Annotations: 7ZPO

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
J [auth M]	F_UNCLASSIFIED	e7zpoM2	A: alpha complex topology	X: Voltage-gated ion channels (From Topology)	H: Voltage-gated ion channels (From Topology)	T: Voltage-gated ion channels	F: F_UNCLASSIFIED	ECOD (1.6)
E [auth I]	F_UNCLASSIFIED	e7zpoI3	A: alpha complex topology	X: Voltage-gated ion channels (From Topology)	H: Voltage-gated ion channels (From Topology)	T: Voltage-gated ion channels	F: F_UNCLASSIFIED	ECOD (1.6)
I [auth L]	F_UNCLASSIFIED	e7zpoL1	A: a/b three-layered sandwiches	X: Rossmann-like	H: Rossmann-related	T: NAD(P)-binding Rossmann-fold domains	F: F_UNCLASSIFIED	ECOD (1.6)
H [auth J]	F_UNCLASSIFIED	e7zpoJ1	A: a/b three-layered sandwiches	X: Rossmann-like	H: Rossmann-related	T: NAD(P)-binding Rossmann-fold domains	F: F_UNCLASSIFIED	ECOD (1.6)
G [auth B]	F_UNCLASSIFIED	e7zpoB1	A: a/b three-layered sandwiches	X: Rossmann-like	H: Rossmann-related	T: NAD(P)-binding Rossmann-fold domains	F: F_UNCLASSIFIED	ECOD (1.6)
F [auth A]	F_UNCLASSIFIED	e7zpoA1	A: a/b three-layered sandwiches	X: Rossmann-like	H: Rossmann-related	T: NAD(P)-binding Rossmann-fold domains	F: F_UNCLASSIFIED	ECOD (1.6)
D [auth F]	F_UNCLASSIFIED	e7zpoF1	A: a/b three-layered sandwiches	X: Rossmann-like	H: Rossmann-related	T: NAD(P)-binding Rossmann-fold domains	F: F_UNCLASSIFIED	ECOD (1.6)
C [auth E]	F_UNCLASSIFIED	e7zpoE1	A: a/b three-layered sandwiches	X: Rossmann-like	H: Rossmann-related	T: NAD(P)-binding Rossmann-fold domains	F: F_UNCLASSIFIED	ECOD (1.6)
B [auth D]	F_UNCLASSIFIED	e7zpoD1	A: a/b three-layered sandwiches	X: Rossmann-like	H: Rossmann-related	T: NAD(P)-binding Rossmann-fold domains	F: F_UNCLASSIFIED	ECOD (1.6)
A [auth H]	F_UNCLASSIFIED	e7zpoH1	A: a/b three-layered sandwiches	X: Rossmann-like	H: Rossmann-related	T: NAD(P)-binding Rossmann-fold domains	F: F_UNCLASSIFIED	ECOD (1.6)

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
E [auth I], J [auth M]	Ktr system potassium uptake protein B	monoatomic cation transmembrane transporter activity monoatomic anion transmembrane transporter activity chloride transmembrane transporter activity solute:monoatomic cation symporter activity potassium ion transmembrane transporter activity monoatomic anion:monoatomic cation symporter activity secondary active transmembrane transporter activity chloride:monoatomic cation symporter activity active transmembrane transporter activity monoatomic ion transmembrane transporter activity transporter activity metal ion transmembrane transporter activity transmembrane transporter activity symporter activity monoatomic cation transmembrane transporter activity monoatomic anion transmembrane transporter activity chloride transmembrane transporter activity solute:monoatomic cation symporter activity potassium ion transmembrane transporter activity monoatomic anion:monoatomic cation symporter activity secondary active transmembrane transporter activity chloride:monoatomic cation symporter activity active transmembrane transporter activity monoatomic ion transmembrane transporter activity transporter activity metal ion transmembrane transporter activity transmembrane transporter activity symporter activity potassium:chloride symporter activity	-	cell periphery cellular anatomical structure plasma membrane membrane
A [auth H], B [auth D], C [auth E], D [auth F], F [auth A], A [auth H], B [auth D], C [auth E], D [auth F], F [auth A], G [auth B], H [auth J], I [auth L]	Ktr system potassium uptake protein A	binding adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding purine nucleotide binding anion binding adenyl nucleotide binding ATP binding heterocyclic compound binding carbohydrate derivative binding ribonucleotide binding binding adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding purine nucleotide binding anion binding adenyl nucleotide binding ATP binding heterocyclic compound binding carbohydrate derivative binding ribonucleotide binding small molecule binding monoatomic cation transmembrane transporter activity monoatomic ion transmembrane transporter activity transporter activity transmembrane transporter activity	localization transport monoatomic ion transport potassium ion transport monoatomic cation transport establishment of localization metal ion transport	cell periphery cellular anatomical structure plasma membrane membrane

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
E [auth I], J [auth M]	IPR003445	Cation transporter	Family
E [auth I], J [auth M]	IPR004772	TrkH potassium transport family	Family
A [auth H], B [auth D], C [auth E], D [auth F], F [auth A], A [auth H], B [auth D], C [auth E], D [auth F], F [auth A], G [auth B], H [auth J], I [auth L]	IPR006037	Regulator of K+ conductance, C-terminal	Domain
A [auth H], B [auth D], C [auth E], D [auth F], F [auth A], A [auth H], B [auth D], C [auth E], D [auth F], F [auth A], G [auth B], H [auth J], I [auth L]	IPR050721	Trk/Ktr/HKT Potassium Transport	Family
A [auth H], B [auth D], C [auth E], D [auth F], F [auth A], A [auth H], B [auth D], C [auth E], D [auth F], F [auth A], G [auth B], H [auth J], I [auth L]	IPR036291	NAD(P)-binding domain superfamily	Homologous Superfamily
A [auth H], B [auth D], C [auth E], D [auth F], F [auth A], A [auth H], B [auth D], C [auth E], D [auth F], F [auth A], G [auth B], H [auth J], I [auth L]	IPR036721	Regulator of K+ conductance, C-terminal domain superfamily	Homologous Superfamily
A [auth H], B [auth D], C [auth E], D [auth F], F [auth A], A [auth H], B [auth D], C [auth E], D [auth F], F [auth A], G [auth B], H [auth J], I [auth L]	IPR003148	Regulator of K+ conductance, N-terminal lobe	Domain

Membrane Protein Annotation: OPM OPM Database Homepage

Chains	External Link	Type	Class	Superfamily	Family
A [auth H], B [auth D], C [auth E], D [auth F], E [auth I] A [auth H], B [auth D], C [auth E], D [auth F], E [auth I], F [auth A], G [auth B], H [auth J], I [auth L], J [auth M]	OPM	Transmembrane	Alpha-helical polytopic	Ion channel (VIC) superfamily	Potassium transporter TrkH/TrkA complex

Membrane Protein Annotation: PDBTM PDBTM Database Homepage

Chains	External Link	Comment
A [auth H], B [auth D], C [auth E], D [auth F], E [auth I] A [auth H], B [auth D], C [auth E], D [auth F], E [auth I], F [auth A], G [auth B], H [auth J], I [auth L], J [auth M]	PDBTM	Annotated as membrane protein by PDBTM

Membrane Protein Annotation: MemProtMD MemProtMD Database Homepage

Chains	External Link	Comment
A [auth H], B [auth D], C [auth E], D [auth F], E [auth I] A [auth H], B [auth D], C [auth E], D [auth F], E [auth I], F [auth A], G [auth B], H [auth J], I [auth L], J [auth M]	MemProtMD	Annotated as membrane protein by MemProtMD

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.