Dual specificity protein kinase TTK
Definition:
Phosphorylates proteins on serine, threonine, and tyrosine. Probably associated with cell proliferation. Phosphorylates MAD1L1 to promote mitotic checkpoint signaling. Essential for chromosome alignment by enhancing AURKB activity (via direct CDCA8 phosphorylation) at the centromere, and for the mitotic checkpoint.
References:
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[1]. Nannette Jelluma, et al. Mps1 phosphorylates Borealin to control Aurora B activity and chromosome alignment. Cell. 2008 Jan 25;132(2):233-46. [Content Brief]
[2]. Wenbin Ji, et al. Direct interactions of mitotic arrest deficient 1 (MAD1) domains with each other and MAD2 conformers are required for mitotic checkpoint signaling. J Biol Chem. 2018 Jan 12;293(2):484-496. [Content Brief]
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