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DraI, (DraI)

Marka:EURx

Ürün Ölçü Fiyat TL Miktar
DraI, (AhaIII)
E2145-01
2000 u 52,8 EUR
+%20 KDV
2.597,76 TL
DraI, (AhaIII)
E2145-02
10 000 u 208 EUR
+%20 KDV
10.233,60 TL

DraI

(Deinococcus radiophilus)

5’-T T T A A A-3’
3’-A A A T T T-5’

Reaction Temperature: 37°C

Prototype: AhaIII

Inactivation Temperature (20 min): 65°C

Reaction Buffer:

1x Acet Buffer: 20 mM Tris-acetate (pH 7.5 at 37°C), 10 mM magnesium acetate, 50 mM potassium acetate, 1 mM dithiothreitol, 100 µg/ml bovine serum albumin.

Unit Definition: One unit is the amount of enzyme required to completely digest 1 µg of lambda DNA in 1 hr in a total reaction volume of 50 µl.

Assay Conditions: 20 mM Tris-acetate (pH 7.5 at 37°C), 50 mM potassium acetate, 10 mM magnesium acetate, 1 mM dithiothreitol, 1 µg of lambda DNA and 100 µg/ml bovine serum albumin. Incubation is at 37C for 1 hr in a reaction volume of 50 µl.

Storage Buffer: 10 mM Tris-HCl (pH 7.5 at 22°C), 50 mM KCl, 0.1 mM EDTA, 1 mM dithiothreitol, 200 µg/ml bovine serum albumin and 50% (v/v)glycerol.

Storage Conditions: Store at –20°C.

Quality Control:

Non-specific Endonuclease: Incubation of 80 units of DraI with 1 µg of lambda DNA at 37°C for 16 hrs (a 1280-fold over-digestion) resulted in the same sharp characteristic banding pattern as the standard assay reaction, as determined by agarose gel electrophoresis.

3'-Exonuclease: 5, 10 and 20 units of DraI and 0.13 µg of 3'-ends of lambda/TaqI fragments (3'-labeled with T4 DNA Polymerase and [³H]dGTP and [³H]dCTP), incubated for 1 hr at 37°C resulted in 0.0-slope of %-end label released per unit of enzyme. Reaction volume 10 µl.

5'-Exonuclease/5'-Phosphatase: Incubation of 5, 10 and 20 units of DraI with 0.05 µg of 5'-ends of [5'-³²P]lambda/HaeIII fragments for 1 hr at 37°C resulted in 0.01-slope of %-end label released per unit of enzyme. Reaction volume 10 µl.

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