Corrigendum: Massively parallel single-amino-acid mutagenesis

Nat. Methods 12, 203–206 (2015); published online 5 January 2015; corrected after print 10 April 2017 In the version of this article initially published, the unit (nM) for the dUTP concentration described in the “Wild-type template preparation” section of the Online Methods was incorrect. The correct unit should be μM.