Fixed-term

Dynamics of the peri-nuclear actomyosin network for correct chromosome positioning in early mitosis

Funding – self-funded/externally sponsored applicants (PhD Fees can be found here) Applications are accepted year round Standard Entry dates – January and September Applicants are expected to have a degree (equivalent of Honours or Masters) in a relevant discipline. To maintain genetic integrity, human cells must inherit the whole set of chromosomes without any loss or excess when the cell division takes place. To ensure this process, each copy of duplicated chromosomes must segregate to opposite spindle poles during mitosis. This process relies on the correct interaction of chromosomes with the mitotic spindle. Defects in this process lead to numerical chromosomal instability (N-CIN), which is closely associated with chemotherapy resistance and poor prognosis of cancers. The Tanaka group and others have recently discovered a novel perinuclear actomyosin network formed in early mitosis (PANEM). The PANEM rapidly assembles in early mitosis (prophase), shows contraction immediately after the nuclear envelope breakdown (NEBD), and pushes chromosomes inward to facilitate their interaction with the mitotic spindle (Booth et al 2019). The defects in PANEM assembly or contraction lead to a delay in chromosome congression to a metaphase plate and frequent errors in chromosome segregation. Intriguingly, some cancer cells (e.g. HeLa) with N-CIN lack the PANEM. In this project, we will address molecular mechanisms facilitating the rapid PANEM assembly in prophase and identify the trigger of PANEM contraction immediately after NEBD. These dynamic characters of the PANEM are crucial for chromosome positioning in early mitosis to ensure correct chromosome segregation later in mitosis. Moreover, we will address whether the lack of PANEM in cancer cells with N-CIN plays a causative role in N-CIN in these cancer cells. The student, who works on this project, will learn methods of advanced live-cell imaging, AI-driven image analyses, CRISPR gene editing and mass-spectrometry. If you have any questions about this project, please do not hesitate to contact Prof Tomo Tanaka (t.tanaka@dundee.ac.uk). Reference Booth AJR., Yue, Z, Eykelenboom JK, Luxton GWG, Hochegger H & Tanaka TU Contractile actomyosin network on nuclear envelope remnants positions chromosomes for mitosis. eLife 8, e46902 (2019). Our research community thrives on the diversity of students and staff which helps to make the University of Dundee a UK university of choice for postgraduate research.  We welcome applications from all talented individuals and are committed to widening access to those who have the ability and potential to benefit from higher education. How to apply Please contact the principal project supervisor to discuss your interest further, see supervisor details below. For general enquiries, contact SLS-PhDAdmin@dundee.ac.uk Supervisors Principal supervisor Person Professor Tomoyuki Tanaka Professor t.tanaka@dundee.ac.uk +44 (0)1382 385814 Second supervisor Person Dr Tony Ly Principal Investigator/Senior Lecturer t.ly@dundee.ac.uk +44 (0)1382 381627

Cryo electron microscopy of the exocyst complex on membranes

Funding – self-funded/externally sponsored applicants (PhD Fees can be found here) Applications are accepted year round Standard Entry dates – January and September Applicants are expected to have a degree (equivalent of Honours or Masters) in a relevant discipline. Cell communication requires both a sending and a receiving cell. To send messages, Metazoan harness trafficking machinery. Yet, despite basic knowledge of the components and regulatory factors involved, we lack molecular mechanism. We aim to determine high-resolution structural ensembles of the human exocyst complex. This structure is required to understand functional adaptability, flexibility, and the fundamental biology of cargo delivery to the plasma membrane. This work will have high-level impact to many fields, as nearly all constitutive and specialized cargo secretion uses this machinery. Thus, we are interested in an ambitious and driven student. The student will emerge an expert in protein expression and purification from eukaryotic systems, large protein complex biochemistry, membrane methods, alongside hybrid structural approaches including cryo electron microscopy and tomography. We have collaboration opportunities available with international partners. Please do not hesitate to contact the PI, David Murray, at dhmurray@dundee.ac.uk if interested. Our research community thrives on the diversity of students and staff which helps to make the University of Dundee a UK university of choice for postgraduate research.  We welcome applications from all talented individuals and are committed to widening access to those who have the ability and potential to benefit from higher education. How to apply Please contact the principal project supervisor to discuss your interest further, see supervisor details below. For general enquiries, contact SLS-PhDAdmin@dundee.ac.uk Supervisors Principal supervisor Person Dr David Murray Principal Investigator/Senior Lecturer d.h.murray@dundee.ac.uk +44 (0)1382 381731

