NameCyclic nucleotide-gated olfactory channel
Synonyms
  • CNCA
  • CNCA1
  • CNCG2
  • CNG channel alpha-2
  • CNG-2
  • CNG2
  • Cyclic nucleotide-gated cation channel 2
  • Cyclic nucleotide-gated channel alpha-2
Gene NameCNGA2
OrganismHuman
Amino acid sequence
>lcl|BSEQ0017677|Cyclic nucleotide-gated olfactory channel
MTEKTNGVKSSPANNHNHHAPPAIKANGKDDHRTSSRPHSAADDDTSSELQRLADVDAPQ
QGRSGFRRIVRLVGIIREWANKNFREEEPRPDSFLERFRGPELQTVTTQEGDGKGDKDGE
DKGTKKKFELFVLDPAGDWYYCWLFVIAMPVLYNWCLLVARACFSDLQKGYYLVWLVLDY
VSDVVYIADLFIRLRTGFLEQGLLVKDTKKLRDNYIHTLQFKLDVASIIPTDLIYFAVDI
HSPEVRFNRLLHFARMFEFFDRTETRTNYPNIFRISNLVLYILVIIHWNACIYYAISKSI
GFGVDTWVYPNITDPEYGYLAREYIYCLYWSTLTLTTIGETPPPVKDEEYLFVIFDFLIG
VLIFATIVGNVGSMISNMNATRAEFQAKIDAVKHYMQFRKVSKGMEAKVIRWFDYLWTNK
KTVDEREILKNLPAKLRAEIAINVHLSTLKKVRIFHDCEAGLLVELVLKLRPQVFSPGDY
ICRKGDIGKEMYIIKEGKLAVVADDGVTQYALLSAGSCFGEISILNIKGSKMGNRRTANI
RSLGYSDLFCLSKDDLMEAVTEYPDAKKVLEERGREILMKEGLLDENEVATSMEVDVQEK
LGQLETNMETLYTRFGRLLAEYTGAQQKLKQRITVLETKMKQNNEDDYLSDGMNSPELAA
ADEP
Number of residues664
Molecular Weight76047.505
Theoretical pINot Available
GO Classification
Functions
  • cAMP binding
  • intracellular cGMP activated cation channel activity
  • voltage-gated potassium channel activity
  • cGMP binding
Processes
  • phototransduction, visible light
  • potassium ion transmembrane transport
  • organelle organization
  • regulation of membrane potential
  • sensory perception of smell
Components
  • integral component of plasma membrane
  • Golgi membrane
  • ciliary membrane
  • Golgi-associated vesicle membrane
General FunctionVoltage-gated potassium channel activity
Specific FunctionOdorant signal transduction is probably mediated by a G-protein coupled cascade using cAMP as second messenger. The olfactory channel can be shown to be activated by cyclic nucleotides which leads to a depolarization of olfactory sensory neurons.
Pfam Domain Function
Transmembrane Regions139-159 172-192 225-245 275-295 351-371 454-474
GenBank Protein IDNot Available
UniProtKB IDQ16280
UniProtKB Entry NameCNGA2_HUMAN
Cellular LocationMembrane
Gene sequence
>lcl|BSEQ0017678|Cyclic nucleotide-gated olfactory channel (CNGA2)
ATGACCGAAAAAACCAATGGTGTGAAGAGCTCCCCAGCCAATAATCACAACCATCATGCA
CCTCCTGCCATCAAGGCCAATGGCAAAGATGACCACAGGACAAGCAGCAGGCCACACTCT
GCAGCTGACGATGACACCTCCTCAGAACTGCAGAGGCTGGCAGACGTGGATGCCCCACAG
CAGGGAAGGAGTGGCTTCCGCAGGATAGTTCGCCTGGTGGGGATCATCAGAGAATGGGCC
AACAAGAATTTCCGAGAGGAGGAACCTAGGCCTGACTCATTCCTCGAGCGTTTTCGTGGG
CCTGAACTCCAGACTGTGACCACACAGGAGGGGGATGGCAAAGGCGACAAGGATGGCGAG
