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How do human cells ensure the accurate segregation of chromosomes?

  • Full or part time
  • Application Deadline
    Applications accepted all year round
  • Self-Funded PhD Students Only
    Self-Funded PhD Students Only

Project Description

Note that this project is offered to self-funded, as well as BBSRC LIDo Doctoral Training Partnership, London NERC Doctoral Training Partnership, China Scholarship Council, CONACYT, Ciência sem Fronteiras, Islamia College Peshwar and Newton Katip Çelebi funded students.

Aneuploidy (incorrect number of chromosomes) is a hallmark of aggressive cancers, but the underlying molecular cause is unclear. The PhD student will aim to discover molecular mechanisms that prevent aneuploidy in human cells.

When a cell divides into two, its microtubules must properly capture each chromosome at specialised multi-protein structures called kinetochores. Therefore, to understand how aneuploidy arises, we should understand how kinetochores are captured by microtubules. Recent high-resolution microscopy work in the Draviam group showed that kinetochores are first captured along microtubule walls and then brought to microtubule-ends. This is an important cellular event because when the kinetochore is not tethered to microtubule-ends, the growth and shrinkage of microtubule-ends can not push or pull chromosomes.

The PhD student will investigate:
a) how microtubules capture and move kinetochores and;
b) how microtubules impart adequate forces to pull apart chromosomes into two equal sets.

The student will be trained in state-of-art high-resolution live-cell microscopy, biochemistry and molecular biology techniques.

A brief work plan is listed below:
1-15 months: The student will generate mutants of outer-kinetochore proteins that interact with microtubules. By expressing these mutants in human cells, the student will determine whether the mutant causes defective segregation of chromosomes.

15-30 months: The student will choose mutant phenotypes from year-1 for live-cell analysis for analysing changes in microtubule-mediated pulling of kinetochore and chromosome-microtubule attachment status.

30-36 months: The student will generate a written thesis of all successful experiments that help understand kinetochore structure and function.

This multi-disciplinary project is ideal for students interested in working at the interface of cancer and basic biology research.

Applications are made online at: http://www.sbcs.qmul.ac.uk/postgraduate/research/Applying/index.html (choose Biological Sciences at the bottom of the page).

Funding Notes

Research expenses will be covered. Applications are invited from candidates with at least an upper-second class honours degree in an area relevant to the project (e.g. Biochemistry, Molecular/Cellular Biology, Biomedical Sciences). Written and spoken English skills are essential.

For more information, please email Dr Viji M. Draviam at .


Ochi T et al PAXX, a paralog of XRCC4 and XLF, interacts with Ku to promote DNA double-strand break repair Science 2015 347 (6218): 185-188. Tamura et al., Mitosis phase-specific interactions of EB1 reveal two pools of SKAP associated with distinct mitotic outcomes. (Biology Open 2015 (4): 155-169).

How good is research at Queen Mary University of London in Biological Sciences?

FTE Category A staff submitted: 23.39

Research output data provided by the Research Excellence Framework (REF)

Click here to see the results for all UK universities

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