PDF

NM_001298:p.Thr450Met

CNGA3
NM_001298:c.1349C>T

Information

Variant Locale EXON8
PubMed ID (no data)
dbSNP ID (no data)

Call

Variation chr2:99012982:C>T
Pathogenicity Possible low penetrance allele
Phenotype

Interpretation

In Silico Computational

SIFT Polyphen-2 LRT MutationTaster PhyloP GERP++
Tolerated Probably Damaging Deleterious Disease Causing Conserved Conserved
0.71 0.91 0 0.995514 2.509 4.81

Variant Frequencies

OtoSCOPE™

(No data)
Alternate Allele Count
Exome Variant Server

(No data)
European American Alternate Allele Count

(No data)
African American Alternate Allele Count
1000 Genomes
European

(No data)
Utah residents, Northern and Western European ancestry

(No data)
Toscani in Italia

(No data)
British from England and Scotland

(No data)
Finnish from Finland

(No data)
Iberian populations in Spain
 
East Asian

(No data)
Han Chinese in Beijing, China

(No data)
Japanese in Toyko, Japan

(No data)
Han Chinese South

(No data)
Chinese Dai in Xishuangbanna

(No data)
Iberian populations in Spain

1/148
Kinh in Ho Chi Minh City, Vietnam
West African

(No data)
Yoruba in Ibadan, Nigeria

(No data)
Luhya in Webuye, Kenya
 
Americas

(No data)
African Ancestry in Southwest US

(No data)
African Caribbean in Barbados

(No data)
Mexican Ancestry in Los Angeles, CA

(No data)
Puerto Rican in Puerto Rico

(No data)
Colombian in Medellin, Colombia

(No data)
Peruvian in Lima, Peru
South Asian

(No data)
Gujarati Indian in Houston, TX
 
 

Published Data

Manual curation in progress. Record generated from: dbNSFP 2. Additional info from dbNSFP 2 -- Gene full name: cyclic nucleotide gated channel alpha 3 | Function description: Visual signal transduction is mediated by a G-protein coupled cascade using cGMP as second messenger. This protein can be activated by cyclic GMP which leads to an opening of the cation channel and thereby causing a depolarization of cone photoreceptors. Induced a flickering channel gating, weakened the outward rectification in the presence of extracellular calcium, increased sensitivity for L-cis diltiazem and enhanced the cAMP efficacy of the channel when coexpressed with CNGB3 (By similarity). Essential for the generation of light-evoked electrical responses in the red-, green- and blue sensitive cones. | Disease description: Note=Defects in CNGA3 may be a cause of Leber congenital amaurosis (LCA), a severe dystrophy of the retina, typically becoming evident in the first years of life. Visual function is usually poor and often accompanied by nystagmus, sluggish or near- absent pupillary responses, photophobia, high hyperopia and keratoconus.

http://vvd.eng.uiowa.edu/variant/1671
© 2011–2017 The Institute for Vision Research at The University of Iowa