Protein: Microtubule organization protein AKNA (AT-hook-containing transcription factor) (Q80VW7)
Organism: Mus musculus (Mouse)
Function: Centrosomal protein that plays a key role in cell delamination by regulating microtubule organization. Required for the delamination and retention of neural stem cells from the subventricular zone during neurogenesis. Also regulates the epithelial-to-mesenchymal transition in other epithelial cells. Acts by increasing centrosomal microtubule nucleation and recruiting nucleation factors and minus-end stabilizers, thereby destabilizing microtubules at the adherens junctions and mediating constriction of the apical endfoot. In addition, may also act as a transcription factor that specifically activates the expression of the CD40 receptor and its ligand CD40L/CD154, two cell surface molecules on lymphocytes that are critical for antigen-dependent-B-cell development (By similarity). Binds to A/T-rich promoters (By similarity). It is unclear how it can both act as a microtubule organizer and as a transcription factor; additional evidences are required to reconcile these two apparently contradictory functions (Probable).
Subcellular location: Cytoplasm, cytoskeleton, microtubule organizing center, centrosome, centriole {ECO:0000269|PubMed:30787442}. Nucleus {ECO:0000250|UniProtKB:Q7Z591}. Note=Localizes to the distal part of the subdistal appendages of the mother centriole in interphase (PubMed:30787442). Also found at the proximal ends of centrioles and along microtubules (PubMed:30787442). The centrosomal localization is dependent on centrioles (PubMed:30787442). Dissociates from centrosomes during M-phase without proteolytic degradation and reassembles at the centrosomes during late telophase and early G1 phase (PubMed:30787442). Dissociation and reassembly is regulated by phosphorylation (PubMed:30787442). {ECO:0000269|PubMed:30787442}.
Interaction partners:
Sequence:
MASSGAKAQWVGPSLGQGPRRRRWAWAEEQDTDGRRDQGWGNSQSLPEAPSPELLEDFRRAQEHLPPLEWDPDMQDSEESSGEETEADDASSPEGSTVPLPWLSRSNQQLDMSEEELDEASGRPEVDLAGESCTELECEDQGDSSPPPPGQGPAKGWVTFIKQGSNYRPSEHLEAQPSVEHSRTKSWSSGTVSLRQPSDSLGSTWEGDTEVPQPSILPKALPQSPCHNFPHPGDRNGGDVAPATPTEFRDSLAAPAQNAECSAGTWGEETTSLPSSRPEDQTWKRTKTSPKPLPSRFTGSVSPLSTRLGAIKKVVPQHKQGATLAGHSSSQAPKYGRGRRLNYPLPDFSKVGPRVRFPKDENYRPPKSRGHNRQQGSTRPLIFKSPAEIVRDVLLSSGEASLAKESSLAHTITRVPQEFQTPEQATELVHQLQEDYHKLLTKYAEAENTIDQLRLGAKVHLYSDPPQPSQSFCSGSMPQGSKVLSFSIPQPRVAEWWPDPAQDPQASEATGWPFPRTDLSPSSSPGVATPGRLPQSQGIATDQPSTGQTQALTSQASRLLAKVQSFEELVLAGHLPPQDQIKSLEQLRAAHMALEAEYLQACREELLDPQLDASQGSPRTLNLCRELEAEIYHLGQRLEELQDHMDQTQRETEPCRPDLQDSTPTMSFLPQSAHLSMPSGPVSLPDGQTYQEPATTTTTSPGSSCTLPINKKLSLSIKTEESPRGLPVPLRDRTLQVEQDFHGLLERYLSVKSLPEALRDEDEDDLEEEEEEQDHQGPLEVDSPATAPGKTEAVRVPPGERPTQAEESHRDATQEDEEQMGPMKSPDFRPSMARDTYTPVLDTAEVAQRGTKAMVSHQSSLTSLEESRPSELLPRKALLRAGGPHTEEPWMVSPETDSGFVGSETSIVSPFTQTPEHRLSHVSTSGPSAQHLTASVPGDRTSHPKARGLMVPRRATETGIPRSRTQQHFSSLSSPGRGAQSCHLEETSVAKIAVPRSEFKRQKQISKQLLPSGRTSPDSAPAPTAASTPHGSAESTANLLLNRTERDQAIKDLQAEVSRLRLQLEDSLHRPHPDGPACVASAFNHSTQTQEKLGSSPSWGPHYGSKSTERLSREPNGVEPAEPMGRRRARSSSVPRDVPRLYLSSESESPAPRLSSEKSRTFEEHPEAAQWGTRPQSSSKRRERVSFRGQYTGQEYHILSPKAILKDSGTPSCPHCHPIRTQDTGSAVSRDTTRGSSAADTLRCALCGEVKSSAEADGSSSGPSEKNTPKKPSTPILKRKNRQTGSPVRMAPGLWYLAAAPPAPAPPALAYISSAPIMPYLPPTVYYAAPAPTSAQTASPQPARGPRRTRHSVQLGLNDLEELQAALREAAQAAENVRSTTRQLSRSLSADLRHARSLRGSCLF