MotA/TolQ/ExbB proton channel (IPR002898)

Short name: MotA_ExbB_proton_chnl

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.

GO terms

Biological Process

GO:0006810 transport

Molecular Function

GO:0008565 protein transporter activity

Cellular Component

GO:0016020 membrane

Contributing signatures

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