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US 6,387,642 B2Granted
Method for identifying a reagent that modulates Myt1 activity
AssigneeCalifornia Institute of Technology
InventorsPaul R. Mueller, Thomas R. Coleman, Akiko Kumagai, William G. Dunphy
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Abstract
The present invention provides a threonine/tyrosine kinase, Myt1, that phosphorylates the cyclin-dependent kinase, Cdc2, to provide regulation of the cell cycle at the G2/M interphase. Also included are polynucleotides encoding Myt1 polypeptide and antibodies that bind to Myt1. Methods of modulating Myt1 for preventing premature entry of the cell into mitosis or to accelerate entry into mitosis are also provided, as are methods for identifying agents that modulate Myt1.
Claims4
A method for identifying a reagent that modulates Myt1 activity, the method comprising:
- a) obtaining a test sample containing a Myt1 polypeptide as set forth in SEQ ID NO:2;
- b) contacting the test sample with a substrate for the Myt1 polypeptide as set forth in SEQ ID NO:2, the reagent, and labeled phosphate under conditions sufficient to allow phosphorylation of the substrate in the absence of the reagent;
- c) detecting phosphorylation of the substrate;
- and
- d) comparing the effect of the reagent on Myt1 activity relative to a control, wherein any variation compared to the control is indicative of a reagent which modulates Myt1 activity.
2 more elements
Dependencies are inferred from the claim text.