Cyclic nucleotide-gated channel alpha 3

Cyclic nucleotide gated channel alpha 3

Identifiers

CNGA3; ACHM2; CCNC1; CCNCa; CCNCalpha; CNCG3; CNG3

External IDs

OMIM: 600053 MGI: 1341818 HomoloGene: 994 IUPHAR: CNGA3 GeneCards: CNGA3 Gene

Gene Ontology
Molecular function	• nucleotide binding • intracellular cyclic nucleotide activated cation channel activity • ligand-gated ion channel activity • cGMP binding
Cellular component	• photoreceptor outer segment • plasma membrane • integral to membrane
Biological process	• transport • ion transport • signal transduction • visual perception • response to stimulus • transmembrane transport
Sources: Amigo / QuickGO

RNA expression pattern

More reference expression data

Orthologs

Species

Human

Mouse

RefSeq (mRNA)

RefSeq (protein)

Location (UCSC)

Chr 2:
98.96 – 99.02 Mb

Chr 1:
37.28 – 37.32 Mb

PubMed search

[1]

[2]

Cyclic nucleotide-gated cation channel alpha-3 is a protein that in humans is encoded by the CNGA3 gene.^[1]^[2]^[3]^[4]

This gene encodes a member of the cyclic nucleotide-gated cation channel protein family, which is required for normal vision and olfactory signal transduction. Two alternatively-spliced transcripts encoding different isoforms have been described.^[4]

1 Clinical relevance
2 See also
3 References
4 Further reading
5 External Links

Clinical relevance

Variants in this gene have been shown to cause achromatopsia^[5] and color blindness.

References

^ Distler M, Biel M, Flockerzi V, Hofmann F (Mar 1995). "Expression of cyclic nucleotide-gated cation channels in non-sensory tissues and cells". Neuropharmacology 33 (11): 1275–82. doi:10.1016/0028-3908(94)90027-2. PMID 7532814.
^ Wissinger B, Muller F, Weyand I, Schuffenhauer S, Thanos S, Kaupp UB, Zrenner E (Apr 1998). "Cloning, chromosomal localization and functional expression of the gene encoding the alpha-subunit of the cGMP-gated channel in human cone photoreceptors". Eur J Neurosci 9 (12): 2512–21. doi:10.1111/j.1460-9568.1997.tb01680.x. PMID 9517456.
^ Hofmann F, Biel M, Kaupp UB (Dec 2005). "International Union of Pharmacology. LI. Nomenclature and structure-function relationships of cyclic nucleotide-regulated channels". Pharmacol Rev 57 (4): 455–62. doi:10.1124/pr.57.4.8. PMID 16382102.
^ ^a ^b "Entrez Gene: CNGA3 cyclic nucleotide gated channel alpha 3". http://www.ncbi.nlm.nih.gov/sites/entrez?Db=gene&Cmd=ShowDetailView&TermToSearch=1261.
^ Lam, K; Guo, H, Wilson, GA, Kohl, S, Wong, F (2011 Sep). "Identification of Variants in CNGA3 as Cause for Achromatopsia by Exome Sequencing of a Single Patient.". Archives of ophthalmology 129 (9): 1212–7. PMID 21911670.

External Links

This article incorporates text from the United States National Library of Medicine, which is in the public domain.

Membrane transport protein: ion channels (TC 1A)

Ca²⁺: Calcium channel

Voltage-gated	L-type/Ca_vα (1.1, 1.2, 1.3, 1.4) · N-type/Ca_vα2.2 · P-type/Ca_vα(2.1) · Q-type/Ca_vα2.1 · R-type/Ca_vα2.3 · T-type/Ca_vα(3.1, 3.2, 3.3) α₂δ-subunits (1, 2) · β-subunits (β1, β2, β3, β4) · γ-subunits (γ1, γ2, γ3, γ4) Cation channels of sperm (1, 2, 3, 4) · Two-pore channel (1, 2)

Ligand-gated	Inositol trisphosphate receptor (1, 2, 3) · Ryanodine receptor (1, 2, 3)

Na⁺: Sodium channel

Constitutively active	Epithelial sodium channel (α, β, γ, δ)

Proton gated	Amiloride-sensitive cation channel (1, 2, 3, 4)

Voltage-gated	Na_vα (1.1, 1.2, 1.3, 1.4, 1.5, 1.6, 1.7, 1.8, 1.9, 7A) · Na_vβ (1, 2, 3, 4)

K⁺: Potassium channel

Voltage-gated	K_vα1-6 (1.1, 1.2, 1.3, 1.4, 1.5, 1.6, 1.7, 1.8) · (2.1, 2.2) · (3.1, 3.2, 3.3, 3.4) · (4.1, 4.2, 4.3) · (5.1) · (6.1, 6.2, 6.3, 6.4) K_vα7-12 (7.1, 7.2, 7.3, 7.4, 7.5) · (8.1, 8.2) · (9.1, 9.2, 9.3) · (10.1, 10.2) · (11.1/hERG, 11.2, 11.3) · (12.1, 12.2, 12.3) K_vβ (1, 2, 3) · KCNIP (1, 2, 3, 4) · minK/ISK · minK/ISK-like · MiRP (1, 2, 3) · Shaker gene

Calcium-activated	BK channel (α1, β1, β2, β3, β4) · SK channel (SK1, SK2, SK3, SK4) · K_Ca (1.1, 2.1, 2.2, 2.3, 3.1, 4.1, 4.2, 5.1)

Inward-rectifier	K_ATP · K_ir (1.1, 2.1, 2.2, 2.3, 2.4, 2.6) · GIRK/K_ir (3.1, 3.2, 3.3, 3.4) · K_ir (4.1, 4.2, 5.1, 6.1, 6.2, 7.1)

Tandem pore domain	K2P (1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 13, 15, 16, 17, 18)

Other

Cl^-: Chloride channel	ANO1 · Bestrophin (1, 2) · CFTR · CLCA (1, 2, 3, 4) · CLCN (1, 2, 3, 4, 5, 6, 7, KA, KB) · CLIC (1, 2, 3, 4, 5, 6, L1) · CLNS (1A, 1B)

H⁺: Voltage-gated	HVCN1

M⁺: TRP cation channel	TRPA (1) · TRPC (1, 2, 3, 4, 4AP, 5, 6, 7) · TRPM (1, 2, 3, 4, 5, 6, 7, 8) · TRPML (1, 2, 3) · TRPN · TRPP (1, 2) · TRPV (1, 2, 3, 4, 5, 6)

Cyclic nucleotide-gated (FC)	α (1, 2, 3, 4) · β (1, 2, 3) · HCN (1, 2, 3, 4)

Porin	Aquaporin (1, 2, 3, 4, 5, 7, 8, 9) · Voltage-dependent anion channel (1, 2, 3) · General bacterial porin family

Gap junction	Connexin: A (GJA1, GJA3, GJA4, GJA5, GJA8, GJA9, GJA10) · B (GJB1, GJB2, GJB3, GJB4, GJB5, GJB6, GJB7) · C (GJC1, GJC2, GJC3) · D (GJD2, GJD3, GJD4)) Innexin

General	Ligand-gated ion channel · Voltage-gated ion channel · Stretch-activated ion channel

see also disorders
B memb: cead, trns (1A, 1C, 1F, 2A, 3A1, 3A2-3, 3D), othr

Cyclic nucleotide-gated channel alpha 3

Contents

Clinical relevance

See also

References

Further reading

External Links