Annotations: 9EFZ

Chicken BEST1 bound to GABA in an open state

External Resource: Annotation

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

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
E	WD40	e9efzE1	A: alpha arrays	X: HTH	H: HTH	T: Three-helical HTH	F: WD40	ECOD (v295)
D	WD40	e9efzD1	A: alpha arrays	X: HTH	H: HTH	T: Three-helical HTH	F: WD40	ECOD (v295)
C	WD40	e9efzC1	A: alpha arrays	X: HTH	H: HTH	T: Three-helical HTH	F: WD40	ECOD (v295)
B	WD40	e9efzB1	A: alpha arrays	X: HTH	H: HTH	T: Three-helical HTH	F: WD40	ECOD (v295)
A	WD40	e9efzA1	A: alpha arrays	X: HTH	H: HTH	T: Three-helical HTH	F: WD40	ECOD (v295)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B, C, D, E	PF01062	Bestrophin, RFP-TM, chloride channel (Bestrophin)	Bestrophin, RFP-TM, chloride channel	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B, C, D, E	Bestrophin 1	bicarbonate transmembrane transporter activity passive transmembrane transporter activity bicarbonate channel activity channel activity transporter activity transmembrane transporter activity monoatomic anion transmembrane transporter activity chloride transmembrane transporter activity monoatomic ion channel activity monoatomic anion channel activity monoatomic ion transmembrane transporter activity chloride channel activity cation binding ion binding bicarbonate transmembrane transporter activity passive transmembrane transporter activity bicarbonate channel activity channel activity transporter activity transmembrane transporter activity monoatomic anion transmembrane transporter activity chloride transmembrane transporter activity monoatomic ion channel activity monoatomic anion channel activity monoatomic ion transmembrane transporter activity chloride channel activity cation binding ion binding binding metal ion binding small molecule binding identical protein binding protein binding gated channel activity intracellularly calcium-gated channel activity intracellularly calcium-gated chloride channel activity ligand-gated monoatomic anion channel activity ligand-gated channel activity ligand-gated monoatomic ion channel activity	cellular component organization cellular component biogenesis cellular component assembly protein-containing complex organization protein complex oligomerization protein-containing complex assembly cellular process cellular component organization or biogenesis localization transepithelial chloride transport transepithelial transport transport monoatomic anion transport monoatomic ion transport cellular component organization cellular component biogenesis cellular component assembly protein-containing complex organization protein complex oligomerization protein-containing complex assembly cellular process cellular component organization or biogenesis localization transepithelial chloride transport transepithelial transport transport monoatomic anion transport monoatomic ion transport establishment of localization chloride transport inorganic anion transport monoatomic ion transmembrane transport transmembrane transport chloride transmembrane transport monoatomic anion transmembrane transport	protein-containing complex cellular anatomical structure transmembrane transporter complex membrane chloride channel complex membrane protein complex transporter complex monoatomic ion channel complex cell periphery plasma membrane basal part of cell basal plasma membrane plasma membrane region basolateral plasma membrane

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B, C, D, E	IPR000615	Bestrophin	Family
A, B, C, D, E	IPR021134	Bestrophin-like	Family

Membrane Protein Annotation: PDBTM PDBTM Database Homepage

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

Membrane Protein Annotation: MemProtMD MemProtMD Database Homepage

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

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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.