Mechanistic basis of the mitotic kinesin CENPE in chromosomal instability

Prof Carolyn Moores (primary)
Biological Sciences
Birkbeck
Dr Sarah McClelland (secondary)
Barts Cancer Institute
QMUL

Abstract

The mitotic spindle is built from microtubules and its dynamics are driven by members of the kinesin motor superfamily. An imbalance in the tight regulation of mitosis, or malfunction of a spindle component, results in incorrect chromosome segregation. Although segregation defects can lead to a range of cell fates, errors in mitosis can drive chromosomal instability, aneuploidy and cancer. The goal of this project is to use cryo-electron microscopy and biochemistry to reveal the mechanism of the mitotic kinesin CENPE, its susceptibility to inhibition, and to dissect the consequences of its inhibition on chromosomal instability in diverse cancer cell lines.


References

1 Locke J, Joseph AP, Peña A, Möckel MM, Mayer TU, Topf M, Moores CA. Structural basis of human kinesin-8 function and inhibition. Proc Natl Acad Sci U S A. 2017, 114(45):E9539-E9548.

2 Manka SW, Moores CA. The role of tubulin-tubulin lattice contacts in the mechanism of microtubule dynamic instability. Nat Struct Mol Biol. 2018, 25(7):607-615.

3 Tovini L, McClelland SE Impaired CENP-E Function Renders Large Chromosomes More Vulnerable to Congression Failure. Biomolecules. 2019, 9(2) 44-55.

4 Worrall JT, Tamura N, Mazzagatti A, Shaikh N, van Lingen T, Bakker B, Spierings DCJ, Vladimirou E, Foijer F, McClelland SE. Non-random Mis-segregation of Human Chromosomes. Cell Rep. 2018 23(11):3366-3380.

5 Funk LC, Zasadil LM, Weaver BA Living in CIN: Mitotic Infidelity and Its Consequences for Tumor Promotion and Suppression. Dev Cell. 2016, 39(6):638-652.


BBSRC Area
Molecules, cells and industrial biotechnology
Area of Biology
Cell BiologyStructural Biology
Techniques & Approaches
BiochemistryImage ProcessingMicroscopy / ElectrophysiologyMolecular Biology