Orthologs of the BdAU0158 BcpA-CT and BcpI across several Burkholderia strains. Yellow indicates regions of amino acid sequence identity. Regions of amino acid sequence variation are indicated by shades of pink (BdAU0158/BtE264 group), purple (BgluBGR1 group), and green (BtE444 group), with percent identity to the corresponding BdAU0158 sequence shown below. Members of the BdAU0158/BtE264 group have variable sequences that are more similar to each other than they are to members of the BgluBGR1 and BtE444 groups. BdPC543, B. dolosa strain PC543; BdLO6, B. dolosa strain LO6 (also called B. cepacia LO6); BcATCC 25416, B. cepacia strain ATCC 25416; BtE254, B. thailandensis strain E254; Bt2002721723, B. thailandensis strain 2002721723; BgluBGR1, B. glumea strain BGR1; BglaATCC 25417, B. gladioli strain ATCC 25417; BtE444, B. thailandensis strain E444; BtPhuket 4W-1, B. thailandensis strain Phuket 4W-1; BtUSAMRU Malaysia #20, B. thailandensis strain USAMRU Malaysia #20; B. sp. MSMB1835, species unknown.