Q62398 (CNGA2_MOUSE) Reviewed, UniProtKB/Swiss-Prot
Last modified
May 1, 2013.
Version 106.
History...
Names·Attributes·General annotation·Ontologies·Sequence annotation·Sequences·References·Cross-refs·Entry info·DocumentsCustomize order
Names·Attributes·General annotation·Ontologies·Sequence annotation·Sequences·References·Cross-refs·Entry info·DocumentsCustomize orderNames and origin
| Protein names | Recommended name: Cyclic nucleotide-gated olfactory channel Alternative name(s): Cyclic nucleotide-gated cation channel 2 Cyclic nucleotide-gated channel alpha-2 Short name=CNG channel alpha-2 Short name=CNG-2 Short name=CNG2 | ||||
| Gene names |
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| Organism | Mus musculus (Mouse) [Reference proteome] | ||||
| Taxonomic identifier | 10090 [NCBI] | ||||
| Taxonomic lineage | Eukaryota › Metazoa › Chordata › Craniata › Vertebrata › Euteleostomi › Mammalia › Eutheria › Euarchontoglires › Glires › Rodentia › Sciurognathi › Muroidea › Muridae › Murinae › Mus › Mus![]() |
Protein attributes
| Sequence length | 664 AA. |
| Sequence status | Complete. |
| Protein existence | Evidence at transcript level |
General annotation (Comments)
| Function | Odorant 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. |
| Subunit structure | Heterotetramer composed of two subunits of CNGA2, one of CNGA4 and one of CNGB1b. The complex forms the cyclic nucleotide-gated (CNG) channel of olfactory sensory neurons By similarity. |
| Subcellular location | |
| Domain | The C-terminal coiled-coil domain mediates trimerization of CNGA subunits By similarity. |
| Sequence similarities | Belongs to the cyclic nucleotide-gated cation channel (TC 1.A.1.5) family. CNGA2 subfamily. [View classification] Contains 1 cyclic nucleotide-binding domain. |
| Caution | It is uncertain whether Met-1 or Met-2 is the initiator. |
Ontologies
| Keywords | |
|---|---|
| Biological process | Ion transport Olfaction Sensory transduction Transport |
| Cellular component | Membrane |
| Domain | Coiled coil Transmembrane Transmembrane helix |
| Ligand | Calmodulin-binding Nucleotide-binding cAMP cAMP-binding |
| Molecular function | Ion channel Ligand-gated ion channel |
| PTM | Glycoprotein |
| Technical term | Complete proteome Reference proteome |
| Gene Ontology (GO) | |
| Biological_process | response to stimulus Inferred from electronic annotation. Source: UniProtKB-KW sensory perception of smellInferred from mutant phenotype PubMed 10798394. Source: MGI |
| Cellular_component | integral to membrane Inferred from electronic annotation. Source: UniProtKB-KW |
| Molecular_function | cAMP binding Inferred from electronic annotation. Source: UniProtKB-KW ion channel activityInferred from mutant phenotype PubMed 10798394. Source: MGI voltage-gated potassium channel activityInferred from electronic annotation. Source: InterPro |
| Complete GO annotation... | |
Sequence annotation (Features)
| Feature key | Position(s) | Length | Description | Graphical view | Feature identifier | ||||
Molecule processing | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Chain | 1 – 664 | 664 | Cyclic nucleotide-gated olfactory channel | PRO_0000219313 | |||||
Regions | |||||||||
| Topological domain | 1 – 142 | 142 | Cytoplasmic Potential | ||||||
| Transmembrane | 143 – 163 | 21 | Helical; Name=H1; Potential | ||||||
| Topological domain | 164 – 175 | 12 | Extracellular Potential | ||||||
| Transmembrane | 176 – 194 | 19 | Helical; Name=H2; Potential | ||||||
| Topological domain | 195 – 218 | 24 | Cytoplasmic Potential | ||||||
| Transmembrane | 219 – 238 | 20 | Helical; Name=H3; Potential | ||||||
| Topological domain | 239 – 276 | 38 | Extracellular Potential | ||||||
| Transmembrane | 277 – 299 | 23 | Helical; Name=H4; Potential | ||||||
| Topological domain | 300 – 351 | 52 | Cytoplasmic Potential | ||||||
| Transmembrane | 352 – 371 | 20 | Helical; Name=H5; Potential | ||||||
| Topological domain | 372 – 455 | 84 | Extracellular Potential | ||||||
| Transmembrane | 456 – 476 | 21 | Helical; Name=H6; Potential | ||||||
| Topological domain | 477 – 664 | 188 | Cytoplasmic Potential | ||||||
| Nucleotide binding | 464 – 586 | 123 | cAMP By similarity | ||||||
| Coiled coil | 599 – 642 | 44 | By similarity | ||||||
Sites | |||||||||
| Binding site | 523 | 1 | cAMP Potential | ||||||
