Ankyrin-1 (ANK1) (ANK1)

Ankyrin-1 (ANK1), also known as erythrocyte ankyrin, is a critical structural protein that serves as a molecular bridge between the plasma membrane and the underlying spectrin-actin cytoskeleton in red blood cells [UniProt: P16157]. It plays a fundamental role in maintaining the mechanical stability and biconcave shape of erythrocytes by anchoring integral membrane proteins, such as the band 3 anion exchanger, to the cytoskeletal network [NCBI Gene: 286]. Mutations in the ANK1 gene are the most frequent cause of hereditary spherocytosis, a condition where red blood cells become spherical and fragile, leading to chronic hemolysis and splenomegaly [OMIM: 612641]. Beyond its erythroid function, ANK1 is expressed in the brain and muscle, and recent epigenetic studies have identified it as a key marker for Alzheimer's disease, with increased DNA methylation correlating with amyloid-beta pathology [PMID: 25129075]. While ANK1 is not currently a target for conventional small-molecule drugs, it is a primary focus for genetic diagnostics and potential gene therapy strategies aimed at correcting red cell membrane defects. Its role in malaria is also significant, as the parasite Plasmodium falciparum interacts with the host's ankyrin complex to remodel the erythrocyte during infection [PMID: 25648204].

Other names

Ankyrin-RErythrocyte ankyrinANK-1Ankyrin 1, erythrocytic

Not applicable