Secreted protein spots present in both wild-type 10403S and the pplA-G72STOP mutant but absent in the in-frame pplA deletion mutant.

aEGD-e designations.bSecA2 secreted proteins identified in Lenz et al [88] and in Renier et. al [89] or possibly secreted by the SecA2 system as these proteins have been identified as non-classically secreted proteins in Bendtsen et al [87] or by using SecretomeP 2.0 Server program (http://www.cbs.dtu.dk/services/SecretomeP/); SecA secreted proteins identified in Port and Freitag [38] and/or Baumgartner et. al [103], or predicted by SignalP 4.1 Server program (http://www.cbs.dtu.dk/services/SignalP/).cUnique peptide matches.Secreted protein spots present in both wild-type 10403S and the pplA-G72STOP mutant but absent in the in-frame pplA deletion mutant.