FEATURES

FAMILY

DESCRIPTION

Also known as MIP_HUMAN, MIP, AQP0. 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). Homotetramer (PubMed:24120416). Homooctamer formed by head-to-head interaction between homotetramers from adjoining membranes. Interacts with CALM; one CALM molecule interacts with the cytoplasmic domains of two aquaporins, leading to channel closure (By similarity). Interacts (via C-terminus) with BFSP1 (via C-terminus) in aged lens fiber cells (By similarity).

EXTERNAL LINKS

MIP

Lens fiber major intrinsic protein

MIP

Molecular Synopsis