11119915001
Roche
RNaza, bez DNazy
from bovine pancreas
Synonim(y):
Rnase
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About This Item
Kod UNSPSC:
41105600
Polecane produkty
pochodzenie biologiczne
bovine pancreas
Poziom jakości
Formularz
solution
aktywność właściwa
≥30 units/mg protein
opakowanie
pkg of 500 μg (1 ml)
producent / nazwa handlowa
Roche
metody
DNA purification: suitable
temp. przechowywania
−20°C
Powiązane kategorie
Opis ogólny
Pyrimidine-specific endoribonuclease that acts on single-stranded RNA. RNase, DNase-free, is a heterogeneous mixture of ribonucleases that has been prepared free of deoxyribonuclease activity according to the current Quality Control procedures. RNase, DNase-free, is particularly well suited for use in DNA isolation procedures. Before use, most RNase preparations must be boiled to remove DNase activity. This preparation of RNase does not need to be boiled; it can be used directly from the vial.
Zastosowanie
RNase, DNase-free, efficiently removes contaminating RNA from plasmid or genomic DNA preparations.
Definicja jednostki
One Kunitz unit is the amount of enzyme that causes a decrease in absorbance of A0 to A1 within one minute under the assay conditions. A0 to A1 corresponds to the total conversion, A1 being the final absorbance.
One unit produces a decrease in absorbance at 260 nm, which is equivalent to a total conversion of RNA to oligonucleotides in one minute at +25 °C.
One unit produces a decrease in absorbance at 260 nm, which is equivalent to a total conversion of RNA to oligonucleotides in one minute at +25 °C.
Postać fizyczna
Solution, 500 μg/ml, in 10 mM Tris-HCl, 5 mM CaCl2, 50% glycerol (pH 7.0).
Uwaga dotycząca przygotowania
Working concentration: The optimal working concentration for RNase, DNase free, is 2 to 5 μg/ml. The reaction volume will vary for different applications. Some suggested guidelines are given below:
Working solution: Storage and Dilution Buffer: 10 mM Tris-HCl, 5 mM CaCl2, 50% glycerol (v/v), pH 7.0.
- For small-scale isolation of plasmid DNA ("miniprep" from a 1.5 ml bacterial culture), use 0.5 μl of RNase, DNase-free in a reaction volume of 50 μl.
- To isolate plasmid DNA from a 100 ml bacterial culture, use 8 μl of RNase, DNase-free in a reaction volume of 2 ml.
- To isolate genomic DNA from cultured mammalian cells (5 x 107 cells), use 8 μl of RNase, DNase-free in a reaction volume of 2 ml.
Working solution: Storage and Dilution Buffer: 10 mM Tris-HCl, 5 mM CaCl2, 50% glycerol (v/v), pH 7.0.
Inne uwagi
For life science research only. Not for use in diagnostic procedures.
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Kod klasy składowania
12 - Non Combustible Liquids
Klasa zagrożenia wodnego (WGK)
WGK 1
Temperatura zapłonu (°F)
No data available
Temperatura zapłonu (°C)
No data available
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Protokoły
0,1 mU RNazy, wolnej od DNazy degraduje 1 μg RNA w ciągu 30 minut w temperaturze + 37 °C w objętości reakcyjnej 50 μL wody klasy PCR. Stężenie białka RNazy wolnej od DNazy wynosi 0,5 μg/μL.
0.1 mU RNase, DNase-free degrades 1 μg RNA in 30 min at + 37 °C in a reaction volume of 50 μL PCR grade water. The protein concentration of RNase, DNase-free is 0.5 μg/μL.
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