Annotations: 8D1K

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A [auth D]	PF01062	e8d1kD1	A: alpha bundles	X: Bestrophin (From Topology)	H: Bestrophin (From Topology)	T: Bestrophin	F: PF01062	ECOD (1.6)
B	PF01062	e8d1kB1	A: alpha bundles	X: Bestrophin (From Topology)	H: Bestrophin (From Topology)	T: Bestrophin	F: PF01062	ECOD (1.6)
C [auth A]	PF01062	e8d1kA1	A: alpha bundles	X: Bestrophin (From Topology)	H: Bestrophin (From Topology)	T: Bestrophin	F: PF01062	ECOD (1.6)
D [auth E]	PF01062	e8d1kE1	A: alpha bundles	X: Bestrophin (From Topology)	H: Bestrophin (From Topology)	T: Bestrophin	F: PF01062	ECOD (1.6)
E [auth C]	PF01062	e8d1kC1	A: alpha bundles	X: Bestrophin (From Topology)	H: Bestrophin (From Topology)	T: Bestrophin	F: PF01062	ECOD (1.6)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A [auth D], B, C [auth A], D [auth E], E [auth C]	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 [auth D], B, C [auth A], D [auth E], E [auth C]	Bestrophin-1	monoatomic anion transmembrane transporter activity chloride transmembrane transporter activity monoatomic ion channel activity passive transmembrane transporter activity inorganic molecular entity transmembrane transporter activity channel activity monoatomic anion channel activity monoatomic ion transmembrane transporter activity transporter activity transmembrane transporter activity inorganic anion transmembrane transporter activity chloride channel activity bicarbonate transmembrane transporter activity organic anion transmembrane transporter activity monoatomic anion transmembrane transporter activity chloride transmembrane transporter activity monoatomic ion channel activity passive transmembrane transporter activity inorganic molecular entity transmembrane transporter activity channel activity monoatomic anion channel activity monoatomic ion transmembrane transporter activity transporter activity transmembrane transporter activity inorganic anion transmembrane transporter activity chloride channel activity bicarbonate transmembrane transporter activity organic anion transmembrane transporter activity 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 identical protein binding protein binding binding	localization transport monoatomic anion transport monoatomic ion transport chloride transport establishment of localization inorganic anion transport detection of light stimulus involved in visual perception detection of light stimulus response to light stimulus detection of external stimulus multicellular organismal process sensory perception of light stimulus system process localization transport monoatomic anion transport monoatomic ion transport chloride transport establishment of localization inorganic anion transport detection of light stimulus involved in visual perception detection of light stimulus response to light stimulus detection of external stimulus multicellular organismal process sensory perception of light stimulus system process response to stimulus nervous system process detection of visible light response to external stimulus detection of abiotic stimulus detection of stimulus sensory perception detection of light stimulus involved in sensory perception response to abiotic stimulus response to radiation visual perception detection of stimulus involved in sensory perception regulation of calcium ion transport regulation of localization regulation of biological process regulation of transport regulation of monoatomic ion transport biological regulation metal ion transport calcium ion transport regulation of metal ion transport monoatomic cation transport transepithelial chloride transport transepithelial transport transmembrane transport monoatomic ion transmembrane transport cellular process	protein-containing complex transmembrane transporter complex membrane chloride channel complex membrane protein complex cellular anatomical entity transporter complex monoatomic ion channel complex cell periphery basal part of cell plasma membrane basal plasma membrane plasma membrane region intracellular anatomical structure protein-containing complex transmembrane transporter complex membrane chloride channel complex membrane protein complex cellular anatomical entity transporter complex monoatomic ion channel complex cell periphery basal part of cell plasma membrane basal plasma membrane plasma membrane region intracellular anatomical structure cytoplasm cytosol basolateral plasma membrane

InterPro: Protein Family Classification InterPro Database Homepage

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

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A [auth D], B, C [auth A], D [auth E], E [auth C]	Pharos: O76090	vitelliform macular dystrophy autosomal recessive bestrophinopathy retinitis pigmentosa autosomal dominant vitreoretinochoroidopathy retinitis pigmentosa 50 retinal degeneration vitelliform macular dystrophy 2 ovarian cancer VITREORETINOCHOROIDOPATHY (disorder) asthma cataract inherited retinal dystrophy macular degeneration adult-onset foveomacular vitelliform dystrophy atypical teratoid rhabdoid tumor vitelliform macular dystrophy autosomal recessive bestrophinopathy retinitis pigmentosa autosomal dominant vitreoretinochoroidopathy retinitis pigmentosa 50 retinal degeneration vitelliform macular dystrophy 2 ovarian cancer VITREORETINOCHOROIDOPATHY (disorder) asthma cataract inherited retinal dystrophy macular degeneration adult-onset foveomacular vitelliform dystrophy atypical teratoid rhabdoid tumor benign concentric annular macular dystrophy colorectal cancer malignant mesothelioma osteosarcoma tuberculosis vitelliform macular dystrophy 3 age-related macular degeneration cone-rod dystrophy lung cancer medulloblastoma

Membrane Protein Annotation: OPM OPM Database Homepage

Chains	External Link	Type	Class	Superfamily	Family
A [auth D], B, C [auth A], D [auth E], E [auth C]	OPM				Bestrophin anion channel

Membrane Protein Annotation: PDBTM PDBTM Database Homepage

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

Membrane Protein Annotation: mpstruc mpstruc Database Homepage

Chains	Resource Link	Group	Subgroup	Protein
A [auth D], B, C [auth A], D [auth E], E [auth C]	mpstruc	TRANSMEMBRANE PROTEINS: ALPHA-HELICAL	Channels: Other Ion Channels	Bestrophin-1 (BEST1) Ca²⁺-activated Cl⁻ channel, 1uM Ca2⁺ closed state

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 R01GM133198.