I3W9F7 · AQP2_RHIIR

Function

function

Water channel required to facilitate the transport of water across membranes (PubMed:23157494).
Stimulates plant drought tolerance by facilitating the transport of water from the arbuscular mycorrhiza fungus to host plants (PubMed:23157494).

Catalytic activity

Activity regulation

Polyethylene glycol (PEG) stimulates whereas glycerol inhibits the aquaporin activity.

GO annotations

AspectTerm
Cellular Componentplasma membrane
Molecular Functionglycerol channel activity
Molecular Functionwater channel activity

Keywords

Names & Taxonomy

Protein names

  • Recommended name
    Aquaglyceroporin-2

Gene names

    • Name
      AQPF2

Organism names

Accessions

  • Primary accession
    I3W9F7

Organism-specific databases

Subcellular Location

Cell membrane
; Multi-pass membrane protein
Membrane
; Multi-pass membrane protein
Note: Shows a clear localization to the plasma membrane as well as intracellular membranes.

Features

Showing features for topological domain, transmembrane.

TypeIDPosition(s)Description
Topological domain1-59Cytoplasmic
Transmembrane60-80Helical
Topological domain81-86Extracellular
Transmembrane87-107Helical
Topological domain108-131Cytoplasmic
Transmembrane132-152Helical
Topological domain153-187Extracellular
Transmembrane188-208Helical
Topological domain209-219Cytoplasmic
Transmembrane220-240Helical
Topological domain241-271Extracellular
Transmembrane272-292Helical
Topological domain293-316Cytoplasmic

Keywords

PTM/Processing

Features

Showing features for chain, glycosylation.

TypeIDPosition(s)Description
ChainPRO_00004574371-316Aquaglyceroporin-2
Glycosylation172N-linked (GlcNAc...) asparagine

Keywords

Expression

Induction

Expression is increased significantly in arbuscule-enriched cortical cells and extraradical mycelia of maize roots under drought stress.

Structure

Family & Domains

Features

Showing features for region, compositional bias, motif.

TypeIDPosition(s)Description
Region1-31Disordered
Compositional bias9-29Polar residues
Motif114-116NPA 1
Motif246-248NPA 2

Domain

Aquaporins contain two tandem repeats each containing three membrane-spanning domains and a pore-forming loop with the signature motif Asn-Pro-Ala (NPA) (Probable). AQFP2 has NPA/NAA motifs which is in accordance with the fungal aquaporins (NPx and NxA) (Probable).

Sequence similarities

Belongs to the MIP/aquaporin (TC 1.A.8) family.

Keywords

Family and domain databases

Sequence

  • Sequence status
    Complete
  • Length
    316
  • Mass (Da)
    33,968
  • Last updated
    2012-09-05 v1
  • Checksum
    8237070B83F8E7AD
MADERGPINKSGPSSTYGATENNGESGGTRGAPATEDVIVIQDSGWYYIKFRFKEPFAEFLGTFILVAFGVGAIAQTVLSKGATGNWITIALGFGLGLALGIAVSGHYSGGHLNPAVTITLAIYRKFPWVKVPVYITAQVLGAFVAAAVIYLNYLPAIYNFAGDKRDVIGANATAGIFATYPQPFMSIGGAFFSEALGTFFLLFVILAMTDERNVPTTRIVAPITIGLTLTAIAISLGFETGFSLNAARDFGPRLFTFFIGYGVEVFTAYKFYFWIPLVAPIVGGLVAGFVYDSLLYWGEKSFLNKNVHHEHRAVA

Features

Showing features for compositional bias.

TypeIDPosition(s)Description
Compositional bias9-29Polar residues

Sequence databases

Nucleotide SequenceProtein SequenceMolecule TypeStatus
JQ412060
EMBL· GenBank· DDBJ
AFK93203.1
EMBL· GenBank· DDBJ
mRNA

Similar Proteins

Disclaimer

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