
			
      E.coli-derived rat SCF protein, Gln26-Ala189, with an N-terminal Met.
      
			      		
		
      
		
      
			
			
      Molecular Weight
      
			      		
			
			
      Approximately 18.5 kDa.
      
			      		
		
      
		
      
			
			
      AA Sequence
      
			      		
			
			
      MQEICRNPVT DNVKDITKLV ANLPNDYMIT LNYVAGMDVL PSHCWLRDMV THLSVSLTTL LDKFSNISEG LSNYSIIDKL GKIVDDLVAC MEENAPKNVK ESLKKPETRN FTPEEFFSIF NRSIDAFKDF MVASDTSDCV LSSTLGPEKD SRVSVTKPFM LPPVA
      
			      		
		
      
		
      
			
			
      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 murine MC/9-2 mast cells is less than 5 ng/mL, corresponding to a specific activity of > 2.0 × 105 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 PBS, pH7.4. 
      
			      		
		
      
		
      
			
			
      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℃. 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!
      


       
      


      HB220214
      

         
       
       
       
       
       
       
       
      400-6111-883