4AIN

Crystal structure of BetP with asymmetric protomers.

External Resource: Annotation

Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification
Membrane Protein Annotation: OPM
Membrane Protein Annotation: PDBTM
Membrane Protein Annotation: MemProtMD
Membrane Protein Annotation: mpstruc

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
B	SCOP2B Superfamily	SNF-like	8092922	3001654	SCOP2B (2022-06-29)
A	SCOP2B Superfamily	SNF-like	8092922	3001654	SCOP2B (2022-06-29)
C	SCOP2B Superfamily	SNF-like	8092922	3001654	SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
B	BCCT	e4ainB1	A: alpha complex topology	X: Sodium:neurotransmitter symporter family (SNF)-like (From Topology)	H: Sodium:neurotransmitter symporter family (SNF)-like (From Topology)	T: Sodium:neurotransmitter symporter family (SNF)-like	F: BCCT	ECOD (1.6)
A	BCCT	e4ainA1	A: alpha complex topology	X: Sodium:neurotransmitter symporter family (SNF)-like (From Topology)	H: Sodium:neurotransmitter symporter family (SNF)-like (From Topology)	T: Sodium:neurotransmitter symporter family (SNF)-like	F: BCCT	ECOD (1.6)
C	BCCT	e4ainC1	A: alpha complex topology	X: Sodium:neurotransmitter symporter family (SNF)-like (From Topology)	H: Sodium:neurotransmitter symporter family (SNF)-like (From Topology)	T: Sodium:neurotransmitter symporter family (SNF)-like	F: BCCT	ECOD (1.6)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B, C	PF02028	BCCT, betaine/carnitine/choline family transporter (BCCT)	BCCT, betaine/carnitine/choline family transporter	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B, C	GLYCINE BETAINE TRANSPORTER BETP	active transmembrane transporter activity transporter activity symporter activity transmembrane transporter activity secondary active transmembrane transporter activity cation binding ion binding binding metal ion binding small molecule binding identical protein binding protein binding	-	cell periphery cellular anatomical structure plasma membrane membrane

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B, C	IPR000060	BCCT transporter family	Family
A, B, C	IPR018093	BCCT transporter, conserved site	Conserved Site

Membrane Protein Annotation: OPM OPM Database Homepage

Chains	External Link	Type	Class	Superfamily	Family
A, B, C	OPM	Transmembrane	Alpha-helical polytopic	APC (Amino acid-Polyamine-organoCation) superfamily	Betaine/carnitine/choline transporters

Membrane Protein Annotation: PDBTM PDBTM Database Homepage

Chains	External Link	Comment
A, B, C	PDBTM	Annotated as membrane protein by PDBTM

Membrane Protein Annotation: MemProtMD MemProtMD Database Homepage

Chains	External Link	Comment
A, B, C	MemProtMD	Annotated as membrane protein by MemProtMD

Membrane Protein Annotation: mpstruc mpstruc Database Homepage

Chains	Resource Link	Group	Subgroup	Protein
A, B, C	mpstruc	TRANSMEMBRANE PROTEINS: ALPHA-HELICAL	Betaine/Choline/Carnitine Transporter (BCCT) Family	BetP glycine betaine transporter in outward-facing conformation

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.