Figure 3From: The proteolytic system of lactic acid bacteria revisited: a genomic comparisonSuperfamily tree of PepD members in LAB. PepD that is experimentally characterized from Bifidobacterium longum NCC2705 (BLO) [52] and pepD genes from L. helveticus CNRZ32 (LHV) analyzed by microarray [32] are indicated by the red dots. Green circles represent the speciation events, while red squares represent duplication events.Back to article page