3TCU | pdb_00003tcu

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
B	PNP_UDP_1	e3tcuB1	A: alpha bundles	X: Lipocalins/Streptavidin	H: Zn-dependent exopeptidases	T: Zn-dependent exopeptidases	F: PNP_UDP_1	ECOD (develop294)
A	PNP_UDP_1	e3tcuA1	A: alpha bundles	X: Lipocalins/Streptavidin	H: Zn-dependent exopeptidases	T: Zn-dependent exopeptidases	F: PNP_UDP_1	ECOD (develop294)

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
B	1.10.287.70	Mainly Alpha	Orthogonal Bundle	Helix Hairpins		CATH (4.3.0)
A	1.10.287.70	Mainly Alpha	Orthogonal Bundle	Helix Hairpins		CATH (4.3.0)

Chains	Accession	Name	Description	Comments	Source
A, B	PF07885	Ion channel (Ion_trans_2)	Ion channel	-	Family

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	Potassium channel protein	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 cation binding ion binding binding 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 cation binding ion binding binding metal ion binding small molecule binding identical protein binding protein binding	-	cellular anatomical structure membrane

Chains	Accession	Name	Type
A, B	IPR013099	Potassium channel domain	Domain
A, B	IPR003280	Two pore domain potassium channel	Family

Chains	External Link	Comment
A, B	PDBTM	Annotated as membrane protein by PDBTM

Chains	External Link	Comment
A, B	MemProtMD	Annotated as membrane protein by MemProtMD

Chains	Resource Link	Group	Subgroup	Protein
A, B	mpstruc	TRANSMEMBRANE PROTEINS: ALPHA-HELICAL	Channels: Potassium, Sodium, & Proton Ion-Selective	NaK/NaK2K channel mutants; NaK-D66Y

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.

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