Article History

Received: 13 January 2015

Accepted: 15 May 2015

First Online: 29 June 2015

Change Date: 7 July 2015

Change Type: Erratum

Change Date: 21 July 2015

Change Type: Corrigendum

Change Details: In the version of this article initially published online, the final intermediate in Figure 1a was originally depicted as a fully delocalized radical anion, which was incorrect. The error has been corrected for the print, PDF and HTML versions of this article.

Change Details: In the version of this article initially published, the PDB code for the structure of BamBC as isolated was listed as 4Z4O, which was incorrect. The correct code is 4Z40. The error has been corrected for the PDF and HTML versions of this article.

Competing interests

: The authors declare no competing financial interests.