Entrez Summary: This gene encodes a member of the aquaporin family of water-selective membrane channels. The encoded protein localizes to the plasma membrane and allows movement of water, glycerol and urea across cell membranes. This gene is highly expressed in the adipose tissue where the encoded protein facilitates efflux of glycerol. In the proximal straight tubules of kidney, the encoded protein is localized to the apical membrane and prevents excretion of glycerol into urine. The encoded protein is present in spermatids, as well as in the testicular and epididymal spermatozoa suggesting an important role in late spermatogenesis. Alternative splicing of this gene results in multiple transcript variants encoding different isoforms. This gene is located adjacent to a related aquaporin gene on chromosome 9. Multiple pseudogenes of this gene have been identified. [provided by RefSeq, Dec 2015].
UniProt Summary: Forms a channel for water and glycerol.
Pfam DomainsGO Terms
Pfam Domains
MIP
GO Terms
glycerol channel activity
glycerol transport
urea transmembrane transporter activity
urea transmembrane transport
urea transport
water channel activity
polyol transport
one-carbon compound transport
water transport
fluid transport
carbohydrate transport
lipid droplet
cell cortex
organic hydroxy compound transport
cytoplasmic vesicle membrane
cell-cell junction
transmembrane transport
integral component of plasma membrane
amide transport
nitrogen compound transport
CRISPR Data
Compound HitMost Correlated Genes in ChemogenomicsTissues where Essential in the Avana Dataset (DepMap 20Q1)
Compound Hit
No hits were found.
Most Correlated Genes in Chemogenomics
No correlation found to any other genes in chemogenomics.
Tissues where Essential in the Avana Dataset (DepMap 20Q1)
Global Fraction of Cell Lines Where Essential: 221/739