Annotations: 8JEU

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	Cullin_AB	e8jeuA1	A: a/b three-layered sandwiches	X: RNase A-like	H: RNase A-like	T: RNase A-like	F: Cullin_AB	ECOD (v294.1)
B [auth D]	Cullin_AB	e8jeuD1	A: a/b three-layered sandwiches	X: RNase A-like	H: RNase A-like	T: RNase A-like	F: Cullin_AB	ECOD (v294.1)
C	Cullin_AB	e8jeuC1	A: a/b three-layered sandwiches	X: RNase A-like	H: RNase A-like	T: RNase A-like	F: Cullin_AB	ECOD (v294.1)
D [auth B]	Cullin_AB	e8jeuB1	A: a/b three-layered sandwiches	X: RNase A-like	H: RNase A-like	T: RNase A-like	F: Cullin_AB	ECOD (v294.1)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B [auth D], C, D [auth B]	PF00023	Ankyrin repeat (Ank)	Ankyrin repeat	-	Repeat
A, B [auth D], C, D [auth B]	PF00520	Ion transport protein (Ion_trans)	Ion transport protein	-	Family
A, B [auth D], C, D [auth B]	PF00027	Cyclic nucleotide-binding domain (cNMP_binding)	Cyclic nucleotide-binding domain	This domain sensor domain can bind cAMP, cGMP, c-di-GMP, oxygen and 2-oxoglutarate (Matilla et. al., FEMS Microbiology Reviews, fuab043, 45, 2021, 1. https://doi.org/10.1093/femsre/fuab043).	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B [auth D], C, D [auth B]	Potassium channel SKOR	monoatomic cation transmembrane transporter activity gated channel activity monoatomic ion channel activity potassium ion transmembrane transporter activity outward rectifier potassium channel activity voltage-gated channel activity voltage-gated monoatomic ion channel activity potassium channel activity voltage-gated monoatomic cation channel activity monoatomic cation channel activity passive transmembrane transporter activity voltage-gated potassium channel activity channel activity monoatomic ion transmembrane transporter activity transporter activity monoatomic cation transmembrane transporter activity gated channel activity monoatomic ion channel activity potassium ion transmembrane transporter activity outward rectifier potassium channel activity voltage-gated channel activity voltage-gated monoatomic ion channel activity potassium channel activity voltage-gated monoatomic cation channel activity monoatomic cation channel activity passive transmembrane transporter activity voltage-gated potassium channel activity channel activity monoatomic ion transmembrane transporter activity transporter activity metal ion transmembrane transporter activity transmembrane transporter activity	localization transport monoatomic ion transport potassium ion transport monoatomic cation transport establishment of localization metal ion transport potassium ion homeostasis inorganic ion homeostasis chemical homeostasis homeostatic process monoatomic ion homeostasis monoatomic cation homeostasis response to abscisic acid localization transport monoatomic ion transport potassium ion transport monoatomic cation transport establishment of localization metal ion transport potassium ion homeostasis inorganic ion homeostasis chemical homeostasis homeostatic process monoatomic ion homeostasis monoatomic cation homeostasis response to abscisic acid response to stimulus response to lipid response to hormone response to alcohol response to chemical response to endogenous stimulus response to oxygen-containing compound	protein-containing complex cellular anatomical structure transmembrane transporter complex membrane membrane protein complex transporter complex monoatomic ion channel complex

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B [auth D], C, D [auth B]	IPR002110	Ankyrin repeat	Repeat
A, B [auth D], C, D [auth B]	IPR005821	Ion transport domain	Domain
A, B [auth D], C, D [auth B]	IPR003938	Potassium channel, voltage-dependent, EAG/ELK/ERG-like	Family
A, B [auth D], C, D [auth B]	IPR045319	Potassium channel KAT/AKT	Family
A, B [auth D], C, D [auth B]	IPR000595	Cyclic nucleotide-binding domain	Domain
A, B [auth D], C, D [auth B]	IPR036770	Ankyrin repeat-containing domain superfamily	Homologous Superfamily
A, B [auth D], C, D [auth B]	IPR014710	RmlC-like jelly roll fold	Homologous Superfamily
A, B [auth D], C, D [auth B]	IPR021789	KHA domain	Domain
A, B [auth D], C, D [auth B]	IPR018490	Cyclic nucleotide-binding domain superfamily	Homologous Superfamily

Membrane Protein Annotation: PDBTM PDBTM Database Homepage

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

Membrane Protein Annotation: mpstruc mpstruc Database Homepage

Chains	Resource Link	Group	Subgroup	Protein
A, B [auth D], C, D [auth B]	mpstruc	TRANSMEMBRANE PROTEINS: ALPHA-HELICAL	Channels: Potassium, Sodium, & Proton Ion-Selective	Stelar K⁺ outward rectifying channel (SKOR), wild-type

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.