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zhaojian9891

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[ÇóÖú] RNA Pull-DownʵÑéÖÐtRNAµÄ¹¦ÄÜ£¿ ÒÑÓÐ1È˲ÎÓë

1. Streptavidin agarose beads ( see Notes 4 and 5 ).
2. Buffer A (150 mM KCl, 25 mM Tris pH 7.4, 5 mM EDTA,
0.5 mM DTT, 0.5 % NP40, 9 ¦Ìg/ml leupeptin, 9 ¦Ìg/ml pepstatin,
10 ¦Ìg/ml chymostatin, 3 ¦Ìg/ml aprotinin, 1 mM
PMSF, 100 U/ml RNase inhibitor).
3. Buffer A supplemented with tRNA (0.1 ¦Ìg/¦Ìl).
4. Rotary shaker.
5. Refrigerated microcentrifuge.
6. 2-ml microcentrifuge tubes

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