Investigating the role of intestinal T cells in the response to diet

Funding – self-funded/externally sponsored applicants (PhD Fees can be found here) Applications are accepted year round Standard Entry dates – January and September Applicants are expected to have a degree (equivalent of Honours or Masters) in a relevant discipline. Intraepithelial T lymphocytes (IEL) are at the forefront of mucosal immunity – the first immune cells that pathogens encounter in the gut. IEL are central to the protection of the gut against infection and dietary stress, but dysregulated IEL responses are also associated with autoimmune inflammatory bowel diseases such as Coeliac and Crohn’s disease.  These unique T cells reside between nutrient-absorptive intestinal epithelial cells that dictate the fuels available to IEL to allow them to function, but how IEL regulate nutrient absorption and are regulated by the diet is unknown. The aim of this project is to investigate how metabolic adaptation of IEL to the intestinal environment, allows IEL to respond appropriately to intestinal metabolic perturbations, including diet and microbial challenges. We will explore how cellular bioenergetics, macromolecule biosynthesis, and metabolite waste management are regulated in IEL, and how nutrient availability may regulate IEL cross talk with the epithelium. In this project, the student will learn to use state-of-the-art techniques to study metabolism, including metabolomics, mass spectrometry, high-resolution imaging, signalling studies to investigate the pathways regulating IEL metabolic adaptations, and in vivo models with different diets to address how perturbations in these pathways regulate intestinal homeostasis. These studies will provide fundamental insights into how the unique gut-resident immune cells adapt to their environment to maintain the balance between diet, the epithelium and immune responses, findings that can be used to tune IEL activity for treatment of infectious, autoimmune and/or metabolic diseases. Further reading: Brenes AJ*, Vandereyken M*, James OJ, Hukelmann JL, Spinelli L, Lamond AI, Swamy M (2021). “Tissue environment, not ontogeny, defines intestinal intraepithelial T lymphocytes”. eLife, 10, e70055 DOI: 10.7554/eLife.70055 Vandereyken M, James OJ, Swamy M (2020). “Mechanisms of activation of intestinal intraepithelial lymphocytes.” Mucosal Immunology, 13:721–31. DOI: 10.1038/s41385-020-0294-6 He S, Kahles F, Rattik S, Nairz M, McAlpine C, et al. ‘Gut Intraepithelial T Cells Calibrate Metabolism and Accelerate Cardiovascular Disease’. Nature 566: 115–19. DOI: 10.1038/s41586-018-0849-9. Our research community thrives on the diversity of students and staff which helps to make the University of Dundee a UK university of choice for postgraduate research.  We welcome applications from all talented individuals and are committed to widening access to those who have the ability and potential to benefit from higher education. How to apply Please contact the principal project supervisor to discuss your interest further, see supervisor details below. For general enquiries, contact SLS-PhDAdmin@dundee.ac.uk Supervisors Principal supervisor Person Dr Mahima Swamy Senior Lecturer m.swamy@dundee.ac.uk +44 (0)1382 388615 Second supervisor Person Dr Alison McNeilly Principal Investigator A.D.McNeilly@dundee.ac.uk +44 (0)1382 388573

Uncovering the mediators of colonization resistance to pathogens facilitated by the gut microbiome

