Cat#:RP-849HAT;Product Name:Recombinant Human DHFR Protein;Synonym:Dihydrofolate reductase;Description:Recombinant Dihydrofolate reductase protein, fused with His tag at N Terminus, was produced in E.coli. This recombinant protein was purified using our unique chromatography techniques.;Source:E.coli;AA Sequence:1-187aa;Molecular Characterization:23.6 kDa;Purity:Greater than 95% by SDS-PAGE;Bioactivity:Specific activity is > 3500 pmol/min/ug, and is defined as the amount of enzyme that converts 1.0 pmole of dihydrofolic acid to tetrahydrofolic acid per minute at pH 6.5 at 25C.;Formulation:Liquid Solution;Stability:Recombinant Human DHFR Protein was stable up to 1 year from date of receipt at -70℃;Concentration:1mg/mL;Storage Buffer:Recombinant Human DHFR protein was supplied in 20 mM Tris-HCl buffer (pH8.0) containing 0.1M Nacl 2mM DTT, and 30% glycerol;Storage:Recombinant Human DHFR Protein can be stored at +4℃for 1-2 weeks. It is recommended that the recombinant protein be aliquoted for optimal storage at -20 or -70℃. Please avoid repeated freeze-thaw cycles.;Usage:For Lab Research Use Only;