GACAAAGGCACCAAGAAGAAATTTGAACTATTTGTCTTGGACCCAGCTGGGGATTGGTAC
TACTGCTGGCTATTTGTCATTGCCATGCCCGTCCTTTACAACTGGTGCCTGCTGGTGGCC
AGAGCCTGCTTCAGTGACCTACAGAAAGGCTACTACCTGGTGTGGCTGGTGCTGGATTAT
GTCTCAGATGTGGTCTACATTGCGGACCTCTTCATCCGATTGCGCACAGGTTTCCTGGAG
CAGGGGCTGCTGGTCAAAGATACCAAGAAACTGCGAGACAACTACATCCACACCCTGCAG
TTCAAGCTGGATGTGGCTTCCATCATCCCCACTGACCTGATCTATTTTGCTGTGGACATC
CACAGCCCTGAGGTGCGCTTCAACCGCCTGCTGCACTTTGCCCGCATGTTTGAGTTCTTT
GACCGGACAGAGACACGCACCAACTACCCTAACATCTTCCGCATCAGCAACCTTGTCCTC
TACATCTTGGTCATCATCCACTGGAATGCCTGCATCTATTATGCCATCTCCAAATCCATA
GGCTTTGGGGTCGACACCTGGGTTTACCCAAACATCACTGACCCTGAGTATGGCTACCTG
GCTAGGGAATACATCTATTGCCTTTACTGGTCCACACTGACTCTCACTACCATTGGGGAG
ACACCACCCCCTGTAAAGGATGAGGAGTACCTATTTGTCATCTTTGACTTCCTGATTGGC
GTCCTCATCTTTGCCACCATCGTGGGAAATGTGGGCTCCATGATCTCCAACATGAATGCC
ACCCGGGCAGAGTTCCAGGCTAAGATCGATGCCGTGAAACACTACATGCAGTTCCGAAAG
GTCAGCAAGGGGATGGAAGCCAAGGTCATTAGGTGGTTTGACTACTTGTGGACCAATAAG
AAGACAGTGGATGAGCGAGAAATTCTCAAGAATCTGCCAGCCAAGCTCAGGGCTGAGATA
GCCATCAATGTCCACTTGTCCACACTCAAGAAAGTGCGCATCTTCCATGATTGTGAGGCT
GGCCTGCTGGTAGAGCTGGTACTGAAACTCCGTCCTCAGGTCTTCAGTCCTGGGGATTAC
ATTTGCCGCAAAGGGGACATCGGCAAGGAGATGTACATCATTAAGGAGGGCAAACTGGCA
GTGGTGGCTGATGATGGTGTGACTCAGTATGCTCTGCTGTCGGCTGGAAGCTGCTTTGGC
GAGATCAGTATCCTTAACATTAAGGGCAGTAAAATGGGCAATCGACGCACAGCTAATATC
CGCAGCCTGGGCTACTCAGATCTCTTCTGCTTGTCCAAGGATGATCTTATGGAAGCTGTG
ACTGAGTACCCTGATGCCAAGAAAGTCCTAGAAGAGAGGGGTCGGGAGATCCTCATGAAG
GAGGGACTGCTGGATGAGAACGAAGTGGCAACCAGCATGGAGGTCGACGTGCAGGAGAAG
CTAGGGCAGCTGGAGACCAACATGGAAACCTTGTACACTCGCTTTGGCCGCCTGCTGGCT
GAGTACACGGGGGCCCAGCAGAAGCTCAAGCAGCGCATCACAGTTCTGGAAACCAAGATG
AAACAGAACAATGAAGATGACTACCTGTCTGATGGGATGAACAGCCCTGAGCTGGCTGCT
GCTGACGAGCCATAA
GenBank Gene IDNot Available
GeneCard IDNot Available
GenAtlas IDNot Available
HGNC IDHGNC:2149
Chromosome LocationX
LocusNot Available
References
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  2. Distler M, Biel M, Flockerzi V, Hofmann F: Expression of cyclic nucleotide-gated cation channels in non-sensory tissues and cells. Neuropharmacology. 1994 Nov;33(11):1275-82. 7532814
  3. Sjoblom T, Jones S, Wood LD, Parsons DW, Lin J, Barber TD, Mandelker D, Leary RJ, Ptak J, Silliman N, Szabo S, Buckhaults P, Farrell C, Meeh P, Markowitz SD, Willis J, Dawson D, Willson JK, Gazdar AF, Hartigan J, Wu L, Liu C, Parmigiani G, Park BH, Bachman KE, Papadopoulos N, Vogelstein B, Kinzler KW, Velculescu VE: The consensus coding sequences of human breast and colorectal cancers. Science. 2006 Oct 13;314(5797):268-74. Epub 2006 Sep 7. 16959974