Funding – self-funded/externally sponsored applicants   (PhD Fees can be found here) Applications are accepted year round Standard Entry dates – January and September Applicants are expected to have a degree (equivalent of Honours or Masters) in a relevant discipline. Colonization resistance refers to the ability of the microbiome in an organ to prevent colonization of that organ by pathogenic microorganisms [1]. For example, the gut microbiome of mice protect them from infection by the intestinal pathogen Salmonella typhimurium.  Loss of gut microbiota, by antibiotic treatment for example, can lead to susceptibility to infection. Despite some evidence for active antagonism against invading pathogens, mechanisms underlying colonization resistance are poorly understood. Understanding this phenomena could lead to ways to prevent and treat infection with microbes with anti microbial resistance (AMR). We propose to use Caenorhabditis elegans, a roundworm with a robust innate immune system, to identify microbiota species mediating colonization resistance to human microbial pathogens. The C. elegans gut, colonized first with individual or a consortia of gut microbiota derived (i) from C. elegans or (ii) from mice will be subsequently infected with pathogenic bacteria [2-4]. We will assess the contribution of the entire microbiota and individual species on colonization by flurescently labelled pathogens. Subsequently, we will use proteomics, liquid chromatography mass spectrometry (LC-MS) and gas chromatography-mass spectrometry (GC-MS) approaches to identify soluble mediators of active antagonism and inhibitory metabolites. We will use worms lacking innate immune mechanisms to understand the effect of host genetics on colonization resistance offered by the gut microbiome [5].  C. elegans provides a genetically and optically tractable model to study colonization in a short amount of time. The PhD student will acquire training in C. elegans maintenance, microbiome colonization and infection. The student will also receive training in LC-MS and GC-MS analyses of individual bacterium and complex, multi-species samples.  The student will be provided additional training in scientific writing, statistical analyses and data management at University of Dundee in addition to mentoring support throughout and during career transition. REFERENCE: 1. Microbiota-mediated colonization resistance: mechanisms and regulation. Nat Rev Microbiol. 2023 Jun;21(6):347-360. doi: 10.1038/s41579-022-00833-7. PMID: 36539611. 2. CeMbio – The Caenorhabditis elegans Microbiome Resource. G3 (Bethesda). 2020 Sep 2;10(9):3025-3039. doi: 10.1534/g3.120.401309. PMID: 32669368. 3. Olfactory basis for essential amino acid perception during foraging in Caenorhabditis eleganseLife13:RP101936https://doi.org/10.7554/eLife.101936.1 4. Nutritional and host environments determine community ecology and keystone species in a synthetic gut bacterial community. Nat Commun. 2023 Aug 8;14(1):4780. doi: 10.1038/s41467-023-40372-0. PMID: 37553336. 5. Neuronal GPCR controls innate immunity by regulating noncanonical unfolded protein response genes. Science. 2011 May 6;332(6030):729-32. doi: 10.1126/science.1203411. Epub 2011 Apr 7. PMID: 21474712. Our research community thrives on the diversity of students and staff which helps to make the University of Dundee a UK university of choice for postgraduate research. We welcome applications from all talented individuals and are committed to widening access to those who have the ability and potential to benefit from higher education. How to apply Please contact the principal project supervisor to discuss your interest further, see supervisor details below. For general enquiries, contact SLS-PhDAdmin@dundee.ac.uk Supervisors Principal supervisor Person Dr Varsha Singh Senior Lecturer and Royal Society Wolfson Fellow vsingh001@dundee.ac.uk +44 (0)1382 388898 Second supervisor Person Dr Daniel Neill Senior Lecturer dneill001@dundee.ac.uk +44 (0)1382 388899

