| Catalog# | 
            C878 | 
        
        
            | Source | 
            HEK293 | 
        
        
            | Description | 
            Recombinant Human Trefoil Factor 2/TFF2 is produced by our mammalian expression system in human cells. The target protein is expressed with sequence (Gln24-Tyr129) of Human TFF2 fused with a polyhistidine tag at the C-terminus. | 
        
        
            | Names | 
            Trefoil Factor 2, Spasmolysin, Spasmolytic Polypeptide, SP, TFF2, SML1 | 
        
        
            | Accession # | 
            Q03403 | 
        
        
            | Formulation | 
            Lyophilized from a 0.2 μm filtered solution of PBS, pH 7.4 | 
        
        
            | Shipping | 
            The product is shipped at ambient temperature. | 
        
        
            | Reconstitution | 
            Always centrifuge tubes before opening. Do not mix by vortex or pipetting. 
            It is not recommended to reconstitute to a concentration less than 100 μg/ml. 
            Dissolve the lyophilized protein in 1X PBS. 
            Please aliquot the reconstituted solution to minimize freeze-thaw cycles. | 
        
        
            | Storage | 
            Lyophilized protein should be stored at < -20°C, though stable at room temperature for 3 weeks. 
            Reconstituted protein solution can be stored at 4-7°C for 2-7 days. 
            Aliquots of reconstituted samples are stable at < -20°C for 3 months. | 
        
        
            | Purity | 
            Greater than 95% as determined by SEC-HPLC and reducing SDS-PAGE. | 
        
        
            | Endotoxin | 
            Less than 0.1 ng/µg (1 IEU/µg). | 
        
        
            | Amino Acid Sequence | 
            
             EKPSPCQCSRLSPHNRTNCGFPGITSDQCFDNGCCFDSSVTGVPWCFHPLPKQESDQCVMEVSDR RNCGYPGISPEECASRKCCFSNFIFEVPWCFFPKSVEDCHYVDHHHHHH 
             | 
        
        
            | Background | 
            Trefoil Factor 2 (TFF2) is a member of the trefoil family and contains two P-type (trefoil) domains. Members of this family are characterized by having at least one copy of the trefoil motif, a 40-amino acid domain that contains three conserved disulfides. TFF2 is a secreted protein and specifically expressed in the stomach. TFF2 inhibits gastrointestinal motility and gastric acid secretion. TFF2 could function as a structural component of gastric mucus, possibly by stabilizing glycoproteins in the mucus gel through interactions with carbohydrate side chains. |