Annotations: 2OUX

Crystal structure of the soluble part of a magnesium transporter

External Resource: Annotation

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

Domain Annotation: SCOP/SCOPe Classification SCOP-e Database Homepage

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d2ouxa1	All alpha proteins	alpha-alpha superhelix	MgtE N-terminal domain-like	MgtE N-terminal domain-like	Magnesium transporter MgtE	(Enterococcus faecalis V583 ) [TaxId: 226185 ],	SCOPe (2.08)
A	d2ouxa2	Alpha and beta proteins (a+b)	CBS-domain pair	CBS-domain pair	CBS-domain pair	Magnesium transporter MgtE	(Enterococcus faecalis V583 ) [TaxId: 226185 ],	SCOPe (2.08)
B	d2ouxb1	All alpha proteins	alpha-alpha superhelix	MgtE N-terminal domain-like	MgtE N-terminal domain-like	Magnesium transporter MgtE	(Enterococcus faecalis V583 ) [TaxId: 226185 ],	SCOPe (2.08)
B	d2ouxb2	Alpha and beta proteins (a+b)	CBS-domain pair	CBS-domain pair	CBS-domain pair	Magnesium transporter MgtE	(Enterococcus faecalis V583 ) [TaxId: 226185 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2 Family	MgtE N-terminal domain-like	8022813	4000290	SCOP2 (2022-06-29)
A	SCOP2 Family	CBS-domain pair	8022816	4000247	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	MgtE/FliG domain-like	8035193	3000127	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	CBS-domain pair	8035196	3000123	SCOP2 (2022-06-29)
B	SCOP2B Superfamily	MgtE/FliG domain-like	8035193	3000127	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	CBS-domain pair	8035196	3000123	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_N	e2ouxA1	A: alpha bundles	X: Repetitive alpha hairpins	H: MgtE N-terminal domain-like	T: MgtE N-terminal domain-like	F: MgtE_N	ECOD (v294.1)
A	CBS	e2ouxA2	A: few secondary structure elements	X: CBS-domain	H: CBS-domain	T: CBS-domain	F: CBS	ECOD (v294.1)
B	HTHP	e2ouxB1	A: a/b three-layered sandwiches	X: HTH	H: Nudix	T: Nudix	F: HTHP	ECOD (v294.1)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	1.25.60.10	Mainly Alpha	Alpha Horseshoe	MgtE N-terminal fold	MgtE N-terminal domain-like	CATH (4.3.0)
A	3.10.580.10	Alpha Beta	Roll	CBS-domain	CBS-domain	CATH (4.3.0)
B	1.25.60.10	Mainly Alpha	Alpha Horseshoe	MgtE N-terminal fold	MgtE N-terminal domain-like	CATH (4.3.0)
B	3.10.580.10	Alpha Beta	Roll	CBS-domain	CBS-domain	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF00571	CBS domain (CBS)	CBS domain	CBS domains are small intracellular modules that pair together to form a stable globular domain [2]. This family represents a single CBS domain. Pairs of these domains have been termed a Bateman domain [6]. CBS domains have been shown to bind ligands ...	CBS domains are small intracellular modules that pair together to form a stable globular domain [2]. This family represents a single CBS domain. Pairs of these domains have been termed a Bateman domain [6]. CBS domains have been shown to bind ligands with an adenosyl group such as AMP, ATP and S-AdoMet [5]. CBS domains are found attached to a wide range of other protein domains suggesting that CBS domains may play a regulatory role making proteins sensitive to adenosyl carrying ligands. The region containing the CBS domains in Cystathionine-beta synthase is involved in regulation by S-AdoMet [4]. CBS domain pairs from AMPK bind AMP or ATP [5]. The CBS domains from IMPDH and the chloride channel CLC2 bind ATP [5].	Domain
A, B	PF03448	MgtE intracellular N domain (MgtE_N)	MgtE intracellular N domain	This domain is found at the N-terminus of eubacterial magnesium transporters of the MgtE family Pfam:PF01769. This domain is an intracellular domain that has an alpha-helical structure. The crystal structure of the MgtE transporter [1] shows two of 5 ...	This domain is found at the N-terminus of eubacterial magnesium transporters of the MgtE family Pfam:PF01769. This domain is an intracellular domain that has an alpha-helical structure. The crystal structure of the MgtE transporter [1] shows two of 5 magnesium ions are in the interface between the N domain and the CBS domains. In the absence of magnesium there is a large shift between the N and CBS domains.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	Magnesium transporter	monoatomic cation transmembrane transporter activity magnesium ion transmembrane transporter 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	-	cell periphery cellular anatomical structure plasma membrane membrane

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	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
A, B	IPR038076	MgtE, N-terminal domain superfamily	Homologous Superfamily

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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.