85-1545-33　DNA Polymerase I Klenow Fragment, Exo-Minus, Recombinant 2000u　D3941-01

特徴

• This is an N-terminal truncation of the E. coli DNA Polymerase I protein, at amino acid #323. This truncation results in the deletion of the 5' to 3' exonuclease domain, but leaves the polymerase function unaffected. The introduction of two additional mutations (D355A and E357A) results in the abolition of the 3' to 5' exonuclease activity.
• Source:E. coli
• Unit Definition:1u catalyzes the incorporation of 10nmoles of deoxynucleotides into polynucleotide fraction in 30 minutes at 37°C.
• Reaction Buffer (Supplied):D3941-01A: DNA Polymerase I Klenow Fragment, Reaction Buffer, 10X:Supplied as a liquid in 200mM Tris, pH 7.5, 50mM MgCl2, 20mM DTT.
• Storage and Stability:Aliquot to avoid repeated freezing and thawing. Store at -20°C. Aliquots are stable for 6 months after receipt at -20°C. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap. Further dilutions can be made in assay buffer

仕様

• Size：2000u
• Source Antigen：Recombinant, E. coli
• Grade：Molecular Biology Grade
• Form：Supplied as a liquid in 50mM KPO4, pH 7.0, 100mM KCl, 1mM DTT, 50% glycerol.
• EU Commodity Code：30021019
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