8BRD | pdb_00008brd

Mechanisms of ion selectivity and rotor coupling in the bacterial flagellar sodium-driven stator unit

External Resource: Annotation

Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification
Membrane Protein Annotation: PDBTM
Membrane Protein Annotation: MemProtMD

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
C [auth D], D [auth C]	PF01618	MotA/TolQ/ExbB proton channel family (MotA_ExbB)	MotA/TolQ/ExbB proton channel family	-	Family
F, G	PF13677	Membrane MotB of proton-channel complex MotA/MotB (MotB_plug)	Membrane MotB of proton-channel complex MotA/MotB	This is the MotB member of the E.coli MotA/MotB proton-channel complex that forms the stator of the bacterial membrane flagellar motor. Key residues act as a plug to prevent premature proton flow. The plug is in the periplasm just C-terminal to the M ...	This is the MotB member of the E.coli MotA/MotB proton-channel complex that forms the stator of the bacterial membrane flagellar motor. Key residues act as a plug to prevent premature proton flow. The plug is in the periplasm just C-terminal to the MotB TM, consisting of an amphipathic alpha helix flanked by Pro-52 and Pro-65, eg in Swiss:D3V2T1. In addition to the Pro residues, Ile-58, Tyr-61, and Phe 62 are also essential for plug function [1][2].	Domain
A, B [auth E], E [auth B]	PF01618	MotA/TolQ/ExbB proton channel family (MotA_ExbB)	MotA/TolQ/ExbB proton channel family	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
C [auth D], D [auth C]	Chemotaxis protein PomA	-	chemotaxis response to stimulus taxis response to chemical response to external stimulus locomotion transport proton transmembrane transport monoatomic ion transmembrane transport inorganic ion transmembrane transport establishment of localization inorganic cation transmembrane transport transmembrane transport monoatomic cation transmembrane transport chemotaxis response to stimulus taxis response to chemical response to external stimulus locomotion transport proton transmembrane transport monoatomic ion transmembrane transport inorganic ion transmembrane transport establishment of localization inorganic cation transmembrane transport transmembrane transport monoatomic cation transmembrane transport localization monoatomic ion transport cellular process monoatomic cation transport bacterial-type flagellum-dependent swarming motility bacterial-type flagellum-dependent cell motility cell motility archaeal or bacterial-type flagellum-dependent cell motility cilium or flagellum-dependent cell motility	cell periphery cellular anatomical structure plasma membrane membrane
F, G	Flagellar motor protein,VaPomB	-	-	cell periphery cellular anatomical structure plasma membrane membrane
A, B [auth E], E [auth B]	Chemotaxis protein PomA	-	chemotaxis response to stimulus taxis response to chemical response to external stimulus locomotion transport proton transmembrane transport monoatomic ion transmembrane transport inorganic ion transmembrane transport establishment of localization inorganic cation transmembrane transport transmembrane transport monoatomic cation transmembrane transport chemotaxis response to stimulus taxis response to chemical response to external stimulus locomotion transport proton transmembrane transport monoatomic ion transmembrane transport inorganic ion transmembrane transport establishment of localization inorganic cation transmembrane transport transmembrane transport monoatomic cation transmembrane transport localization monoatomic ion transport cellular process monoatomic cation transport bacterial-type flagellum-dependent swarming motility bacterial-type flagellum-dependent cell motility cell motility archaeal or bacterial-type flagellum-dependent cell motility cilium or flagellum-dependent cell motility	cell periphery cellular anatomical structure plasma membrane membrane

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
C [auth D], D [auth C]	IPR047055	Motility protein A-like	Family
C [auth D], D [auth C]	IPR002898	MotA/TolQ/ExbB proton channel	Domain
C [auth D], D [auth C]	IPR000540	Flagellar motor protein MotA, conserved site	Conserved Site
F, G	IPR006665	OmpA-like domain	Domain
F, G	IPR025713	Motility protein B-like, N-terminal domain	Domain
F, G	IPR050330	Bacterial Outer Membrane Structural/Functional	Family
F, G	IPR036737	OmpA-like domain superfamily	Homologous Superfamily
A, B [auth E], E [auth B]	IPR047055	Motility protein A-like	Family
A, B [auth E], E [auth B]	IPR002898	MotA/TolQ/ExbB proton channel	Domain
A, B [auth E], E [auth B]	IPR000540	Flagellar motor protein MotA, conserved site	Conserved Site

Membrane Protein Annotation: PDBTM PDBTM Database Homepage

Chains	External Link	Comment
A, B [auth E], C [auth D], D [auth C], E [auth B] A, B [auth E], C [auth D], D [auth C], E [auth B], F, G	PDBTM	Annotated as membrane protein by PDBTM

Membrane Protein Annotation: MemProtMD MemProtMD Database Homepage

Chains	External Link	Comment
A, B [auth E], C [auth D], D [auth C], E [auth B] A, B [auth E], C [auth D], D [auth C], E [auth B], F, G	MemProtMD	Annotated as membrane protein by MemProtMD

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM157729.