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RNase H, Bst
RNase H is an endoribonuclease which degrades the RNA strand of RNA/DNA hybrid molecules.
Description:
RNase H is an endoribonuclease which degrades the RNA strand of RNA/DNA hybrid molecules. RNase H digestion produces ribonucleotide molecules with 5'-phosphate and 3'-hydroxyl termini. RNAse H is nearly inactive against single or double-stranded RNA molecules.
Specific Activity: 625,000 U/mg
Application:
- Removal of poly(A) tails of mRNA hybridized to poly(dT)
- Removal of mRNA during second strand cDNA synthesis
Source:
A recombinant E. coli strain carrying the RNAse H gene (rnh) from E. coli.
Supplied in:
20 mM Tris-HCl
100 mM KCl
10 mM MgCl2
0.1 mM EDTA
0.1 mM DTT
50% Glycerol
pH 7.9 @ 25°C
Supplied with:
10x RNAse H Buffer
10x RNAse H Buffer:
500 mM Tris-HCl
750 mM KCl
30 mM MgCl2
100 mM DTT
pH 8.3 @ 25°C
Unit Definition:
1 unit is defined as the amount of enzyme that will hydrolyze 1 nmol of RNA from an 3H-labeled DNA:RNA hybrid molecule into acid-soluble material in 20 minutes at 37°C.
Recommended Storage Condition: -20°C
RNHE-100
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RNase R, E. coli
RNase R is an E. coli exoribonuclease which exhibits 3' to 5' exonuclease activity, efficiently digesting nearly all linear RNA species. This enzyme does not digest circular, lariat, or double stranded RNA with short 3 overhangs (less than seven nucleotides).
RNase H, Tth
RNase H is an endoribonuclease which degrades the RNA strand of RNA/DNA hybrid molecules.
2,500 units, 10,000 U/ml