Annotations: 4M8J

Crystal structure of CaiT R262E bound to gamma-butyrobetaine

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: 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)
A	SCOP2B Superfamily	SNF-like	8092924	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)
A	PHD_P300	e4m8jA1	A: beta barrels	X: Transmembrane heme-binding four-helical bundle	H: Anticodon-binding domain of Class II aaRS	T: Anticodon-binding domain of Class II aaRS	F: PHD_P300	ECOD (v294.2)

Protein Family Annotation Pfam Database Homepage

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

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

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	cell periphery cellular anatomical structure plasma membrane membrane

InterPro: Protein Family Classification InterPro Database Homepage

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

Membrane Protein Annotation: PDBTM PDBTM Database Homepage

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

Membrane Protein Annotation: MemProtMD MemProtMD Database Homepage

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

Membrane Protein Annotation: mpstruc mpstruc Database Homepage

Chains	Resource Link	Group	Subgroup	Protein
A	mpstruc	TRANSMEMBRANE PROTEINS: ALPHA-HELICAL	Betaine/Choline/Carnitine Transporter (BCCT) Family	CaiT carnitine transporter, R262E mutant with bound γ-butyrobetaine

RCSB PDB is hosted by

RCSB PDB is a member of

RCSB Partners
Nucleic Acid Knowledgebase

CoreTrustSeal

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.