# OC Root 2nd 3rd 4th 5th 6th PC Gene/Definition OC.458604 Bacteria.355510 Proteobacteria.488259 Betaproteobacteria.143888 Bordetella.16224 Bordetella_holmesii.3882 bho.2286 bho:D560_2410 oligopeptide transporter, OPT family