Scientific Reports 7:4016; doi:10.1038/s41598-017-04180-z; Article published online 21 June 2017.

The original version of this Article contained an error in Affiliation 6, which was incorrectly given as:

‘Planck Tandem Group in Computational Biophysics, University of Los Andes, Bogotá, Colombia’.

The correct affiliation is listed below:

‘Max Planck Tandem Group in Computational Biophysics, University of Los Andes, Bogotá, Colombia’.

This error has now been corrected in the HTML and PDF versions of the Article.