4U9N

Structure of a membrane protein

External Resource: Annotation

Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification
Membrane Protein Annotation: OPM
Membrane Protein Annotation: PDBTM
Membrane Protein Annotation: MemProtMD
Membrane Protein Annotation: mpstruc

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	MgtE membrane domain-like	8003833	3000124	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	MgtE membrane domain-like	8003833	3000124	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)
A	MgtE	e4u9nA1	A: alpha duplicates or obligate multimers	X: Magnesium transporter MgtE membrane domain (From Topology)	H: Magnesium transporter MgtE membrane domain (From Topology)	T: Magnesium transporter MgtE membrane domain	F: MgtE	ECOD (1.6)
B	MgtE	e4u9nB1	A: alpha duplicates or obligate multimers	X: Magnesium transporter MgtE membrane domain (From Topology)	H: Magnesium transporter MgtE membrane domain (From Topology)	T: Magnesium transporter MgtE membrane domain	F: MgtE	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	1.10.357.20	Mainly Alpha	Orthogonal Bundle	Tetracycline Repressor	domain 2	CATH (4.3.0)
B	1.10.357.20	Mainly Alpha	Orthogonal Bundle	Tetracycline Repressor	domain 2	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF01769	Divalent cation transporter (MgtE)	Divalent cation transporter	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	Magnesium transporter MgtE	cation binding magnesium ion binding ion binding binding metal ion binding small molecule binding identical protein binding protein binding protein homodimerization activity protein dimerization activity monoatomic cation transmembrane transporter activity magnesium ion transmembrane transporter activity inorganic molecular entity transmembrane transporter activity inorganic cation transmembrane transporter activity cation binding magnesium ion binding ion binding binding metal ion binding small molecule binding identical protein binding protein binding protein homodimerization activity protein dimerization activity monoatomic cation transmembrane transporter activity magnesium ion transmembrane transporter activity inorganic molecular entity transmembrane transporter activity inorganic cation transmembrane transporter activity monoatomic ion transmembrane transporter activity transporter activity metal ion transmembrane transporter activity transmembrane transporter activity	localization transport magnesium ion transport monoatomic ion transport monoatomic cation transport establishment of localization metal ion transport	cell periphery plasma membrane membrane cellular anatomical entity

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR046342	CBS domain superfamily	Homologous Superfamily
A, B	IPR006668	Magnesium transporter, MgtE intracellular domain	Domain
A, B	IPR038076	MgtE, N-terminal domain superfamily	Homologous Superfamily
A, B	IPR000644	CBS domain	Domain
A, B	IPR036739	SLC41A/MgtE divalent cation transporters, integral membrane domain superfamily	Homologous Superfamily
A, B	IPR006667	SLC41A/MgtE, integral membrane domain	Domain
A, B	IPR006669	Magnesium transporter MgtE	Family

Membrane Protein Annotation: OPM OPM Database Homepage

Chains	External Link	Type	Class	Superfamily	Family
A, B	OPM				Magnesium ion transporter-E (MgtE)

Membrane Protein Annotation: PDBTM PDBTM Database Homepage

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

Membrane Protein Annotation: MemProtMD MemProtMD Database Homepage

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

Membrane Protein Annotation: mpstruc mpstruc Database Homepage

Chains	Resource Link	Group	Subgroup	Protein
A, B	mpstruc	TRANSMEMBRANE PROTEINS: ALPHA-HELICAL	Channels: Other Ion Channels	MgtE Mg²⁺ Transporter with bound Mg²⁺

RCSB PDB Core Operations are funded by the National Science Foundation (DBI-1832184), 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 R01GM133198.