Protein
Spindle assembly checkpoint kinase
Organism
Kluyveromyces lactis (strain ATCC 8585 / CBS 2359 / DSM 70799 / NBRC 1267 / NRRL Y-1140 / WM37)
Function
Required for high-fidelity chromosome segregation during the later part of each cell cycle. Acts in opposition to the phosphatase PP1. Has a role in attaching the kinetochores to the microtubules and ensuring that sister kinetochores connect to opposite poles. The promotion of bi-orientation is achieved by selectively detaching kinetochore-microtubule attachments that are not under tension. Phosphorylates histone H3 to form H3S10ph during mitosis and meiosis (By similarity).
Similarity
Belongs to the protein kinase superfamily. Ser/Thr protein kinase family. Aurora subfamily.
Sequence
MRPSLSRDASDTGRRHSLLQQSKLLSIRLSNAGKRPSLSRGHAHEKDSITSSHHRLSTGPVNNNPRRSLMVKKPNTAHGTRVPILNDHNDKFENMTLQDFEIGKILGKGKFGKVYCVKHRETGLICALKAMEKKEIVQYTIQKQFRREVEIQGSFKHKNLTQLYGFFYDEKRVYLLMEYVYYGELYKFLKNNGPLNETLASYFVYQMANALDYMHSKNILHRDIKPENILIGFNNTIKLTDFGWSVYNEDGQKRKTLCGTIDYLSPELIKSREYNNKVDVWALGVLTYELLVGSPPFEEDTKEMTYRRILRCDLKFPLNVSPQARDLIVRLLQFEPSKRIPLSEVKSHAWIANNRGSWTDL