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Details on Person UniProt:Q3UW12 Cnga4

Class:IdReferenceGeneProduct:224623
_chainChangeLogchain:1-575 added on Fri February 6 2015
_displayNameUniProt:Q3UW12 Cnga4
_timestamp2024-08-09 19:00:05
chainchain:1-575
checksum2E79D58D658D4930
commentFUNCTION Pore-forming subunit of the olfactory cyclic nucleotide-gated channel. Operates in the cilia of olfactory sensory neurons where chemical stimulation of the odorant is converted to an electrical signal. Mediates odorant-induced cAMP-dependent Ca(2+) influx triggering neuron depolarization. The rise of intracellular Ca(2+) levels potentiates the olfactory response by activating Ca(2+)-dependent Cl(-) channels, but it also serves as a negative feedback signal to desensitize the channel for rapid adaptation to odorants. Conducts cGMP- and cAMP-gated ion currents, with permeability for monovalent and divalent cations. Conducts cAMP- and cGMP-gated ion currents, with permeability for monovalent and divalent cations (By similarity) (PubMed:11739959, PubMed:12649326). May conduct nitric oxide-gated Ca(2+) currents relevant to neurons of vomeronasal organ, a system involved in the perception of pheromones (By similarity).CATALYTIC ACTIVITY Ca(2+)(in) = Ca(2+)(out)CATALYTIC ACTIVITY Na(+)(in) = Na(+)(out)CATALYTIC ACTIVITY K(+)(in) = K(+)(out)CATALYTIC ACTIVITY NH4(+)(in) = NH4(+)(out)CATALYTIC ACTIVITY Rb(+)(in) = Rb(+)(out)CATALYTIC ACTIVITY Li(+)(in) = Li(+)(out)CATALYTIC ACTIVITY Cs(+)(in) = Cs(+)(out)ACTIVITY REGULATION Ca(2+)-calmodulin exerts its inhibitory effect in cAMP sensitivity by binding to IQ-like motif of CNGA4 and preferably binds to the channel in the closed state. Inhibition by PIP3 of the CNG channel probably occurs via CGNA2 binding.SUBUNIT The olfactory cyclic nucleotide-gated channel is an heterotetramer composed of CNGA2, CNGA4 and CNGB1b subunits with 2:1:1 stoichiometry.SUBCELLULAR LOCATION Expressed in the olfactory epithelium.DOMAIN The C-terminal coiled-coil domain mediates trimerization of CNGA subunits.SIMILARITY Belongs to the cyclic nucleotide-gated cation channel (TC 1.A.1.5) family. CNGA4 subfamily.
created[InstanceEdit:217385] Schmidt, EE, 2008-03-27 06:23:53
descriptionrecommendedName: Cyclic nucleotide-gated channel alpha-4 shortName: CNG channel alpha-4 shortName evidence="10"CNGa4 alternativeName: Olfactory cyclic nucleotide-gated channel subunit 2 shortName evidence="10"OCNC2
geneNameCnga4
identifierQ3UW12
isSequenceChangedFALSE
keywordAlternative splicing
cAMP
cAMP-binding
Cell membrane
Cell projection
Coiled coil
Ion channel
Ion transport
Ligand-gated ion channel
Membrane
Nucleotide-binding
Olfaction
Reference proteome
Sensory transduction
Transmembrane
Transmembrane helix
Transport
modified[InstanceEdit:354386] Schmidt, EE, 2008-06-18 04:45:12
[InstanceEdit:384350] Kanapin, AA, 2008-11-26 14:00:39
[InstanceEdit:392885] Kanapin, AA, 2009-03-09 12:07:18
[InstanceEdit:400710] Schmidt, EE, 2009-03-25 05:33:35
[InstanceEdit:423310] Kanapin, AA
[InstanceEdit:435478] Kanapin, AA
[InstanceEdit:435871] Kanapin, AA
[InstanceEdit:447347] Kanapin, AA
[InstanceEdit:525883] Kanapin, AA
[InstanceEdit:613449] Kanapin, AA
[InstanceEdit:797602] Kanapin, AA
[InstanceEdit:937368] Yung, CK
[InstanceEdit:1042053] Yung, CK
[InstanceEdit:1220657] Yung, CK
[InstanceEdit:1300696] Yung, CK
[InstanceEdit:1301627] Yung, CK
[InstanceEdit:1551960] Weiser, JD
[InstanceEdit:1995863] Weiser, JD
[InstanceEdit:2132304] Weiser, JD
[InstanceEdit:2265580] Weiser, JD
[InstanceEdit:3445779] Weiser, JD
[InstanceEdit:5433710] Weiser, JD
[InstanceEdit:5618415] Weiser, JD
[InstanceEdit:5634237] Weiser, JD
[InstanceEdit:5673015] Weiser, JD
[InstanceEdit:9037114] Weiser, JD
[InstanceEdit:9627708] Weiser, JD
[InstanceEdit:9637257] Weiser, JD
[InstanceEdit:9657908] Weiser, JD
[InstanceEdit:9676415] Weiser, JD
[InstanceEdit:9852000] Weiser, Joel, 2023-11-03
[InstanceEdit:9917590] Weiser, Joel, 2024-08-09
nameCnga4
referenceDatabase[ReferenceDatabase:2] UniProt
secondaryIdentifierCNGA4_MOUSE
Q08EL1
sequenceLength575
species[Species:48892] Mus musculus
(isoformParent)[ReferenceIsoform:224624] UniProt:Q3UW12-2 Cnga4 [Mus musculus]
[ReferenceIsoform:406724] UniProt:Q3UW12-1 Cnga4 [Mus musculus]
(referenceEntity)[EntityWithAccessionedSequence:9713726] Cnga4 [plasma membrane] [Mus musculus]
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No pathways have been reviewed or authored by UniProt:Q3UW12 Cnga4 (224623)