Identification
HMDB Protein ID CDBP01053
Secondary Accession Numbers Not Available
Name Cyclic nucleotide-gated cation channel alpha-3
Description Not Available
Synonyms
  1. CNG channel alpha-3
  2. CNG-3
  3. CNG3
  4. Cone photoreceptor cGMP-gated channel subunit alpha
  5. Cyclic nucleotide-gated channel alpha-3
Gene Name CNGA3
Protein Type Transporter
Biological Properties
General Function Involved in ion channel activity
Specific Function 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. Essential for the generation of light-evoked electrical responses in the red-, green- and blue sensitive cones
GO Classification
Component
membrane
cell part
Function
transmembrane transporter activity
substrate-specific transmembrane transporter activity
ion transmembrane transporter activity
transporter activity
ion channel activity
Process
establishment of localization
transport
transmembrane transport
ion transport
Cellular Location
  1. Membrane
  2. Multi-pass membrane protein
Pathways
Gene Properties
Chromosome Location Chromosome:2
Locus 2q11.2
SNPs CNGA3
Gene Sequence
>2085 bp
ATGGCCAAGATCAACACCCAATACTCCCACCCCTCCAGGACCCACCTCAAGGTAAAGACC
TCAGACCGAGATCTCAATCGCGCTGAAAATGGCCTCAGCAGAGCCCACTCGTCAAGTGAG
GAGACATCGTCAGTGCTGCAGCCGGGGATCGCCATGGAGACCAGAGGACTGGCTGACTCC
GGGCAGGGCTCCTTCACCGGCCAGGGGATCGCCAGGCTGTCGCGCCTCATCTTCTTGCTG
CGCAGGTGGGCTGCCAGGCATGTGCACCACCAGGACCAGGGACCGGACTCTTTTCCTGAT
CGTTTCCGTGGAGCCGAGCTTAAGGAGGTGTCCAGCCAAGAAAGCAATGCCCAGGCAAAT
GTGGGCAGCCAGGAGCCAGCAGACAGAGGGAGAAGCGCCTGGCCCCTGGCCAAATGCAAC
ACTAACACCAGCAACAACACGGAGGAGGAGAAGAAGACGAAAAAGAAGGATGCGATCGTG
GTGGACCCGTCCAGCAACCTGTACTACCGCTGGCTGACCGCCATCGCCCTGCCTGTCTTC
TATAACTGGTATCTGCTTATTTGCAGGGCCTGTTTCGATGAGCTGCAGTCCGAGTACCTG
ATGCTGTGGCTGGTCCTGGACTACTCGGCAGATGTCCTGTATGTCTTGGATGTGCTTGTA
CGAGCTCGGACAGGTTTTCTCGAGCAAGGCTTAATGGTCAGTGATACCAACAGGCTGTGG
CAGCATTACAAGACGACCACGCAGTTCAAGCTGGATGTGTTGTCCCTGGTCCCCACCGAC
CTGGCTTACTTAAAGGTGGGCACAAACTACCCAGAAGTGAGGTTCAACCGCCTACTGAAG
TTTTCCCGGCTCTTTGAATTCTTTGACCGCACAGAGACAAGGACCAACTACCCCAATATG
TTCAGGATTGGGAACTTGGTCTTGTACATTCTCATCATCATCCACTGGAATGCCTGCATC
TACTTTGCCATTTCCAAGTTCATTGGTTTTGGGACAGACTCCTGGGTCTACCCAAACATC
TCAATCCCAGAGCATGGGCGCCTCTCCAGGAAGTACATTTACAGTCTCTACTGGTCCACC
