Erratum: Interrogating viral capsid assembly with ion mobility–mass spectrometry

Nature Chemistry 3, 126–132 (2011); published online 19 December 2010; corrected after print 23 July 2014. In the version of this Article originally published, the trace for cp4 was missing from Fig. 3a; it should have appeared as shown below. This has now been corrected in the online versions of the Article.