Advanced Tools to Uncover the Assembly and Regulation of Proteasome Variants

Funding – self-funded/externally sponsored applicants   (PhD Fees can be found here) Applications are accepted year round Standard Entry dates – January and September Applicants are expected to have a degree (equivalent of Honours or Masters) in a relevant discipline. Protein homeostasis and the regulation of protein degradation by the proteasome are fundamental cellular processes that maintain health by ensuring the proper synthesis, folding, and degradation of proteins. The failure of proteostasis is at the core of pathologies like neurodegeneration, a leading cause of disability, dependency, and death globally. Despite its critical importance, the molecular mechanisms that control protein homeostasis and proteasome function remain poorly understood. The Rousseau lab is interested in developing new technologies to explore the mechanistic control of proteasome variants in health and disease. The proteasome consists of a 20S core particle, which houses the proteolytic sites, and one or two regulatory particles (RPs) that recognise, unfold, and translocate substrates into the 20S for degradation. The primary RP, known as the 19S, mediates ubiquitin-dependent protein degradation and is commonly referred to as the conventional proteasome. Alternative RPs, such as PA28 and PA200, regulate ubiquitin-independent degradation and play key roles in immune response and nuclear integrity, respectively. Another layer of complexity is the existence of cell-type and context-dependent proteasome variants that diversify its functional repertoire, allowing adaptation to various cellular contexts. One of our main goals is to define the spatio-temporal regulation of proteasome assembly and activity in health, stress and diseases using both yeast and mammalian systems. This includes assembly and regulation of the poorly characterised alternative forms of the proteasome. The PhD project aims to (1) engineer the proteasome to develop innovative tools for monitoring the assembly of its alternative forms in living cells, (2) use these tools to uncover the mechanistic details of proteasome variant assembly, and (3) examine how stress and disease conditions impact proteasome variant assembly. The project offers training in cutting-edge technologies, including cell engineering (CRISPR-Cas9 editing of proteasome genes), molecular biology (proteasome and protein degradation assays), and high-resolution confocal microscopy (proteasome dynamics), applied to both yeast and mammalian systems. Recent lab contributions:    Williams, T. D., Winaya, A., Joshua, I., & Rousseau, A (2023) Proteasome assembly chaperone translation upon stress requires Ede1 phase separation at the plasma membrane iScience 27 doi:10.1016/j.isci.2023.108732 PMID: 38235332   Black, A., Williams, T. D., Soubigou, F., Joshua, I. M., Zhou, H., Lamoliatte, F., & Rousseau, A (2023) The ribosome-associated chaperone Zuo1 controls translation upon TORC1 inhibition EMBO Journal 42 e113240 doi:10.15252/embj.2022113240 PMID: 37984430   Agrotis A, Lamoliatte F, Williams TD, Black A, Horberry R, Rousseau A (2023) Multiple phosphorylation of the Cdc48/p97 cofactor protein Shp1/p47 occurs upon cell stress in budding yeast Life Sciences Alliance 6 doi:10.26508/lsa.202201642 PMID: 36693698   Williams, T., Cacioppo, R., Agrotis, A., Black, A., Zhou, H., & Rousseau, A (2022) Actin remodelling controls proteasome homeostasis upon stress Nature Cell Biology  doi:10.1038/s41556-022-00938-4 PMID: 35739319   Adrien Rousseau and Anne Bertolotti (2016) An evolutionarily conserved pathway controls proteasome homeostasis. Nature 536 184–189 PMID: 27462806   Ariane Hanssum, Zhen Zhong, Adrien Rousseau, Agnieszka Krzyzosiak, Anna Sigurdardottir and Anne Bertolotti (2014) An inducible chaperone adapts proteasome assembly to stress Mol. Cell  55 566–577 PMID: 25042801 Our research community thrives on the diversity of students and staff which helps to make the University of Dundee a UK university of choice for postgraduate research. We welcome applications from all talented individuals and are committed to widening access to those who have the ability and potential to benefit from higher education. How to apply Please contact the principal project supervisor to discuss your interest further, see supervisor details below. For general enquiries, contact SLS-PhDAdmin@dundee.ac.uk Supervisors Principal supervisor Person Dr Adrien Rousseau Principal Investigator/Senior Lecturer a.rousseau@dundee.ac.uk +44 (0)1382 384109

Inhibition of WNT signalling in colorectal cancer via targeted degradation of FAM83F-CK1a and FAM83G-CK1a complexes

