FEATURES

FAMILY

DESCRIPTION

Also known as TPX2_HUMAN, TPX2, C20orf1, C20orf2, DIL2, HCA519. Spindle assembly factor required for normal assembly of mitotic spindles. Required for normal assembly of microtubules during apoptosis. Required for chromatin and/or kinetochore dependent microtubule nucleation. Mediates AURKA localization to spindle microtubules (PubMed:18663142, PubMed:19208764). Activates AURKA by promoting its autophosphorylation at 'Thr-288' and protects this residue against dephosphorylation (PubMed:18663142, PubMed:19208764). TPX2 is inactivated upon binding to importin-alpha (PubMed:26165940). At the onset of mitosis, GOLGA2 interacts with importin-alpha, liberating TPX2 from importin-alpha, allowing TPX2 to activates AURKA kinase and stimulates local microtubule nucleation (PubMed:26165940). Interacts with AURKA (PubMed:14580337, PubMed:18662907, PubMed:18663142). Interacts with importin-alpha; leading to inactivate TPX2 (PubMed:26165940). Interacts with HNRNPU; this interaction recruits HNRNPU to spindle microtubules (MTs) (PubMed:21242313, PubMed:25986610).

Also known as TPX2_HUMAN, TPX2, C20orf1, C20orf2, DIL2, HCA519. Spindle assembly factor required for normal assembly of mitotic spindles. Required for normal assembly of microtubules during apopt ...

EXTERNAL LINKS

TPX2

Targeting protein for Xklp2

TPX2

Molecular Synopsis