Annotations: 1SY9

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

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d1sy9a1	All alpha proteins	EF Hand-like	EF-hand	Calmodulin-like	Calmodulin	African clawed frog (Xenopus laevis ) [TaxId: 8355 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	EF-hand	8034158	3001983	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	EF-hand_7_8	e1sy9A2	A: alpha arrays	X: EF-hand	H: EF-hand-related	T: EF-hand	F: EF-hand_7_8	ECOD (1.6)
A	EF-hand_7_5	e1sy9A1	A: alpha arrays	X: EF-hand	H: EF-hand-related	T: EF-hand	F: EF-hand_7_5	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	1.10.238.10	Mainly Alpha	Orthogonal Bundle	Recoverin	domain 1	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF13499	EF-hand domain pair (EF-hand_7)	EF-hand domain pair	-	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	CALMODULIN	cation binding ion binding binding calcium ion binding metal ion binding small molecule binding protein binding signaling receptor binding enzyme regulator activity molecular function regulator activity	-	-
B	Cyclic-nucleotide-gated olfactory channel	binding adenyl ribonucleotide binding cyclic nucleotide binding nucleotide binding purine ribonucleotide binding nucleoside phosphate binding ion binding purine nucleotide binding organic cyclic compound binding anion binding cAMP binding adenyl nucleotide binding heterocyclic compound binding carbohydrate derivative binding binding adenyl ribonucleotide binding cyclic nucleotide binding nucleotide binding purine ribonucleotide binding nucleoside phosphate binding ion binding purine nucleotide binding organic cyclic compound binding anion binding cAMP binding adenyl nucleotide binding heterocyclic compound binding carbohydrate derivative binding ribonucleotide binding small molecule binding protein-containing complex binding protein binding calmodulin binding monoatomic cation transmembrane transporter activity intracellularly ligand-gated monoatomic ion channel activity gated channel activity monoatomic ion channel activity intracellularly cyclic nucleotide-activated monoatomic cation channel activity ligand-gated channel activity ligand-gated monoatomic ion channel activity monoatomic cation channel activity intracellularly cAMP-activated cation channel activity passive transmembrane transporter activity channel activity monoatomic ion transmembrane transporter activity transporter activity ligand-gated monoatomic cation channel activity cyclic nucleotide-activated monoatomic ion channel activity transmembrane transporter activity calcium channel activity calcium ion transmembrane transporter activity inorganic molecular entity transmembrane transporter activity inorganic cation transmembrane transporter activity metal ion transmembrane transporter activity guanyl nucleotide binding guanyl ribonucleotide binding cGMP binding intracellularly cGMP-activated cation channel activity	localization transport monoatomic ion transport potassium ion transport monoatomic cation transport establishment of localization metal ion transport multicellular organismal process system process sensory perception of chemical stimulus sensory perception nervous system process sensory perception of smell sodium ion transport localization transport monoatomic ion transport potassium ion transport monoatomic cation transport establishment of localization metal ion transport multicellular organismal process system process sensory perception of chemical stimulus sensory perception nervous system process sensory perception of smell sodium ion transport monoatomic cation transmembrane transport transmembrane transport monoatomic ion transmembrane transport cellular process calcium ion transport	membrane-bounded organelle non-motile cilium membrane plasma membrane non-motile cilium membrane cilium cellular anatomical entity ciliary membrane plasma membrane bounded cell projection cell periphery cell projection bounding membrane of organelle organelle plasma membrane region membrane-bounded organelle non-motile cilium membrane plasma membrane non-motile cilium membrane cilium cellular anatomical entity ciliary membrane plasma membrane bounded cell projection cell periphery cell projection bounding membrane of organelle organelle plasma membrane region organelle membrane cell projection membrane intracellular cyclic nucleotide activated cation channel complex protein-containing complex transmembrane transporter complex membrane protein complex cation channel complex transporter complex monoatomic ion channel complex

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR018247	EF-Hand 1, calcium-binding site	Binding Site
A	IPR002048	EF-hand domain	Domain
A	IPR011992	EF-hand domain pair	Homologous Superfamily
A	IPR050145	Centrin/CML-like	Family
B	IPR005821	Ion transport domain	Domain
B	IPR000595	Cyclic nucleotide-binding domain	Domain
B	IPR032406	Cyclic nucleotide-gated channel, C-terminal leucine zipper domain	Domain
B	IPR014710	RmlC-like jelly roll fold	Homologous Superfamily
B	IPR018488	Cyclic nucleotide-binding, conserved site	Conserved Site
B	IPR050866	Cyclic nucleotide-gated cation channel	Family
B	IPR018490	Cyclic nucleotide-binding domain superfamily	Homologous Superfamily

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.