Peggy S. Eis, Marilyn C. Olson, Tsetska Takova, Michelle L. Curtis, Sarah M. Olson, Tatiana I. Vener, Hon S. Ip, Kevin L. Vedvik, Christian T. Bartholomay, Hatim T. Allawi, Wu-Po Ma, Jeff G. Hall, Michelle D. Morin, Tom H. Rushmore, Victor I. Lyamichev, and Robert W. Kwiatkowski.

Nat. Biotechnol. 19, 673–676 (2001).

Because of a proofreading error, the lysis buffer mentioned in the Figure 4 legend was described incorrectly as containing “200 mg/ml tRNA”.

The correct sentence is as follows:

Cell lysate preparation: 40 μl lysis buffer (20 mM Tris, pH 8, 5 mM MgCl2, 0.5% NP-40, 20 μg/ml tRNA) was added per well, cells were lysed at room temperature for 3–5 min, 30 μl of each lysate sample were transferred to a 96-well microplate and cellular nucleases inactivated by heating the lysates for 15 min at 75–80°C.

We regret the error.