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DNA Polymerase I

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DPI-100

2,500 units, 10,000 U/ml

DNA Polymerase I is a DNA-dependent DNA polymerase. The enzyme catalyzes 5' -> 3' synthesis of DNA and exhibits 3' -> 5’ exonuclease proofreading activity.

Description:
DNA Polymerase I is a mesophilic DNA polymerase that exhibits 5' -> 3' DNA synthesis activity in addition to both 3' -> 5' and 5' -> 3' exonuclease activities. The combination of DNA synthesis and 5' -> 3' nuclease characteristics enable nick-translation during DNA synthesis.

Application:
- Nick translation of DNA to obtain probes with a high specific activity
- Second strand synthesis of cDNA

Source:
A recombinant E. coli strain carrying the PolA gene.

Specific Activity: 6,850U/mg

Supplied in:
25 mM Tris-HCl
0.1 mM EDTA
1.0 mM DTTl
50% Glycerol
pH 7.4 @ 25°C

Supplied with:
10x Blue Buffer

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

Unit Definition:
1 unit is defined as the amount of polymerase required to convert 10 nmol of dNTPs into acid insoluble material in 30 minutes at 37°C.

Recommended Storage Condition: -20°C

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