Protein substrates of a novel secretion system are numerous in the Bacteroidetes phylum and have in common a cleavable C-terminal secretion signal, extensive post-translational modification, and cell-surface attachment.
Veith PD, Nor Muhammad NA, Dashper SG, Likić VA, Gorasia DG, Chen D, Byrne SJ, Catmull DV, Reynolds EC. J Proteome Res. 2013 Oct 4; 12(10):4449-61. Epub 2013 Sep 23.