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K 858 is an ATP-uncompetitive mitotic kinesin Eg5 inhibitor, which does not effect microtubule dynamics. Studies on HCT116 cells indicate that K 858 causes mitotic arrest, cell growth inhibition, and activates caspase-3. It is also believed that K858 inhibits the growth of cancer cells. Studies suggest that K 858 is not neurotoxic in motor coordination. Furthermore, K 858 can be a beneficial tool because unlike similar compounds that inhibit Eg5, K 858 does not form breaks in double stranded DNA. |