Summary

Name SKA1
Full Name Spindle and kinetochore-associated protein 1
Synonyms SKA1_HUMAN | C18orf24
Primary ID Q96BD8
Links - -
Type protein
Relations 2
Function Component of the SKA1 complex, a microtubule-binding subcomplex of the outer kinetochore that is essential for proper chromosome segregation (PubMed:17093495, PubMed:19289083, PubMed:23085020). Required for timely anaphase onset during mitosis, when chromosomes undergo bipolar attachment on spindle microtubules leading to silencing of the spindle checkpoint (PubMed:17093495). The SKA1 complex is a direct component of the kinetochore-microtubule interface and directly associates with microtubules as oligomeric assemblies (PubMed:19289083). The complex facilitates the processive movement of microspheres along a microtubule in a depolymerization-coupled manner (PubMed:19289083). Affinity for microtubules is synergistically enhanced in the presence of the ndc-80 complex and may allow the ndc-80 complex to track depolymerizing microtubules (PubMed:23085020). In the complex, it mediates the interaction with microtubules (PubMed:19289083, PubMed:23085020).

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Relations

Regulator Mechanism target score
+ up-regulates activity img/direct-activation.png phosphorylation SKA1 0.725
Publications: 1 Organism: In Vitro
+ form complex img/form-complex.png binding SKA complex 0.906
Publications: 1 Organism: In Vitro