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Aqp9 - aquaporin 9 (Norway rat)

Gene
Symbol
Dates
  • Create:
    2016-09-14
  • Modify:
    2025-01-15
Description
Enables several functions, including nucleobase transmembrane transporter activity; urea transmembrane transporter activity; and water channel activity. Involved in several processes, including canalicular bile acid transport; nucleobase transport; and response to pain. Located in basolateral plasma membrane. Orthologous to human AQP9 (aquaporin 9).

1 Names and Identifiers

1.1 Synonyms

  • aquaporin-9
  • AQP-9
  • aquaglyceroporin-9
  • neutral solute channel aquaporin 9

1.2 Other Identifiers

1.2.1 Ensembl ID

1.2.2 Alliance Gene ID

1.2.3 Bgee Gene ID

1.2.4 RGD ID

1.2.5 Wikidata

3 Proteins

3.1 Protein Function

Aquaglyceroporins form homotetrameric transmembrane channels, with each monomer independently mediating glycerol and water transport across the plasma membrane along their osmotic gradient (PMID: 10205677, PMID: 9733774). AQP9 is the primary route for glycerol uptake in hepatocytes, supporting hepatic gluconeogenesis (By similarity). It exhibits broad specificity and may transport various small, non-charged solutes, including carbamides, polyols, purines, and pyrimidines (PMID: 9733774). AQP9 may also facilitate hepatic urea extrusion. Due to its permeability to lactate, AQP9 might participate in the astrocyte-to-neuron lactate shuttle, supplying neurons with energy. Additionally, AQP9 is permeable to arsenite, contributing to arsenic excretion by the liver and providing partial protection against arsenic toxicity (PMID: 11972053). It is also permeable to H2O2 in vivo (By similarity). Could also be permeable to ammonium (PMID: 15988592).

3.2 Protein 3D Structures

3.2.1 AlphaFold Structures

Highly accurate protein structure prediction with AlphaFold. Nature. 2021 Aug;596(7873):583-589. DOI:10.1038/s41586-021-03819-2. PMID:34265844; PMCID:PMC8371605

3.3 Protein Targets

4 Interactions and Pathways

4.1 Interactions

4.2 Pathways

5 Biochemical Reactions

6 Expression

7 Literature

7.1 Gene-Chemical Co-Occurrences in Literature

7.2 Gene-Gene Co-Occurrences in Literature

7.3 Gene-Disease Co-Occurrences in Literature

8 Patents

8.1 Gene-Chemical Co-Occurrences in Patents

8.2 Gene-Gene Co-Occurrences in Patents

8.3 Gene-Disease Co-Occurrences in Patents

9 Information Sources

  1. NCBI Gene
    LICENSE
    NCBI Website and Data Usage Policies and Disclaimers
    https://www.ncbi.nlm.nih.gov/home/about/policies/
  2. PubChem
  3. Alliance of Genome Resources
    LICENSE
    All annotations and data produced by Alliance members that are accessible from alliancegenome.org are distributed under a CC BY 4.0 license (https://creativecommons.org/licenses/by/4.0/).
    https://www.alliancegenome.org/privacy-warranty-licensing
  4. NCBI Gene Expression Omnibus (GEO)
  5. Rat Genome Database (RGD)
    LICENSE
    Creative Commons Attribution 4.0 International license (CC BY 4.0)
    https://creativecommons.org/licenses/by/4.0/
  6. STRING: functional protein association networks
  7. Swiss Institute of Bioinformatics Bgee
    LICENSE
    Creative Commons Zero license (CC0)
    https://www.bgee.org/about/
  8. UniProt
    LICENSE
    We have chosen to apply the Creative Commons Attribution (CC BY 4.0, http://creativecommons.org/licenses/by/4.0/) License to all copyrightable parts of our databases.
    https://www.uniprot.org/help/license
  9. Wikidata
  10. AlphaFold DB
    LICENSE
    All of the data provided is freely available for both academic and commercial use under Creative Commons Attribution 4.0 (CC-BY 4.0) licence terms.
    https://alphafold.ebi.ac.uk/faq
  11. Rhea - annotated reactions database
    LICENSE
    Rhea has chosen to apply the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/). This means that you are free to copy, distribute, display and make commercial use of the database in all legislations, provided you credit (cite) Rhea.
    https://www.rhea-db.org/help/license-disclaimer
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