Scientific Reports 7: Article number: 42296; published online: 08 February 2017; updated: 16 March 2017

The original version of this Article contained an error in Affiliation 2, which was incorrectly given as:

‘Department of Computational and Systems Biology, University of Pittsburgh, Baltimore, PA, USA’.

The correct affiliation is listed below:

‘Department of Computational and Systems Biology, University of Pittsburgh, Pittsburgh, PA, USA’.

Additionally, there was a typographical error in the Acknowledgements section.

‘EPA STAR 8357360 (UPitt)’.

now reads:

‘EPA STAR 83573601 (UPitt)’.

These errors have been corrected in both the PDF and HTML versions of the Article.