Microtubule-associated protein 2 family (MAP2 family)

Microtubule-associated protein 2 (MAP2) and its related family members, including MAP4 and Tau (MAPT), are essential cytoskeletal proteins that bind to and stabilize microtubules (UniProt: P11137, P27816, P10636). These proteins play a critical role in regulating the architecture and dynamics of the cytoskeleton, which is vital for intracellular transport, cell division, and the maintenance of neuronal morphology (PubMed: 24853871). MAP2 is predominantly expressed in the dendrites of neurons, where it facilitates microtubule assembly and cross-linking with other cytoskeletal elements (PubMed: 10430571). Pathological alterations in these proteins, particularly the hyperphosphorylation and aggregation of Tau, are central to the pathogenesis of neurodegenerative diseases known as tauopathies, such as Alzheimer's disease (PubMed: 30107571). Additionally, MAP4 is involved in cell cycle regulation and has been implicated in cancer progression and resistance to microtubule-targeting agents (PubMed: 15173043). Therapeutic strategies targeting this family include small molecules that prevent protein aggregation, stabilizers of microtubule binding, and agents like estramustine that disrupt MAP-microtubule interactions to inhibit tumor growth (PubChem: CID 3296).

Other names

MAP2/Tau familyMAP2MAP4MAPTTau proteinMicrotubule-associated protein 2Microtubule-associated protein 4Microtubule-associated protein tau

Inhibition of microtubule binding and stabilization, prevention of pathological protein aggregation, and modulation of microtubule dynamics.