Annotations: 3RB5

Crystal structure of calcium binding domain CBD12 of CALX1.1

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

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
B	SCOP2B Superfamily	CalX-like	8078924	3002060	SCOP2B (2022-06-29)
A	SCOP2B Superfamily	CalX-like	8078924	3002060	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)
B	Pkinase, APH	e3rb5B1	A: alpha arrays	X: Alpha-beta plaits	H: Phage tail protein-like	T: Transmembrane protein 14A	F: Pkinase, APH	ECOD (v295.2)
B	Ig_2	e3rb5B4	A: alpha arrays	X: Subtilisin-like	H: Subtilisin-like	T: Subtilisin-like	F: Ig_2	ECOD (v295.2)
A	PIN	e3rb5A1	A: alpha arrays	X: OB-fold	H: HIT-related	T: HIT-related	F: PIN	ECOD (v295.2)
A	Cadherin	e3rb5A3	A: alpha arrays	X: Fusion glycoprotein F2	H: Fusion glycoprotein F2	T: Fusion glycoprotein F2	F: Cadherin	ECOD (v295.2)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
B	2.60.40.2030	Mainly Beta	Sandwich	Immunoglobulin-like	CalX-beta domain	CATH (4.3.0)
A	2.60.40.2030	Mainly Beta	Sandwich	Immunoglobulin-like	CalX-beta domain	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF03160	Calx-beta domain (Calx-beta)	Calx-beta domain		Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	Na/Ca exchange protein	monoatomic cation transmembrane transporter activity metal cation:monoatomic cation antiporter activity calcium:monoatomic cation antiporter activity sodium ion transmembrane transporter activity secondary active transmembrane transporter activity antiporter activity active transmembrane transporter activity calcium ion transmembrane transporter activity calcium:sodium antiporter activity monoatomic ion transmembrane transporter activity transporter activity metal ion transmembrane transporter activity transmembrane transporter activity cation binding monoatomic cation transmembrane transporter activity metal cation:monoatomic cation antiporter activity calcium:monoatomic cation antiporter activity sodium ion transmembrane transporter activity secondary active transmembrane transporter activity antiporter activity active transmembrane transporter activity calcium ion transmembrane transporter activity calcium:sodium antiporter activity monoatomic ion transmembrane transporter activity transporter activity metal ion transmembrane transporter activity transmembrane transporter activity cation binding ion binding binding calcium ion binding metal ion binding small molecule binding protein binding calmodulin binding	multicellular organismal process system process nervous system process neuromuscular process neuromuscular process controlling posture phototransduction cellular response to stimulus detection of light stimulus response to light stimulus detection of external stimulus regulation of biological process regulation of cellular process response to stimulus signaling multicellular organismal process system process nervous system process neuromuscular process neuromuscular process controlling posture phototransduction cellular response to stimulus detection of light stimulus response to light stimulus detection of external stimulus regulation of biological process regulation of cellular process response to stimulus signaling biological regulation response to external stimulus detection of abiotic stimulus cell communication detection of stimulus cellular process response to abiotic stimulus response to radiation signal transduction cellular response to stress response to stress response to endoplasmic reticulum stress	cell periphery cell projection rhabdomere membrane cellular anatomical structure rhabdomere membrane plasma membrane plasma membrane region cell projection membrane plasma membrane bounded cell projection

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR032452	Sodium/calcium exchanger domain, C-terminal extension	Domain
A, B	IPR051171	Calcium/Cation Antiporter	Family
A, B	IPR044880	NCX, central ion-binding domain superfamily	Homologous Superfamily
A, B	IPR004837	Sodium/calcium exchanger membrane region	Domain
A, B	IPR003644	Na-Ca exchanger/integrin-beta4	Domain
A, B	IPR038081	CalX-like domain superfamily	Homologous Superfamily
A, B	IPR004836	Sodium/calcium exchanger protein	Family

RCSB PDB is hosted by

RCSB PDB is a member of

RCSB Partners
Nucleic Acid Knowledgebase

CoreTrustSeal

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.