| Binding site | 538 | 1 | cAMP Potential | ||||||
Amino acid modifications | |||||||||
| Glycosylation | 381 | 1 | N-linked (GlcNAc...) Potential | ||||||
Experimental info | |||||||||
| Sequence conflict | 110 | 1 | T → P in AAC52712. Ref.1 | ||||||
| Sequence conflict | 355 | 1 | V → F in AAC52712. Ref.1 | ||||||
| Sequence conflict | 540 – 541 | 2 | AN → GT in AAC52712. Ref.1 | ||||||
Sequences
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References
| « Hide 'large scale' references | |
| [1] | "Cloning and characterization of an olfactory cyclic nucleotide-gated channel expressed in mouse heart." Ruiz M.L., London B., Nadal-Ginard B. J. Mol. Cell. Cardiol. 28:1453-1461(1996) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [GENOMIC DNA]. Tissue: Heart. |
| [2] | "The transcriptional landscape of the mammalian genome." Carninci P., Kasukawa T., Katayama S., Gough J., Frith M.C., Maeda N., Oyama R., Ravasi T., Lenhard B., Wells C., Kodzius R., Shimokawa K., Bajic V.B., Brenner S.E., Batalov S., Forrest A.R., Zavolan M., Davis M.J. Hayashizaki Y.Science 309:1559-1563(2005) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA]. |
| [3] | Mural R.J., Adams M.D., Myers E.W., Smith H.O., Venter J.C. Submitted (JUL-2005) to the EMBL/GenBank/DDBJ databases Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. |
| [4] | "The status, quality, and expansion of the NIH full-length cDNA project: the Mammalian Gene Collection (MGC)." The MGC Project Team Genome Res. 14:2121-2127(2004) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA]. Tissue: Olfactory epithelium. |
| + | Additional computationally mapped references. |
Cross-references
Sequence databases | |
|---|---|
| EMBL GenBank DDBJ | U49391 Genomic DNA. Translation: AAC52712.1. AK132574 mRNA. Translation: BAE21237.1. CH466624 Genomic DNA. Translation: EDL26564.1. BC048775 mRNA. Translation: AAH48775.1. |
| IPI | IPI00330727. |
| RefSeq | NP_031750.2. NM_007724.2. |
| UniGene | Mm.5097. |
3D structure databases | |
| ProteinModelPortal | Q62398. |
| SMR | Q62398. Positions 326-371, 381-573, 599-642. |
| ModBase | Search... |
Protein-protein interaction databases | |
| STRING | 10090.ENSMUSP00000006020. |
Protein family/group databases | |
| TCDB | 1.A.1.5.4. voltage-gated ion channel (VIC) superfamily. |
PTM databases | |
| PhosphoSite | Q62398. |
Proteomic databases | |
| PRIDE | Q62398. |
Protocols and materials databases | |
| StructuralBiologyKnowledgebase | Search... |
Genome annotation databases | |
| Ensembl | ENSMUST00000006020; ENSMUSP00000006020; ENSMUSG00000005864. |
| GeneID | 12789. |
| KEGG | mmu:12789. |
Organism-specific databases | |
| CTD | 1260. |
| MGI | MGI:108040. Cnga2. |
Phylogenomic databases | |
| eggNOG | NOG300025. |
| GeneTree | ENSGT00550000074376. |
| HOGENOM | HOG000007898. |
| HOVERGEN | HBG000281. |
| InParanoid | Q80XH6. |
| KO | K04949. |
| OrthoDB | EOG4N5VWD. |
Gene expression databases | |
| Bgee | Q62398. |
| CleanEx | MM_CNGA2. |
| Genevestigator | Q62398. |
| GermOnline | ENSMUSG00000005864. Mus musculus. |
Family and domain databases | |
| Gene3D | 2.60.120.10. 1 hit. |
| InterPro | IPR018490. cNMP-bd-like. IPR018488. cNMP-bd_CS. IPR000595. cNMP-bd_dom. IPR005821. Ion_trans_dom. IPR003938. K_chnl_volt-dep_EAG/ELK/ERG. IPR014710. RmlC-like_jellyroll. [Graphical view] |
| Pfam | PF00027. cNMP_binding. 1 hit. PF00520. Ion_trans. 1 hit. [Graphical view] |
| PRINTS | PR01463. EAGCHANLFMLY. |
| SMART | SM00100. cNMP. 1 hit. [Graphical view] |
| SUPFAM | SSF51206. cNMP_binding. 1 hit. |
| PROSITE | PS00888. CNMP_BINDING_1. 1 hit. PS00889. CNMP_BINDING_2. 1 hit. PS50042. CNMP_BINDING_3. 1 hit. [Graphical view] |
| ProtoNet | Search... |
Other | |
| NextBio | 282190. |
| SOURCE | Search... |
Entry information
| Entry name | CNGA2_MOUSE | ||||||||
| Accession | Primary (citable) accession number: Q62398 Secondary accession number(s): Q80XH6 | ||||||||
| Entry history |
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| Entry status | Reviewed (UniProtKB/Swiss-Prot) | ||||||||
| Annotation program | Chordata Protein Annotation Program | ||||||||
Relevant documents
| MGD cross-references Mouse Genome Database (MGD) cross-references in UniProtKB/Swiss-Prot |
| SIMILARITY comments Index of protein domains and families |

Clusters with
