Annotations: 8BX7

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
B [auth A]	SCOP2B Superfamily	CLZ domain-like	8091636	3002529	SCOP2B (2021-05-27)
D [auth C]	SCOP2B Superfamily	CLZ domain-like	8091636	3002529	SCOP2B (2021-05-27)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
E	PF13499	e8bx7E1	A: alpha arrays	X: EF-hand	H: EF-hand-related	T: EF-hand	F: PF13499	ECOD (1.6)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A [auth D]	PF00520	Ion transport protein (Ion_trans)	Ion transport protein	-	Family
A [auth D]	PF00027	Cyclic nucleotide-binding domain (cNMP_binding)	Cyclic nucleotide-binding domain	This domain sensor domain can bind cAMP, cGMP, c-di-GMP, oxygen and 2-oxoglutarate (Matilla et. al., FEMS Microbiology Reviews, fuab043, 45, 2021, 1. https://doi.org/10.1093/femsre/fuab043).	Domain
B [auth A], C [auth B], D [auth C]	PF00520	Ion transport protein (Ion_trans)	Ion transport protein	-	Family
B [auth A], C [auth B], D [auth C]	PF16526	C-terminal leucine zipper domain of cyclic nucleotide-gated channels (CLZ)	C-terminal leucine zipper domain of cyclic nucleotide-gated channels	-	Coiled-coil
B [auth A], C [auth B], D [auth C]	PF00027	Cyclic nucleotide-binding domain (cNMP_binding)	Cyclic nucleotide-binding domain	This domain sensor domain can bind cAMP, cGMP, c-di-GMP, oxygen and 2-oxoglutarate (Matilla et. al., FEMS Microbiology Reviews, fuab043, 45, 2021, 1. https://doi.org/10.1093/femsre/fuab043).	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A [auth D]	Cyclic nucleotide-gated cation channel beta-1	guanyl nucleotide binding binding cyclic nucleotide binding nucleotide binding guanyl ribonucleotide binding purine ribonucleotide binding nucleoside phosphate binding ion binding purine nucleotide binding organic cyclic compound binding anion binding heterocyclic compound binding carbohydrate derivative binding ribonucleotide binding guanyl nucleotide binding binding cyclic nucleotide binding nucleotide binding guanyl ribonucleotide binding purine ribonucleotide binding nucleoside phosphate binding ion binding purine nucleotide binding organic cyclic compound binding anion binding heterocyclic compound binding carbohydrate derivative binding ribonucleotide binding cGMP binding small molecule binding identical protein binding protein binding protein homodimerization activity protein dimerization activity adenyl ribonucleotide binding cAMP binding adenyl nucleotide binding protein-containing complex binding molecular sequestering activity molecular adaptor activity 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 intracellularly cGMP-activated cation channel activity	multicellular organismal process multicellular organismal-level homeostasis homeostatic process anatomical structure homeostasis tissue homeostasis retina homeostasis regulation of cellular process cellular biosynthetic process positive regulation of biological process positive regulation of cellular metabolic process positive regulation of macromolecule biosynthetic process positive regulation of metabolic process positive regulation of biosynthetic process positive regulation of macromolecule metabolic process multicellular organismal process multicellular organismal-level homeostasis homeostatic process anatomical structure homeostasis tissue homeostasis retina homeostasis regulation of cellular process cellular biosynthetic process positive regulation of biological process positive regulation of cellular metabolic process positive regulation of macromolecule biosynthetic process positive regulation of metabolic process positive regulation of biosynthetic process positive regulation of macromolecule metabolic process positive regulation of cellular process regulation of biosynthetic process regulation of biological process cellular metabolic process biological regulation regulation of cellular metabolic process regulation of macromolecule metabolic process gene expression macromolecule biosynthetic process regulation of cellular biosynthetic process regulation of gene expression biosynthetic process positive regulation of gene expression regulation of macromolecule biosynthetic process metabolic process cellular process macromolecule metabolic process regulation of metabolic process positive regulation of cellular biosynthetic process system process sensory perception of chemical stimulus sensory perception nervous system process sensory perception of smell response to stimulus localization transport monoatomic ion transport monoatomic cation transport establishment of localization sodium ion transport metal ion transport sensory perception of light stimulus visual perception monoatomic cation transmembrane transport transmembrane transport monoatomic ion transmembrane transport calcium ion transport	cell periphery plasma membrane membrane cellular anatomical entity intracellular anatomical structure cytoplasm protein-containing complex membrane-bounded organelle non-motile cilium 9+0 non-motile