3HFX | pdb_00003hfx

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2 Family	Betaine transporter BetP-like	8049743	4006618	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	SNF-like	8092923	3001654	SCOP2 (2022-06-29)

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	SNase	e3hfxA1	A: a/b three-layered sandwiches	X: Transmembrane heme-binding four-helical bundle	H: Anticodon-binding domain of Class II aaRS	T: Anticodon-binding domain of Class II aaRS	F: SNase	ECOD (v294.1)

Chains	Accession	Name	Description	Comments	Source
A	PF02028	BCCT, betaine/carnitine/choline family transporter (BCCT)	BCCT, betaine/carnitine/choline family transporter		Domain

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	L-carnitine/gamma-butyrobetaine antiporter	carnitine transmembrane transporter activity 4-(trimethylammonio)butanoate transmembrane transporter activity modified amino acid transmembrane transporter activity secondary active transmembrane transporter activity (R)-carnitine transmembrane transporter activity antiporter activity active transmembrane transporter activity (R)-carnitine:4-(trimethylammonio)butanoate antiporter activity transporter activity transmembrane transporter activity quaternary ammonium group transmembrane transporter activity	carnitine metabolic process modified amino acid metabolic process metabolic process cellular process amino-acid betaine metabolic process quaternary ammonium group transport 4-(trimethylammonio)butanoate transport localization nitrogen compound transport transport modified amino acid transport establishment of localization organic cation transport amino-acid betaine transport carnitine metabolic process modified amino acid metabolic process metabolic process cellular process amino-acid betaine metabolic process quaternary ammonium group transport 4-(trimethylammonio)butanoate transport localization nitrogen compound transport transport modified amino acid transport establishment of localization organic cation transport amino-acid betaine transport carnitine transport	cell periphery cellular anatomical structure plasma membrane membrane

Chains	Accession	Name	Type
A	IPR000060	BCCT transporter family	Family
A	IPR023449	L-carnitine/gamma-butyrobetaine antiporter CaiT	Family
A	IPR018093	BCCT transporter, conserved site	Conserved Site

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

Chains	External Link	Comment
A	PDBTM	Annotated as membrane protein by PDBTM

Chains	External Link	Comment
A	MemProtMD	Annotated as membrane protein by MemProtMD

Chains	Resource Link	Group	Subgroup	Protein
A	mpstruc	TRANSMEMBRANE PROTEINS: ALPHA-HELICAL	Betaine/Choline/Carnitine Transporter (BCCT) Family	CaiT carnitine transporter

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. RCSB PDB uses resources of the National Energy Research Scientific Computing Center (NERSC), a Department of Energy User Facility.

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