TTGACCCTTACCACCATTGGTGAGACCCCACCCCCCGTGAAAGATGAGGAGTATCTCTTT
GTGGTCGTAGACTTCTTGGTGGGTGTTCTGATTTTTGCCACCATTGTGGGCAATGTGGGC
TCCATGATCTCGAATATGAATGCCTCACGGGCAGAGTTCCAGGCCAAGATTGATTCCATC
AAGCAGTACATGCAGTTCCGCAAGGTCACCAAGGACTTGGAGACGCGGGTTATCCGGTGG
TTTGACTACCTGTGGGCCAACAAGAAGACGGTGGATGAGAAGGAGGTGCTCAAGAGCCTC
CCAGACAAGCTGAAGGCTGAGATCGCCATCAACGTGCACCTGGACACGCTGAAGAAGGTT
CGCATCTTCCAGGACTGTGAGGCAGGGCTGCTGGTGGAGCTGGTGCTGAAGCTGCGACCC
ACTGTGTTCAGCCCTGGGGATTATATCTGCAAGAAGGGAGATATTGGGAAGGAGATGTAC
ATCATCAACGAGGGCAAGCTGGCCGTGGTGGCTGATGATGGGGTCACCCAGTTCGTGGTC
CTCAGCGATGGCAGCTACTTCGGGGAGATCAGCATTCTGAACATCAAGGGGAGCAAGTCG
GGGAACCGCAGGACGGCCAACATCCGCAGCATTGGCTACTCAGACCTGTTCTGCCTCTCA
AAGGACGATCTCATGGAGGCCCTCACCGAGTACCCCGAAGCCAAGAAGGCCCTGGAGGAG
AAAGGACGGCAGATCCTGATGAAAGACAACCTGATCGATGAGGAGCTGGCCAGGGCGGGC
GCGGACCCCAAGGACCTTGAGGAGAAAGTGGAGCAGCTGGGGTCCTCCCTGGACACCCTG
CAGACCAGGTTTGCACGCCTCCTGGCTGAGTACAACGCCACCCAGATGAAGATGAAGCAG
CGTCTCAGCCAACTGGAAAGCCAGGTGAAGGGTGGTGGGGACAAGCCCCTGGCTGATGGG
GAAGTTCCCGGGGATGCTACAAAAACAGAGGACAAACAACAGTGA
Protein Properties
Number of Residues 694
Molecular Weight 78837.4
Theoretical pI 7.8
Pfam Domain Function
Signals
  • ["None"]
Transmembrane Regions
  • ["171-192", "305-325", "378-397"]
Protein Sequence
>Cyclic nucleotide-gated cation channel alpha-3
MAKINTQYSHPSRTHLKVKTSDRDLNRAENGLSRAHSSSEETSSVLQPGIAMETRGLADS
GQGSFTGQGIARLSRLIFLLRRWAARHVHHQDQGPDSFPDRFRGAELKEVSSQESNAQAN
VGSQEPADRGRSAWPLAKCNTNTSNNTEEEKKTKKKDAIVVDPSSNLYYRWLTAIALPVF
YNWYLLICRACFDELQSEYLMLWLVLDYSADVLYVLDVLVRARTGFLEQGLMVSDTNRLW
QHYKTTTQFKLDVLSLVPTDLAYLKVGTNYPEVRFNRLLKFSRLFEFFDRTETRTNYPNM
FRIGNLVLYILIIIHWNACIYFAISKFIGFGTDSWVYPNISIPEHGRLSRKYIYSLYWST
LTLTTIGETPPPVKDEEYLFVVVDFLVGVLIFATIVGNVGSMISNMNASRAEFQAKIDSI
KQYMQFRKVTKDLETRVIRWFDYLWANKKTVDEKEVLKSLPDKLKAEIAINVHLDTLKKV
RIFQDCEAGLLVELVLKLRPTVFSPGDYICKKGDIGKEMYIINEGKLAVVADDGVTQFVV
LSDGSYFGEISILNIKGSKSGNRRTANIRSIGYSDLFCLSKDDLMEALTEYPEAKKALEE
KGRQILMKDNLIDEELARAGADPKDLEEKVEQLGSSLDTLQTRFARLLAEYNATQMKMKQ
RLSQLESQVKGGGDKPLADGEVPGDATKTEDKQQ
GenBank ID Protein 62988794
UniProtKB/Swiss-Prot ID Q16281
UniProtKB/Swiss-Prot Entry Name CNGA3_HUMAN
PDB IDs Not Available
GenBank Gene ID AC092675
GeneCard ID CNGA3
GenAtlas ID CNGA3
HGNC ID HGNC:2150
References
General References Not Available