Annotations: 7DD5

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	7tm_3	e7dd5A2	A: alpha bundles	X: Family A G protein-coupled receptor-like (From Topology)	H: Family A G protein-coupled receptor-like (From Topology)	T: Family A G protein-coupled receptor-like	F: 7tm_3	ECOD (1.6)
A	ANF_receptor_2nd	e7dd5A3	A: a/b three-layered sandwiches	X: Flavodoxin-like	H: Class I glutamine amidotransferase-like	T: Periplasmic binding protein-like I	F: ANF_receptor_2nd	ECOD (1.6)
A	ANF_receptor_2nd_1	e7dd5A4	A: a/b three-layered sandwiches	X: Flavodoxin-like	H: Class I glutamine amidotransferase-like	T: Periplasmic binding protein-like I	F: ANF_receptor_2nd_1	ECOD (1.6)
A	NCD3G	e7dd5A1	A: few secondary structure elements	X: EGF-like	H: EGF-related	T: EGF/Laminin	F: NCD3G	ECOD (1.6)
B	7tm_3	e7dd5B1	A: alpha bundles	X: Family A G protein-coupled receptor-like (From Topology)	H: Family A G protein-coupled receptor-like (From Topology)	T: Family A G protein-coupled receptor-like	F: 7tm_3	ECOD (1.6)
B	ANF_receptor_2nd	e7dd5B3	A: a/b three-layered sandwiches	X: Flavodoxin-like	H: Class I glutamine amidotransferase-like	T: Periplasmic binding protein-like I	F: ANF_receptor_2nd	ECOD (1.6)
B	ANF_receptor_2nd_1	e7dd5B4	A: a/b three-layered sandwiches	X: Flavodoxin-like	H: Class I glutamine amidotransferase-like	T: Periplasmic binding protein-like I	F: ANF_receptor_2nd_1	ECOD (1.6)
B	NCD3G	e7dd5B2	A: few secondary structure elements	X: EGF-like	H: EGF-related	T: EGF/Laminin	F: NCD3G	ECOD (1.6)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF01094	Receptor family ligand binding region (ANF_receptor)	Receptor family ligand binding region	This family includes extracellular ligand binding domains of a wide range of receptors. This family also includes the bacterial amino acid binding proteins of known structure.	Domain
A, B	PF07562	Nine Cysteines Domain of family 3 GPCR (NCD3G)	Nine Cysteines Domain of family 3 GPCR	-	Family
A, B	PF00003	7 transmembrane sweet-taste receptor of 3 GCPR (7tm_3)	7 transmembrane sweet-taste receptor of 3 GCPR	This is a domain of seven transmembrane regions that forms the C-terminus of some subclass 3 G-coupled-protein receptors. It is often associated with a downstream cysteine-rich linker domain, NCD3G Pfam:PF07562, which is the human sweet-taste recepto ...	This is a domain of seven transmembrane regions that forms the C-terminus of some subclass 3 G-coupled-protein receptors. It is often associated with a downstream cysteine-rich linker domain, NCD3G Pfam:PF07562, which is the human sweet-taste receptor, and the N-terminal domain, ANF_receptor Pfam:PF01094. The seven TM regions assemble in such a way as to produce a docking pocket into which such molecules as cyclamate and lactisole have been found to bind and consequently confer the taste of sweetness [1].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	Calcium-Sensing Receptor	molecular transducer activity G protein-coupled receptor activity transmembrane signaling receptor activity signaling receptor 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	IPR017978	GPCR family 3, C-terminal	Domain
A, B	IPR017979	GPCR, family 3, conserved site	Conserved Site
A, B	IPR011500	GPCR, family 3, nine cysteines domain	Domain
A, B	IPR000068	GPCR, family 3, extracellular calcium-sensing receptor-related	Family
A, B	IPR001828	Receptor, ligand binding region	Domain

Membrane Protein Annotation: OPM OPM Database Homepage

Chains	External Link	Type	Class	Superfamily	Family
A, B	OPM	Transmembrane	Alpha-helical polytopic	Rhodopsin-like receptors and pumps	GPCR Metabotropic glutamate receptor (C) family

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	G Protein-Coupled Receptors: Class C	Calcium-Sensing Receptor (CaSR) in complex with NPS-2143

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.