Annotations: 8TMI

Cryo-EM structure of CorA in complex with conformation-specific synthetic antibody C18 and 100 uM MgCl2, State MG0.1-2C

External Resource: Annotation

Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
SAbDab Antibody Annotation
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification
Membrane Protein Annotation: PDBTM

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
I [auth E]	SCOP2B Superfamily	Magnesium transport protein CorA, transmembrane region	8042853	3000358	SCOP2B (2022-06-29)
I [auth E]	SCOP2B Superfamily	CorA soluble domain-like	8037836	3000209	SCOP2B (2022-06-29)
H [auth D]	SCOP2B Superfamily	Magnesium transport protein CorA, transmembrane region	8042853	3000358	SCOP2B (2022-06-29)
H [auth D]	SCOP2B Superfamily	CorA soluble domain-like	8037836	3000209	SCOP2B (2022-06-29)
G [auth C]	SCOP2B Superfamily	CorA soluble domain-like	8037836	3000209	SCOP2B (2022-06-29)
G [auth C]	SCOP2B Superfamily	Magnesium transport protein CorA, transmembrane region	8042853	3000358	SCOP2B (2022-06-29)
F [auth B]	SCOP2B Superfamily	CorA soluble domain-like	8037836	3000209	SCOP2B (2022-06-29)
F [auth B]	SCOP2B Superfamily	Magnesium transport protein CorA, transmembrane region	8042853	3000358	SCOP2B (2022-06-29)
E [auth A]	SCOP2B Superfamily	CorA soluble domain-like	8037836	3000209	SCOP2B (2022-06-29)
E [auth A]	SCOP2B Superfamily	Magnesium transport protein CorA, transmembrane region	8042853	3000358	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)
I [auth E]	WD40	e8tmiE1	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: acid protease	F: WD40	ECOD (v294.2)
H [auth D]	WD40	e8tmiD1	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: acid protease	F: WD40	ECOD (v294.2)
G [auth C]	WD40	e8tmiC1	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: acid protease	F: WD40	ECOD (v294.2)
F [auth B]	WD40	e8tmiB1	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: acid protease	F: WD40	ECOD (v294.2)
E [auth A]	WD40	e8tmiA1	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: acid protease	F: WD40	ECOD (v294.2)
C [auth G]	WD40	e8tmiG1	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: acid protease	F: WD40	ECOD (v294.2)
B [auth L]	WD40	e8tmiL1	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: acid protease	F: WD40	ECOD (v294.2)
D [auth F]	WD40	e8tmiF1	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: acid protease	F: WD40	ECOD (v294.2)
A [auth H]	WD40	e8tmiH1	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: acid protease	F: WD40	ECOD (v294.2)

SAbDab Antibody Annotation SAbDab Database Homepage

Chain	Chain Class	Chain Subclass	Chain Type	Antigen Name(s)	Provenance Source
B [auth L], C [auth G]	Light Chain	IGKV1	Kappa	cobalt/magnesium transport protein cora \| cobalt/magnesium transport protein cora	SAbDab (2026-06-05)
A [auth H], D [auth F]	Heavy Chain	IGHV3	-	cobalt/magnesium transport protein cora \| cobalt/magnesium transport protein cora	SAbDab (2026-06-05)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
E [auth A], F [auth B], G [auth C], H [auth D], I [auth E]	PF01544	CorA-like Mg2+ transporter protein (CorA)	CorA-like Mg2+ transporter protein	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
E [auth A], F [auth B], G [auth C], H [auth D], I [auth E]	Cobalt/magnesium transport protein CorA	cation binding transition metal ion binding ion binding binding metal ion binding cobalt ion binding small molecule binding magnesium ion binding cobalt ion transmembrane transporter activity monoatomic cation transmembrane transporter activity monoatomic ion transmembrane transporter activity transporter activity transition metal ion transmembrane transporter activity metal ion transmembrane transporter activity cation binding transition metal ion binding ion binding binding metal ion binding cobalt ion binding small molecule binding magnesium ion binding cobalt ion transmembrane transporter activity monoatomic cation transmembrane transporter activity monoatomic ion transmembrane transporter activity transporter activity transition metal ion transmembrane transporter activity metal ion transmembrane transporter activity transmembrane transporter activity magnesium ion transmembrane transporter activity identical protein binding protein binding	transport magnesium ion transport monoatomic ion transmembrane transport magnesium ion transmembrane transport establishment of localization metal ion transport monoatomic cation transmembrane transport transmembrane transport localization monoatomic ion transport cellular process monoatomic cation transport cellular component organization cellular component biogenesis transport magnesium ion transport monoatomic ion transmembrane transport magnesium ion transmembrane transport establishment of localization metal ion transport monoatomic cation transmembrane transport transmembrane transport localization monoatomic ion transport cellular process monoatomic cation transport cellular component organization cellular component biogenesis cellular component assembly protein-containing complex organization protein complex oligomerization protein-containing complex assembly protein homooligomerization cellular component organization or biogenesis cobalt ion transport transition metal ion transport	cell periphery cellular anatomical structure plasma membrane membrane
B [auth L], C [auth G]	sAB C18 Light Chain	-	-	-
A [auth H], D [auth F]	sAB C18 Heavy Chain	-	-	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
E [auth A], F [auth B], G [auth C], H [auth D], I [auth E]	IPR002523	Mg2+ transporter protein, CorA-like/Zinc transport protein ZntB	Family
E [auth A], F [auth B], G [auth C], H [auth D], I [auth E]	IPR045863	CorA, transmembrane region	Homologous Superfamily
E [auth A], F [auth B], G [auth C], H [auth D], I [auth E]	IPR004488	Magnesium/cobalt transport protein CorA	Family
E [auth A], F [auth B], G [auth C], H [auth D], I [auth E]	IPR045861	CorA, cytoplasmic domain	Homologous Superfamily

Membrane Protein Annotation: PDBTM PDBTM Database Homepage

Chains	External Link	Comment
E [auth A], F [auth B], G [auth C], H [auth D], I [auth E]	PDBTM	Annotated as membrane protein by PDBTM

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