Promega Corporation

Topoisomerase I

Topoisomerase I, isolated from wheat germ, is an enzyme capable of removing negative supercoils from covalently closed circular DNA.

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Topoisomerase I

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Topoisomerase I

 Components

  • Topoisomerase I

    M285A1 x 200u
200u
2–10u/μl M2851 ¥ 1,098.00 Add to cart


QC Tests

Activity, endonuclease, DNase, RNase.

Source

Wheat germ.

Storage Buffer

50mM Tris-HCl (pH 7.9 at 25°C), 1mM EDTA, 1mM DTT, 50% (v/v) glycerol and 0.5M NaCl.

Storage Conditions

Store at –70°C.

Unit Definition

One unit is defined as the amount of enzyme required to convert 1μg of Form I to Form II pGEM®-9Zf(–) DNA in 30 minutes at 37°C. The reaction conditions are 50mM Tris-HCl (pH 7.5 at 25°C), 50mM NaCl, 0.1mM EDTA, 1mM DTT, 1μg of supercoiled pGEM®-9Zf(–) DNA and 20% glycerol.

For product intended use please see Patents & Disclaimers tab.

Use Restrictions

M2851 For Research Use Only. Not for Use in Diagnostic Procedures.

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