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注意事项:
General notes:
1X p19 siRNA Binding Buffer:
20 mM Tris-HCl, 100 mM NaCl, 1 mM EDTA, 1 mM TCEP, 0.02% Tween-20 (pH 7.0 @ 25°C)
Usage notes:
p19 siRNA Binding Protein can selectively bind siRNAs in the presence of a 2,000 fold excess of other RNAs.
p19 siRNA Binding Protein does not bind ssRNA.Double-stranded 21 bp RNA with a 2-base overhang and a 5´ phosphate binds the most efficiently. Double-stranded miRNAs with mismatched base pairs will bind with lower affinity.
Due to the difference in molecular weight between p19 siRNA Binding Protein and siRNA, a 10 to 20-fold excess of p19 siRNA Binding Protein is needed.
TCEP (Tris 2-carboxyethyl Phosphine) can be replaced with DTT (dithiotreitol) in the required solutions. However, if DTT is used, it needs to be added separately into the reaction.
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