Protein Name:
Dual specificity protein kinase TTK
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UniprotKB/SwissProt ID: P33981 (P33981)
Gene Name:
TTK
Organism: Homo sapiens (Human)
Function: Involved in mitotic spindle assembly checkpoint signaling, a process that delays anaphase until chromosomes are bioriented on the spindle, and in the repair of incorrect mitotic kinetochore-spindle microtubule attachments (PubMed:18243099, PubMed:28441529, PubMed:29162720). Phosphorylates MAD1L1 to promote the mitotic spindle assembly checkpoint (PubMed:18243099, PubMed:29162720). Phosphorylates CDCA8/Borealin leading to enhanced AURKB activity at the kinetochore (PubMed:18243099). Phosphorylates SKA3 at 'Ser-34' leading to dissociation of the SKA complex from microtubules and destabilization of microtubule-kinetochore attachments (PubMed:28441529). Phosphorylates KNL1, KNTC1 and autophosphorylates (PubMed:28441529). Phosphorylates MCRS1 which enhances recruitment of KIF2A to the minus end of spindle microtubules and promotes chromosome alignment (PubMed:30785839)
Other Modifications: View all modification sites in dbPTM
Protein Subcellular Localization:
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Graphical Visualization of S-nitrosylation Sites:
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The S-nitrosylation sites of P33981
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| No. |
Position |
S-nitrosylated Peptide |
Secondary Structure of S-nitrosylated Peptide |
Solvent Accessibility of nitrosylated Site |
PubMed ID |
| 1 |
269 |
LRQTNKTKQS C PFGRVPVNLL |
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| 2 |
284 |
VPVNLLNSPD C DVKTDDSVVP |
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| 3 |
322 |
PGSKPSGNDS C ELRNLKSVQN |
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