Cyclic nucleotide-gated channel alpha 3
Cyclic nucleotide-gated channel alpha 3 (CNGA3) is a protein that in humans is encoded by the CNGA3 gene. This protein is a subunit of a cyclic nucleotide-gated ion channel that plays a crucial role in the phototransduction pathway of the cone photoreceptor cells in the retina.
Function[edit | edit source]
The CNGA3 protein is an integral membrane protein that forms a voltage-independent ion channel activated by the binding of cyclic nucleotides. This ion channel is a complex composed of a homotetramer or a heterotetramer of different subunits, including the alpha-3 subunit. The CNGA3 subunit can bind cyclic GMP and cyclic AMP, and is involved in the depolarization of photoreceptor cells in the retina.
Clinical significance[edit | edit source]
Mutations in the CNGA3 gene are associated with achromatopsia (ACHM2), a rare congenital disorder characterized by the absence of color vision. Patients with ACHM2 have difficulty distinguishing colors, decreased visual acuity, and increased sensitivity to light.
See also[edit | edit source]
References[edit | edit source]
Translate: - East Asian
中文,
日本,
한국어,
South Asian
हिन्दी,
தமிழ்,
తెలుగు,
Urdu,
ಕನ್ನಡ,
Southeast Asian
Indonesian,
Vietnamese,
Thai,
မြန်မာဘာသာ,
বাংলা
European
español,
Deutsch,
français,
Greek,
português do Brasil,
polski,
română,
русский,
Nederlands,
norsk,
svenska,
suomi,
Italian
Middle Eastern & African
عربى,
Turkish,
Persian,
Hebrew,
Afrikaans,
isiZulu,
Kiswahili,
Other
Bulgarian,
Hungarian,
Czech,
Swedish,
മലയാളം,
मराठी,
ਪੰਜਾਬੀ,
ગુજરાતી,
Portuguese,
Ukrainian
Template:Human proteins Template:Genes Template:Vision
External[edit source]
B[edit source]
C[edit source]
D[edit source]
F[edit source]
G[edit source]
I[edit source]
L[edit source]
M[edit source]
P[edit source]
R[edit source]
S[edit source]
U[edit source]
V[edit source]
Navigation: Wellness - Encyclopedia - Health topics - Disease Index - Drugs - World Directory - Gray's Anatomy - Keto diet - Recipes
Search WikiMD
Ad.Tired of being Overweight? Try W8MD's physician weight loss program.
Semaglutide (Ozempic / Wegovy and Tirzepatide (Mounjaro) available.
Advertise on WikiMD
WikiMD is not a substitute for professional medical advice. See full disclaimer.
Credits:Most images are courtesy of Wikimedia commons, and templates Wikipedia, licensed under CC BY SA or similar.Contributors: Prab R. Tumpati, MD