Tchem CNGA3 Cyclic nucleotide-gated cation channel alpha-3

Protein Summary

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. This gene encodes a member of the cyclic nucleotide-gated cation channel protein family which is required for normal vision and olfactory signal transduction. Mutations in this gene are associated with achromatopsia (rod monochromacy) and color blindness. Two alternatively spliced transcripts encoding different isoforms have been described. [provided by RefSeq, Jul 2008]

Uniprot Accession IDs

• Q16281
• E9PF93
• Q4VAP7
• Q53RD2
• Q6ZNA7
• Q9UP64

Gene Name

• CNGA3

Ensembl ID

• ENST00000272602
• ENSP00000272602
• ENSG00000144191
• ENST00000393504
• ENSP00000377140
• ENST00000409937
• ENSP00000386761
• ENST00000436404
• ENSP00000410070

Symbol

• CNCG3
• CNG3
• ACHM2
• CCNC1
• CCNCa
• CNCG3
• CCNCalpha

Knowledge Table

Most Knowledge About	Knowledge Value (0 to 1 scale)
molecular function	1
cellular component	0.85
protein domain	0.73
transcription factor	0.57
biological process	0.56

Protein Classes

DTO Classes

Protein / Ion Channel / Cyclic Nucleotide-gated Cation Channel Family / Cnga3 Subfamily / Cyclic Nucleotide-gated Cation Channel Alpha-3

IDG Development Level Summary

Tdark

These are targets about which virtually nothing is known. They do not have known drug or small molecule activities
- AND - satisfy two or more of the following criteria:

Pubmed score: 157.21   (req: < 5)

Gene RIFs: 53   (req: <= 3)

Antibodies: 108   (req: <= 50)

Tbio

These targets do not have known drug or small molecule activities
- AND - satisfy two or more of the following criteria:

Pubmed score: 157.21   (req: >= 5)

Gene RIFs: 53   (req: > 3)

Antibodies: 108   (req: > 50)

- OR - satisfy the following criterion:

Gene Ontology Terms: 12

Tchem

Target has at least one ChEMBL compound with an activity cutoff of < 30 nM - AND - satisfies the preceding conditions

Active Ligands: 2

Tclin

Target has at least one approved drug - AND - satisfies the preceding conditions

Active Drug: 0