Funding – self-funded/externally sponsored applicants   (PhD Fees can be found here) Applications are accepted year round Standard Entry dates – January and September Applicants are expected to have a degree (equivalent of Honours or Masters) in a relevant discipline. Hyperactivation of WNT/β-catenin signalling is a prominent hallmark of colorectal cancer (CRC). Despite progress in understanding the pathogensis of CRCs, there are still limited treatment options. The Sapkota lab has recently uncovered critical roles for the poorly characterised FAM83 proteins, FAM83F and FAM83G, in activation of WNT/β-catenin signalling. Specifically, FAM83F and FAM83G activate WNT signalling through interaction with CK1α. Furthermore, loss of FAM83G-CK1α interaction and inhibition of WNT signalling underpins the pathogenesis of a skin disorder termed Palmoplantar Keratoderma caused by missense mutations in FAM83G. Excitingly, anti-myeloma drug lenalidomide, which targets the degradation of CK1α also degrades FAM83F and inhibits WNT signalling. This PhD project aims to build on these findings and establish the substrates of FAM83F-CK1α and FAM83G-CK1α complexes in WNT signalling, establish their molecular bases by solving the structures of the complexes, and develop degraders (PROTACs and/or molecular glues) to target the degradation of FAM83F and/or FAM83G to inhibit WNT signalling and proliferation in colorectal cancers. The project will employ a range of cutting-edge technologies, such as CRISPR/Cas9 genome editing, Cryo-EM & crystallography, mass-spectrometry, organoid models, DEL screens to identify tool compounds, and development of optimized compounds into PROTACs. The student will be exposed to working alongside some leading pharmaceutical industries, including Boehringer Ingelheim, Janssen Pharaceuticals, GSK and Amgen, that collaborate with the Sapkota lab. The prospective student will be based in the Sapkota lab at the MRC Protein Phosphorylation and Ubiquitylation Unit (MRC PPU within the School of Life Sciences (SLS). The MRC PPU is one of the world’s most renowned centres for research on protein phosphorylation and ubiquitylation (http://www.ppu.mrc.ac.uk/). Many world-leading researchers in the field of signal transduction have trained within the MRC PPU. The major aims of the MRC PPU are to advance understanding of the role of protein phosphorylation and ubiquitylation in cell regulation and human disease, to facilitate the development of drugs to treat diseases caused by abnormalities in phosphorylation and ubiquitylation, to generate reagents and improve technologies. A key remit of the MRC PPU is to train the next generation of scientists who will advance our understanding in this crucial area of medical research. The School of Life Sciences at the University of Dundee, a world-class academic institution with a reputation for the excellence of its research, its high-quality teaching and student experience, and the strong impact of its activities outside academia. With 900 staff from over 60 countries worldwide, the School provides a dynamic, multi-national, collegiate and diverse environment with state-of-the-art laboratory, technology and teaching facilities. Our research community thrives on the diversity of students and staff which helps to make the University of Dundee a UK university of choice for postgraduate research.  We welcome applications from all talented individuals and are committed to widening access to those who have the ability and potential to benefit from higher education. How to apply Please contact the principal project supervisor to discuss your interest further, see supervisor details below. For general enquiries, contact SLS-PhDAdmin@dundee.ac.uk Supervisors Principal supervisor Person Professor Gopal Sapkota Professor G.Sapkota@dundee.ac.uk +44 (0)1382 386330 Second supervisor Person Professor Satpal Virdee Professor s.s.virdee@dundee.ac.uk +44 (0)1382 388738

Identify new suppressors of disease-causing proteasome mutations

Funding – self-funded/externally sponsored applicants   (PhD Fees can be found here) Applications are accepted year round Standard Entry dates – January and September Applicants are expected to have a degree (equivalent of Honours or Masters) in a relevant discipline. The proteasome degrades most cellular proteins in a controlled and timely manner and thereby controls many key processes. Proteasomes are also essential for maintaining intracellular protein quality control by removing misfolded, damaged, or aggregation-prone proteins. Thus, the proteasome is vital in all eukaryotes, with its dysfunction associated with various human diseases, including cancer and neurodegeneration. However, the impact of disease-causing mutations in proteasome genes on proteasome integrity and cell survival remains poorly understood. The use of the budding yeast Saccharomyces cerevisiae as a model system has been instrumental to understanding the physiological functions and mechanistic attributes of the proteasome. Using budding yeast, this project will aim to discover new suppressor genes rescuing disease-causing mutations of the proteasome. This will involve (1) generating CRISPR-Cas9 mutations in proteasome genes and monitor their impact on proteasome assembly and activity, (2) performing a genome-wide suppressor screen in proteasome mutants to identify new genes rescuing proteasome mutations, and (3) unravelling the underlying mechanisms behind the phenotypic suppression of proteasome mutations. Finally, suppressor genes having the strongest phenotypic rescue of proteasome mutations in yeast will be investigated in human cells. This PhD project will employ genome editing, biochemistry, molecular and cell biology and proteasome engineering to discover new suppressor genes rescuing proteasome mutations observed in diseases. This will pave the way for defining new strategies to restore protein homeostasis in disease. Our research community thrives on the diversity of students and staff which helps to make the University of Dundee a UK university of choice for postgraduate research. We welcome applications from all talented individuals and are committed to widening access to those who have the ability and potential to benefit from higher education. How to apply Please contact the principal project supervisor to discuss your interest further, see supervisor details below. For general enquiries, contact SLS-PhDAdmin@dundee.ac.uk Supervisors Principal supervisor Person Dr Adrien Rousseau Principal Investigator/Senior Lecturer a.rousseau@dundee.ac.uk +44 (0)1382 384109

How membrane proteins are regulated – revealing the dynamic S-acyl proteome in plants

