Table 1. Major proteins associated with MLBs based on mass spectrometric analyses.

Protein	Description	Gene ID	Molecular weight (kDa)
PonC	Ponticulin-like proteins	DDB_G0286717	15
		DDB_G0286715
		DDB_G0286721
		DDB_G0286719
		DDB_G0286723
PhoPQ	PhoPQ-activated pathogenicity-related protein	DDB_G0276897	56
SctA	Secreted Protein A	DDB_G0278725	18
CDD	Cytidine/deoxycytidylate deaminase zinc-binding domain-containing protein	DDB_G0292096	35

The table does not include ribosomal proteins, elongation factors, actin, tubulin, mitochondrial proteins, peroxiredoxin, phosphoglycerate mutase, or histones, which commonly generate false positives in proteomic studies [23, 24]. Only proteins identified in three independent analyses are shown.