cilium cilium neuron projection photoreceptor outer segment plasma membrane bounded cell projection cell periphery plasma membrane membrane cellular anatomical entity intracellular anatomical structure cytoplasm protein-containing complex membrane-bounded organelle non-motile cilium 9+0 non-motile cilium cilium neuron projection photoreceptor outer segment plasma membrane bounded cell projection cell projection photoreceptor cell cilium organelle ciliary membrane photoreceptor outer segment membrane bounding membrane of organelle plasma membrane region organelle membrane cell projection membrane intracellular cyclic nucleotide activated cation channel complex transmembrane transporter complex membrane protein complex cation channel complex transporter complex monoatomic ion channel complex
B [auth A], C [auth B], D [auth C]	cGMP-gated cation channel alpha-1	protein-containing complex binding 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 protein-containing complex binding 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 guanyl nucleotide binding cyclic nucleotide binding nucleotide binding guanyl ribonucleotide binding purine ribonucleotide binding nucleoside phosphate binding ion binding purine nucleotide binding organic cyclic compound binding anion binding heterocyclic compound binding carbohydrate derivative binding ribonucleotide binding cGMP binding small molecule binding intracellularly cGMP-activated cation channel activity	localization transport monoatomic ion transport monoatomic cation transport establishment of localization sodium ion transport metal ion transport multicellular organismal process sensory perception of light stimulus system process sensory perception nervous system process visual perception monoatomic cation transmembrane transport localization transport monoatomic ion transport monoatomic cation transport establishment of localization sodium ion transport metal ion transport multicellular organismal process sensory perception of light stimulus system process sensory perception nervous system process visual perception monoatomic cation transmembrane transport transmembrane transport monoatomic ion transmembrane transport cellular process calcium ion transport response to stimulus	protein-containing complex transmembrane transporter complex membrane membrane protein complex cellular anatomical entity transporter complex cell periphery plasma membrane intracellular cyclic nucleotide activated cation channel complex cation channel complex monoatomic ion channel complex membrane-bounded organelle non-motile cilium 9+0 non-motile cilium protein-containing complex transmembrane transporter complex membrane membrane protein complex cellular anatomical entity transporter complex cell periphery plasma membrane intracellular cyclic nucleotide activated cation channel complex cation channel complex monoatomic ion channel complex membrane-bounded organelle non-motile cilium 9+0 non-motile cilium cilium neuron projection photoreceptor outer segment plasma membrane bounded cell projection cell projection photoreceptor cell cilium organelle
E	calmodulin-1	-	-	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A [auth D]	IPR014710	RmlC-like jelly roll fold	Homologous Superfamily
A [auth D]	IPR018488	Cyclic nucleotide-binding, conserved site	Conserved Site
A [auth D]	IPR005821	Ion transport domain	Domain
A [auth D]	IPR000595	Cyclic nucleotide-binding domain	Domain
A [auth D]	IPR018490	Cyclic nucleotide-binding domain superfamily	Homologous Superfamily
B [auth A], C [auth B], D [auth C]	IPR005821	Ion transport domain	Domain
B [auth A], C [auth B], D [auth C]	IPR000595	Cyclic nucleotide-binding domain	Domain
B [auth A], C [auth B], D [auth C]	IPR032406	Cyclic nucleotide-gated channel, C-terminal leucine zipper domain	Domain
B [auth A], C [auth B], D [auth C]	IPR014710	RmlC-like jelly roll fold	Homologous Superfamily
B [auth A], C [auth B], D [auth C]	IPR018488	Cyclic nucleotide-binding, conserved site	Conserved Site
B [auth A], C [auth B], D [auth C]	IPR018490	Cyclic nucleotide-binding domain superfamily	Homologous Superfamily

Membrane Protein Annotation: OPM OPM Database Homepage

Chains	External Link	Type	Class	Superfamily	Family
A [auth D], B [auth A], C [auth B], D [auth C]	OPM	Transmembrane	Alpha-helical polytopic	Ion channel (VIC) superfamily	Cyclic nucleotide-gated ion channel

Membrane Protein Annotation: PDBTM PDBTM Database Homepage

Chains	External Link	Comment
A [auth D], B [auth A], C [auth B], D [auth C]	PDBTM	Annotated as membrane protein by PDBTM

Membrane Protein Annotation: mpstruc mpstruc Database Homepage

Chains	Resource Link	Group	Subgroup	Protein
A [auth D], B [auth A], C [auth B], D [auth C]	mpstruc	TRANSMEMBRANE PROTEINS: ALPHA-HELICAL	Channels: Potassium, Sodium, & Proton Ion-Selective	photoreceptor Cyclic-nucleotide-gated (CNGA1/B1) heterotetrameric channel with bound calmodulin

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 R01GM133198.