Funding – self-funded/externally sponsored applicants   (PhD Fees can be found here) Applications are accepted year round Standard Entry dates – January and September Applicants are expected to have a degree (equivalent of Honours or Masters) in a relevant discipline. S-acylation involves addition of fatty acids to sulfhydryl groups of cysteine residues within proteins, typically altering protein function by changing behaviour within cellular membranes. S-acylation is highly dynamic, with S-acyl groups able to be added and removed from proteins many times during their lifetime and on sub-second timescales. Over 15% of the cellular proteome (40% of the membrane proteome) is thought to be S-acylated in a typical eukaryote, placing S-acylation alongside phosphorylation or ubiquitination as ubiquitous post-translational modifications able to dictate protein activity or function. Many processes affecting climate change, human health or nutrition involve S-acylation such as plant development and architecture, cellulose synthesis (biofuels), plant resistance to pathogens, neuronal and cardiac function and many cancers. However, in contrast to other PTMs, S-acylation has far fewer investigatory tools available and is therefore comparatively understudied. We recently developed click chemistry tools to label S-acylated proteins and allow their detection. The aim of this project is to develop these tools further and use them to investigate protein S-acylation dynamics in plants at the individual protein and proteome level. Skills learned will include biochemistry, molecular biology, click chemistry and proteomics. You will join a diverse and collaborative lab with opportunities for international conference attendance and a wide range of scientific and transferrable skills training. Recent ~£65 million investment in the Advanced Plant Growth Centre and International Barley Hub ensure that cutting edge plant growth facilities are available, in addition to the world leading biochemical, molecular, computational and imaging expertise and facilities at Dundee. For further details and informal discussion prospective students are strongly encouraged to contact Dr Piers Hemsley (pahemsley@dundee.ac.uk) before submitting an application. Our research community thrives on the diversity of students and staff which helps to make the University of Dundee a UK university of choice for postgraduate research.  We welcome applications from all talented individuals and are committed to widening access to those who have the ability and potential to benefit from higher education. How to apply Please contact the principal project supervisor to discuss your interest further, see supervisor details below. For general enquiries, contact SLS-PhDAdmin@dundee.ac.uk Supervisors Principal supervisor Person Dr Piers Hemsley Reader p.a.hemsley@dundee.ac.uk +44 (0)1382 385399 2nd Supervisor:  Professor Nick Tomkinson (Strathclyde)

Phospho-regulation of kinetochore function during mitosis

Funding – self-funded/externally sponsored applicants   (PhD Fees can be found here) Applications are accepted year round Standard Entry dates – January and September Applicants are expected to have a degree (equivalent of Honours or Masters) in a relevant discipline. Accurate partition of the duplicated genome during cell division is crucial for cellular viability and organismal development. Chromosome mis-segregation is a major source of aneuploidy, and it is a hallmark of cancer, while in oocytes represents the major source of miscarriages and genetic disease. As cells enter mitosis, chromosomes undergo compaction and establish specialized connections with spindle microtubules. The connection between chromosomes and microtubules is mediated by a proteinaceous structure that associates with chromosomal DNA, called the kinetochore. Kinetochore composition and function needs to be tightly regulated during the cell cycle and kinetochore-specific kinases and phosphatases play a central role in this regulation. Despite advances in the identification of such kinases and phosphatases as well as their targeting mechanisms, their specific substrates and roles during mitosis are poorly understood. One key mitotic kinase involved in kinetochore function is polo-like kinase 1 (PLK1). While PLK1 plays critical roles during mitosis, how PLK1 achieves its different functions is not understood at the mechanistic level. Particularly, how PLK1 and counteracting phosphatases regulate kinetochore function through the different stages of mitosis is not clear. The aim of this research is to provide a mechanistic understanding of the chromosomal roles of PLK1 during mitosis by understanding how PLK1 phosphorylation of different kinetochore components impacts upon kinetochore function. The overarching objective of this research is to provide a mechanistic understanding of the chromosomal roles of PLK1 during mitosis by understanding how PLK1 phosphorylation of different kinetochore components impacts upon kinetochore function. My hypothesis is that different sets of substrates within the inner and outer kinetochore perform different, non-overlapping functions. Understanding why chromosome-associated PLK1 is vital at the molecular level will lead to a better understanding of mitosis. To understand why PLK1 is important during mitosis, we need a mechanistic description of the roles of PLK1 within the inner and the outer kinetochore, including its substrate proteins and the timing and impact of phosphorylation. The following aims will allow me to achieve the general objective: AIM 1. Identification of inner- and outer-kinetochore PLK1 substrates. As a first step towards understanding the specific role(s) PLK1 plays in the two kinetochore locations, we will focus on identifying inner and outer kinetochore PLK1-dependent phospho-sites. To guarantee a successful outcome, we will combine in vivo and in vitro analysis of kinetochore protein phosphorylation. AIM 2. Characterisation of kinetochore phospho-sites underlying the chromosome-specific mitotic roles of PLK1. Having identified the kinetochore PLK1 substrates, the next step will be to understand the impact of kinetochore PLK1 phosphorylation events during mitosis. We will assess the effect of mutating individual phospho-sites (or combinations) on the timing of mitotic progression, spindle assembly checkpoint, and kinetochore-microtubule attachments. AIM 3. Characterisation of PP2A/B56 as the PLK1-counteracting phosphatase. We will study the role of PP2A/B56 as the main PLK1 counteracting kinetochore phosphatase. We will identify which set of PLK1 substrates is subject to PP2A/B56 regulation and when this dephosphorylation happens during mitosis. Our research community thrives on the diversity of students and staff which helps to make the University of Dundee a UK university of choice for postgraduate research.  We welcome applications from all talented individuals and are committed to widening access to those who have the ability and potential to benefit from higher education. How to apply Please contact the principal project supervisor to discuss your interest further, see supervisor details below. For general enquiries, contact SLS-PhDAdmin@dundee.ac.uk Supervisors Principal supervisor Person Dr Fede Pelisch Principal Investigator/Senior Lecturer f.pelisch@dundee.ac.uk +44 (0)1382 388600 Second supervisor Person Professor Tomoyuki Tanaka Professor t.tanaka@dundee.ac.uk +44 (0)1382 385814

