Search TCDB: (?)
TCDB is operated by the Saier Lab Bioinformatics Group

3 component system: The ATP-binding Cassette (ABC) Superfamily

Q56991 HmuT aka YPO0281 aka Y0541
Q56992 HmuU aka YPO0280 aka Y0540
Q56993 HmuV aka YPO0279 aka Y0539