Summary of database search results.

aall protein identifications. bprotein identifications with ≥2 MS/MS spectral evidences. cprotein identifications with ≥2 unique peptide hits. dconfidence score as reported by ProteinPilot™. edatabase downloaded from ftp://ftp.sanger.ac.uk/pub/S_coelicolor/whole_genome/Sco.prot_fas; a list of common contaminants were included in the search but contaminant protein hits are not reported here. fdatabase created by randomizing amino acids sequence; this database resembles S. coelicolor database in terms of number of entries, sequence lengths and amino acid composition.