MotA/TolQ/ExbB proton channel (IPR002898)

Short name: MotA_ExbB_proton_chnl

Overlapping homologous superfamilies


Domain relationships



This family groups together integral membrane proteins that appear to be involved in translocation of proteins across a membrane. These proteins are probably proton channels. MotA is an essential component of the flagellar motor that uses a proton gradient to generate rotational motion in the flagellar [PMID: 10348868]. ExbB is part of the TonB-dependent transduction complex. The TonB complex uses the proton gradient across the inner bacterial membrane to transport large molecules across the outer bacterial membrane.

Contributing signatures

Signatures from InterPro member databases are used to construct an entry.