5BUT | pdb_00005but

Crystal structure of inactive conformation of KtrAB K+ transporter

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: OPM
Membrane Protein Annotation: PDBTM
Membrane Protein Annotation: MemProtMD

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
D [auth G]	SCOP2B Superfamily	Potassium channel/Rex NAD-binding domain-like	8057613	3000042	SCOP2B (2022-06-29)
C [auth E]	SCOP2B Superfamily	Potassium channel/Rex NAD-binding domain-like	8057613	3000042	SCOP2B (2022-06-29)
B [auth C]	SCOP2B Superfamily	Potassium channel/Rex NAD-binding domain-like	8057613	3000042	SCOP2B (2022-06-29)
A	SCOP2B Superfamily	Potassium channel/Rex NAD-binding domain-like	8057613	3000042	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)
H [auth L]	C1-set	e5butL2	A: a/b three-layered sandwiches	X: HTH	H: HTH	T: Three-helical HTH	F: C1-set	ECOD (v294.1)
H [auth L]	MMS1_N	e5butL1	A: a/b three-layered sandwiches	X: beta-propeller-like	H: beta-propeller	T: 7-bladed	F: MMS1_N	ECOD (v294.1)
G [auth K]	C1-set	e5butK1	A: a/b three-layered sandwiches	X: HTH	H: HTH	T: Three-helical HTH	F: C1-set	ECOD (v294.1)
G [auth K]	MMS1_N	e5butK2	A: a/b three-layered sandwiches	X: beta-propeller-like	H: beta-propeller	T: 7-bladed	F: MMS1_N	ECOD (v294.1)
F [auth J]	C1-set	e5butJ2	A: a/b three-layered sandwiches	X: HTH	H: HTH	T: Three-helical HTH	F: C1-set	ECOD (v294.1)
F [auth J]	Fer4, Fer4_7, Fer4_10	e5butJ1	A: a/b three-layered sandwiches	X: Rossmann-like	H: Rossmann-related	T: Aha1/BPI domain-like	F: Fer4, Fer4_7, Fer4_10	ECOD (v294.1)
E [auth I]	C1-set	e5butI1	A: a/b three-layered sandwiches	X: HTH	H: HTH	T: Three-helical HTH	F: C1-set	ECOD (v294.1)
E [auth I]	SPRY	e5butI2	A: a/b three-layered sandwiches	X: Type II ABC importer transmembrane domain fold	H: Type II ABC importer transmembrane domain fold	T: Type II ABC importer transmembrane domain fold	F: SPRY	ECOD (v294.1)
D [auth G]	C1-set	e5butG1	A: a/b three-layered sandwiches	X: HTH	H: HTH	T: Three-helical HTH	F: C1-set	ECOD (v294.1)
C [auth E]	C1-set	e5butE1	A: a/b three-layered sandwiches	X: HTH	H: HTH	T: Three-helical HTH	F: C1-set	ECOD (v294.1)
B [auth C]	C1-set	e5butC1	A: a/b three-layered sandwiches	X: HTH	H: HTH	T: Three-helical HTH	F: C1-set	ECOD (v294.1)
A	C1-set	e5butA1	A: a/b three-layered sandwiches	X: HTH	H: HTH	T: Three-helical HTH	F: C1-set	ECOD (v294.1)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
E [auth I], F [auth J], G [auth K], H [auth L]	PF02386	Cation transport protein (TrkH)	Cation transport protein	-	Family
A, B [auth C], C [auth E], D [auth G]	PF02254	TrkA-N domain (TrkA_N)	TrkA-N domain	This domain is found in a wide variety of proteins. These protein include potassium channels Swiss:P31069, phosphoesterases Swiss:Q59027, and various other transporters. This domain binds to NAD.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
E [auth I], F [auth J], G [auth K], H [auth L]	Ktr system potassium uptake protein B	monoatomic cation transmembrane transporter activity potassium ion transmembrane transporter activity monoatomic ion transmembrane transporter activity transporter activity metal ion transmembrane transporter activity transmembrane transporter activity monoatomic anion transmembrane transporter activity chloride transmembrane transporter activity solute:monoatomic cation symporter activity monoatomic anion:monoatomic cation symporter activity secondary active transmembrane transporter activity chloride:monoatomic cation symporter activity active transmembrane transporter activity symporter activity monoatomic cation transmembrane transporter activity potassium ion transmembrane transporter activity monoatomic ion transmembrane transporter activity transporter activity metal ion transmembrane transporter activity transmembrane transporter activity monoatomic anion transmembrane transporter activity chloride transmembrane transporter activity solute:monoatomic cation symporter activity monoatomic anion:monoatomic cation symporter activity secondary active transmembrane transporter activity chloride:monoatomic cation symporter activity active transmembrane transporter activity symporter activity potassium:chloride symporter activity	transport monoatomic ion transmembrane transport potassium ion transmembrane transport establishment of localization metal ion transport monoatomic cation transmembrane transport transmembrane transport localization monoatomic ion transport potassium ion transport cellular process monoatomic cation transport	cell periphery cellular anatomical structure plasma membrane membrane
A, B [auth C], C [auth E], D [auth G]	Ktr system potassium uptake protein A,Ktr system potassium uptake protein A	monoatomic cation transmembrane transporter activity potassium ion transmembrane transporter activity monoatomic ion channel activity potassium channel activity monoatomic cation channel activity passive transmembrane transporter activity channel activity monoatomic ion transmembrane transporter activity transporter activity metal ion transmembrane transporter activity transmembrane transporter activity identical protein binding protein binding binding	transport monoatomic ion transmembrane transport potassium ion transmembrane transport establishment of localization metal ion transport monoatomic cation transmembrane transport transmembrane transport localization monoatomic ion transport potassium ion transport cellular process monoatomic cation transport	cell periphery cellular anatomical structure plasma membrane membrane

InterPro: Protein Family Classification InterPro Database Homepage

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

Membrane Protein Annotation: OPM OPM Database Homepage

Chains	External Link	Type	Class	Superfamily	Family
A, B [auth C], C [auth E], D [auth G], E [auth I] A, B [auth C], C [auth E], D [auth G], E [auth I], F [auth J], G [auth K], H [auth L]	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, B [auth C], C [auth E], D [auth G], E [auth I] A, B [auth C], C [auth E], D [auth G], E [auth I], F [auth J], G [auth K], H [auth L]	PDBTM	Annotated as membrane protein by PDBTM

Membrane Protein Annotation: MemProtMD MemProtMD Database Homepage

Chains	External Link	Comment
A, B [auth C], C [auth E], D [auth G], E [auth I] A, B [auth C], C [auth E], D [auth G], E [auth I], F [auth J], G [auth K], H [auth L]	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.