passages.id: 1.0alpha7.train.7.sent
passages.type: sentence
passages.text: Briefly, the oligonucleotide library was incubated with fusion proteins bound to either GST-coated bead-bound fusion proteins (GST-tag) or nickel/nitrilotriacetic acid matrix-bound fusion proteins (histidine-tag) in a buffer containing 20 mM Tris (pH 8.0), 50 mM KCl, 1 mM DTT, 0.5 mM EDTA, 10% glycerol, 20 μg/ml BSA, and 2 μg/ml poly(dI)⋅poly(dc).
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