The role of shape and form in function of biological systems

Funding – self-funded/externally sponsored applicants   (PhD Fees can be found here) Applications are accepted year round Standard Entry dates – January and September Applicants are expected to have a degree (equivalent of Honours or Masters) in a relevant discipline. Since the pioneering work of D’Arcy Thompson more than a century ago, it has become clear that shape and form play a major role in determining proper function of living organisms. Our understanding of molecular processes that underpin life has greatly improved since early 1900s. However, many questions remain open on how molecular-level regulation controls the development of functional tissue and organ scale structures. For example, for a healthy individual, it is not only necessary to have a liver, but it must be the right shape and size and positioned at the right place. Answering questions of how tissues and organs acquire and regulate their size and shape requires combining biochemical and mechanical processes and thus necessitates input from both physics and molecular biology. Physics of active matter, i.e. collections of agents such as cells that can convert chemical energy into directed motion, has emerged as a powerful tool for modelling collective behaviours of cells in various biological scenarios. The aim of this project will be to develop and study models of active matter of various levels of complexity to gain understanding how collectives of active agents respond to the presence of curvature and, ultimately, drive the shape formation. This will be done in close collaboration with the experimental lab of Prof Januschke who specialises in studying development in fruit fly embryos, a commonly used model system for exploring collective cell processes. The PhD student will gain training in cutting edge physics of active matter applied to biological systems and advance computational methods and techniques used to model cell and tissue scale biophysical processes. In addition, they will learn how to work in a cross-disciplinary environment and closely interact with researchers in different disciplines. Computational proficiency and ability to work in a diverse team are all highly transferable skills that would make the student competitive for positions both in academia and industry. We are, therefore, seeking a highly-motivated student with training in physics or applied mathematics who is willing to closely collaborate with experimental biology labs. Our research community thrives on the diversity of students and staff which helps to make the University of Dundee a UK university of choice for postgraduate research.  We welcome applications from all talented individuals and are committed to widening access to those who have the ability and potential to benefit from higher education. How to apply Please contact the principal project supervisor to discuss your interest further, see supervisor details below. For general enquiries, contact SLS-PhDAdmin@dundee.ac.uk Supervisors Principal supervisor Person Professor Rastko Sknepnek Professor r.sknepnek@dundee.ac.uk +44 (0)1382 385699 Second supervisor Person Professor Jens Januschke Professor j.januschke@dundee.ac.uk +44 (0)1382 386169

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