Entrez Summary: Major intrinsic protein is a member of the water-transporting aquaporins as well as the original member of the MIP family of channel proteins. The function of the fiber cell membrane protein encoded by this gene is undetermined, yet this protein is speculated to play a role in intracellular communication. The MIP protein is expressed in the ocular lens and is required for correct lens function. This gene has been mapped among aquaporins AQP2, AQP5, and AQP6, in a potential gene cluster at 12q13. [provided by RefSeq, Jul 2008].
UniProt Summary: Water channel (PubMed:24120416). Channel activity is down-regulated by CALM when cytoplasmic Ca(2+) levels are increased. May be responsible for regulating the osmolarity of the lens. Interactions between homotetramers from adjoining membranes may stabilize cell junctions in the eye lens core (By similarity). Plays a role in cell-to-cell adhesion and facilitates gap junction coupling (PubMed:24120416). {ECO:0000250|UniProtKB:Q6J8I9, ECO:0000269|PubMed:24120416}.
Pfam DomainsGO Terms
Pfam Domains
MIP
GO Terms
gap junction-mediated intercellular transport
intercellular transport
water channel activity
gap junction
water transport
structural constituent of eye lens
fluid transport
lens development in camera-type eye
protein homotetramerization
protein tetramerization
calmodulin binding
visual perception
sensory perception of light stimulus
camera-type eye development
apical plasma membrane
protein homooligomerization
eye development
visual system development
sensory system development
positive regulation of cell adhesion
protein complex oligomerization
sensory organ development
regulation of cell adhesion
sensory perception
endoplasmic reticulum
transmembrane transport
nervous system process
integral component of plasma membrane
protein-containing complex assembly
protein-containing complex subunit organization
system process
CRISPR Data
Compound HitMost Correlated Genes in ChemogenomicsTissues where Essential in the Avana Dataset (DepMap 20Q1)