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Klenow Fragment 3´- 5´ exo-

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10,000 units, 50,000 U/ml

Klenow Fragment, 3'->5' exo–, is the Large Fragment of E.coli DNA Polymerase I with a molecular weight of 68kDa. It exhibits 5'->3' polymerase activity, but lacks the 3'->5' exonuclease activities. The 3'->5' exonuclease activity of the enzyme is eliminated by mutations in the 3'->5' exonuclease active site.

Specific Activity:

- Random priming labeling
- DNA sequencing by the Sanger dideoxy method
- Second strand cDNA synthesis
- Second strand synthesis in mutagenesis protocols

Supplied in:
20 mM Tris-HCl
100 mM NaCl
1.0 mM DTT
0.1 mM EDTA
50% Glycerol
pH 7.5 @ 25°C

Supplied with: 10x Blue Buffer

10x Blue Buffer:
500mM NaCl
100mM Tris-HCl
100mM MgCl2
10mM DTT
pH 7.9 @ 25 ºC

Unit Definition:
1 unit is defined as the amount of enzyme that will incorporate 10 nmol of deoxyribonucleotides into a polynucleotide fraction (adsorbed on DE-81) in 30min at 37°C.

Recommended Storage Condition: -20°C


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