Annotations: 3L4B

Crystal Structure of an Octomeric Two-Subunit TrkA K+ Channel Ring Gating Assembly, TM1088A:TM1088B, from Thermotoga maritima

External Resource: Annotation

Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
F	SCOP2 Family	Potassium channel NAD-binding domain	8085872	4000005	SCOP2 (2022-06-29)
F	SCOP2 Superfamily	Potassium channel/Rex NAD-binding domain-like	8085873	3000042	SCOP2 (2022-06-29)
E	SCOP2B Superfamily	Potassium channel/Rex NAD-binding domain-like	8085873	3000042	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	Potassium channel/Rex NAD-binding domain-like	8085873	3000042	SCOP2B (2022-06-29)
A	SCOP2B Superfamily	Potassium channel/Rex NAD-binding domain-like	8085873	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	Tachylectin	e3l4bH1	A: alpha arrays	X: Alpha-beta plaits	H: Phage tail protein-like	T: Transmembrane protein 14A	F: Tachylectin	ECOD (v295.2)
G	Tachylectin	e3l4bG1	A: alpha arrays	X: Alpha-beta plaits	H: Phage tail protein-like	T: Transmembrane protein 14A	F: Tachylectin	ECOD (v295.2)
D	Tachylectin	e3l4bD1	A: alpha arrays	X: Alpha-beta plaits	H: Phage tail protein-like	T: Transmembrane protein 14A	F: Tachylectin	ECOD (v295.2)
C	Pyr_redox	e3l4bC1	A: alpha arrays	X: Immunoglobulin-like beta-sandwich	H: HTH	T: winged helix domain	F: Pyr_redox	ECOD (v295.2)
F	Tachylectin	e3l4bF1	A: alpha arrays	X: Alpha-beta plaits	H: Phage tail protein-like	T: Transmembrane protein 14A	F: Tachylectin	ECOD (v295.2)
E	Tachylectin	e3l4bE1	A: alpha arrays	X: Alpha-beta plaits	H: Phage tail protein-like	T: Transmembrane protein 14A	F: Tachylectin	ECOD (v295.2)
B	Tachylectin	e3l4bB1	A: alpha arrays	X: Alpha-beta plaits	H: Phage tail protein-like	T: Transmembrane protein 14A	F: Tachylectin	ECOD (v295.2)
A	FeS_assembly_P	e3l4bA1	A: alpha arrays	X: Immunoglobulin-like beta-sandwich	H: HTH	T: winged helix domain	F: FeS_assembly_P	ECOD (v295.2)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
H	3.40.50.720	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	NAD(P)-binding Rossmann-like Domain	CATH (4.3.0)
H	3.30.70.1450	Alpha Beta	2-Layer Sandwich	Alpha-Beta Plaits	Regulator of K+ conductance, C-terminal domain	CATH (4.3.0)
G	3.40.50.720	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	NAD(P)-binding Rossmann-like Domain	CATH (4.3.0)
G	3.30.70.1450	Alpha Beta	2-Layer Sandwich	Alpha-Beta Plaits	Regulator of K+ conductance, C-terminal domain	CATH (4.3.0)
D	3.40.50.720	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	NAD(P)-binding Rossmann-like Domain	CATH (4.3.0)
D	3.30.70.1450	Alpha Beta	2-Layer Sandwich	Alpha-Beta Plaits	Regulator of K+ conductance, C-terminal domain	CATH (4.3.0)
C	3.40.50.720	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	NAD(P)-binding Rossmann-like Domain	CATH (4.3.0)
C	3.30.70.1450	Alpha Beta	2-Layer Sandwich	Alpha-Beta Plaits	Regulator of K+ conductance, C-terminal domain	CATH (4.3.0)
F	3.40.50.720	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	NAD(P)-binding Rossmann-like Domain	CATH (4.3.0)
E	3.40.50.720	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	NAD(P)-binding Rossmann-like Domain	CATH (4.3.0)
B	3.40.50.720	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	NAD(P)-binding Rossmann-like Domain	CATH (4.3.0)
A	3.40.50.720	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	NAD(P)-binding Rossmann-like Domain	CATH (4.3.0)

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
C, D, G, H	TrkA K+ Channel protein TM1088B	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	-	cell periphery cellular anatomical structure plasma membrane membrane
A, B, E, F	TrkA K+ Channel protein TM1088A	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	-	cell periphery cellular anatomical structure plasma membrane membrane

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
C, D, G, H	IPR006037	Regulator of K+ conductance, C-terminal	Domain
C, D, G, H	IPR050721	Trk/Ktr/HKT Potassium Transport	Family
C, D, G, H	IPR036291	NAD(P)-binding domain superfamily	Homologous Superfamily
C, D, G, H	IPR036721	Regulator of K+ conductance, C-terminal domain superfamily	Homologous Superfamily
C, D, G, H	IPR006036	Potassium uptake protein TrkA	Family
C, D, G, H	IPR003148	Regulator of K+ conductance, N-terminal lobe	Domain
A, B, E, F	IPR050721	Trk/Ktr/HKT Potassium Transport	Family
A, B, E, F	IPR036291	NAD(P)-binding domain superfamily	Homologous Superfamily
A, B, E, F	IPR006036	Potassium uptake protein TrkA	Family
A, B, E, F	IPR003148	Regulator of K+ conductance, N-terminal lobe	Domain