UniProt Protein Function: | 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). |
UniProt Code: | Q9ULW0 |
NCBI GenInfo Identifier: | 13124096 |
NCBI Gene ID: | 22974 |
NCBI Accession: | Q9ULW0.2 |
UniProt Secondary Accession: | Q9ULW0,Q96RR5, Q9H1R4, Q9NRA3, Q9UFN9, Q9UL00, Q9Y2M1 |
UniProt Related Accession: | Q9ULW0 |
Molecular Weight: | 89,393 Da |
NCBI Full Name: | Targeting protein for Xklp2 |
NCBI Synonym Full Names: | TPX2, microtubule nucleation factor |
NCBI Official Symbol: | TPX2 |
NCBI Official Synonym Symbols: | DIL2; p100; DIL-2; HCTP4; FLS353; HCA519; REPP86; C20orf1; C20orf2; GD:C20orf1 |
NCBI Protein Information: | targeting protein for Xklp2 |
UniProt Protein Name: | Targeting protein for Xklp2 |
UniProt Synonym Protein Names: | Differentially expressed in cancerous and non-cancerous lung cells 2; DIL-2; Hepatocellular carcinoma-associated antigen 519; Hepatocellular carcinoma-associated antigen 90; Protein fls353; Restricted expression proliferation-associated protein 100; p100 |
Protein Family: | Targeting protein |
UniProt Gene Name: | TPX2 |
UniProt Entry Name: | TPX2_HUMAN |