The role of HP1 alpha dimerisation in maintaining chromatin structure. Heterochromatin protein 1 alpha (HP1a) is an architectural protein that decorates three-dimensional genome organisation and through self-association into HP1a dimers regulates global gene expression. While there is extensive biochemical evidence on how HP1a molecules bind DNA, dimerise and bridge nucleosomes close together, we still do not know how HP1a regulates higher order chromatin structure in the context of a living cel ....The role of HP1 alpha dimerisation in maintaining chromatin structure. Heterochromatin protein 1 alpha (HP1a) is an architectural protein that decorates three-dimensional genome organisation and through self-association into HP1a dimers regulates global gene expression. While there is extensive biochemical evidence on how HP1a molecules bind DNA, dimerise and bridge nucleosomes close together, we still do not know how HP1a regulates higher order chromatin structure in the context of a living cell. Thus, by use of cutting-edge fluorescence microscopy methods, the overall aim of this research project is to determine the biophysical mechanism by which the HP1a monomer to dimer transition spatially and temporally modulates live cell chromatin network organisation to ensure faithful transmission of the genome.Read moreRead less
Tracking DNA repair dynamics in the nuclear landscape of a living cell. This project aims to track DNA repair factor recruitment in the nuclear landscape of a living cell and quantify the role of nucleus architecture in maintenance of genome integrity. By coupling advanced fluorescence microscopy with a novel DNA double strand break inducible cell system, this project expects to uncover how the nucleus spatially coordinates DNA damage detection, assessment and repair in real time. This research ....Tracking DNA repair dynamics in the nuclear landscape of a living cell. This project aims to track DNA repair factor recruitment in the nuclear landscape of a living cell and quantify the role of nucleus architecture in maintenance of genome integrity. By coupling advanced fluorescence microscopy with a novel DNA double strand break inducible cell system, this project expects to uncover how the nucleus spatially coordinates DNA damage detection, assessment and repair in real time. This research is important because DNA damage threatens organism survival and this project has the potential to define how this genomic threat is resolved at the single molecule level. The benefit of this research is a fundamental insight into DNA repair biology and development of imaging technology to quantify genome function.Read moreRead less
Linkage Infrastructure, Equipment And Facilities - Grant ID: LE210100046
Funder
Australian Research Council
Funding Amount
$289,381.00
Summary
A fast fluorescence lifetime imaging microscope to track protein dynamics. This project aims to establish a fast fluorescence lifetime imaging microscope that can track the intracellular journey of a protein throughout the entire structural framework of a living cell. By coupling single particle tracking technology with a cutting-edge fluorescence lifetime camera, this one-of-a-kind microscope will enable protein mobility and interaction to be spatially mapped with unprecedented temporal resolut ....A fast fluorescence lifetime imaging microscope to track protein dynamics. This project aims to establish a fast fluorescence lifetime imaging microscope that can track the intracellular journey of a protein throughout the entire structural framework of a living cell. By coupling single particle tracking technology with a cutting-edge fluorescence lifetime camera, this one-of-a-kind microscope will enable protein mobility and interaction to be spatially mapped with unprecedented temporal resolution. The benefit of this technology is that it will enable scientists in Australia to image, for the first time, the biophysical mechanism by which a protein navigates intracellular architecture to regulate a complex biological function at the single molecule level.Read moreRead less
Nuclear architecture in a living cell facilitates navigation of the genome. This project aims to investigate the role of nuclear architecture in regulating genome function by development of a new microscopy method to quantify the diffusive route of fluorescent proteins in live cells. The anticipated outcomes of this project include an insight into how chromatin dynamics facilitate DNA target search and an analytical tool for cell biologists to probe how genomes work in their natural environment ....Nuclear architecture in a living cell facilitates navigation of the genome. This project aims to investigate the role of nuclear architecture in regulating genome function by development of a new microscopy method to quantify the diffusive route of fluorescent proteins in live cells. The anticipated outcomes of this project include an insight into how chromatin dynamics facilitate DNA target search and an analytical tool for cell biologists to probe how genomes work in their natural environment (the cell nucleus).Read moreRead less
Understanding how mitochondria divide. This project aims to investigate the molecular mechanism by which mitochondria divide. Mitochondria are the powerhouse within our cells, and they grow and divide in our cells to ensure that they are transferred to daughter cells and also so that older mitochondria can be turned over. The project plans to build on the discovery of mitochondrial membrane proteins that are involved in fission. The results of the project could provide fundamental new knowledge ....Understanding how mitochondria divide. This project aims to investigate the molecular mechanism by which mitochondria divide. Mitochondria are the powerhouse within our cells, and they grow and divide in our cells to ensure that they are transferred to daughter cells and also so that older mitochondria can be turned over. The project plans to build on the discovery of mitochondrial membrane proteins that are involved in fission. The results of the project could provide fundamental new knowledge into how the mitochondrial division machine assembles and how mitochondrial fate is determined.Read moreRead less
Deciphering new regulators of lipid metabolism: a focus on lipid droplets . Lipid droplets store lipids in cells and the mitochondria break down this lipid to generate energy. Both organelles are critical for energy metabolism and cell survival. This project aims to determine the proteins that regulate the interaction between mitochondria and lipid droplets, and how these proteins regulate metabolism. It is anticipated that this project will identify the essential components of lipid droplet-mit ....Deciphering new regulators of lipid metabolism: a focus on lipid droplets . Lipid droplets store lipids in cells and the mitochondria break down this lipid to generate energy. Both organelles are critical for energy metabolism and cell survival. This project aims to determine the proteins that regulate the interaction between mitochondria and lipid droplets, and how these proteins regulate metabolism. It is anticipated that this project will identify the essential components of lipid droplet-mitochondria interactions and their impact on regulating cellular lipid metabolism. The intended outcome of this project is to provide fundamental new knowledge in understanding how organelles interact and how lipid metabolism is regulated. This knowledge has applications for the primary industries and biotechnology sector.Read moreRead less
Characterising the lipid droplet-mitochondria proteome. This project aims to determine the mechanisms by which the mitochondria and lipid droplets associate, and how this interaction influences lipid metabolism. Both critical for survival, lipid droplets are the bulk energy store in cells and the mitochondria break down this lipid to generate energy. It is anticipated that this project will identify the proteins that are critical for regulating contact between these organelles and the consequenc ....Characterising the lipid droplet-mitochondria proteome. This project aims to determine the mechanisms by which the mitochondria and lipid droplets associate, and how this interaction influences lipid metabolism. Both critical for survival, lipid droplets are the bulk energy store in cells and the mitochondria break down this lipid to generate energy. It is anticipated that this project will identify the proteins that are critical for regulating contact between these organelles and the consequences if this process becomes dysregulated. The project expects to provide fundamental new knowledge in understanding how organelles interact and how lipid metabolism is regulated. This knowledge has applications for the primary industries and biotechnology sector.Read moreRead less
Development of technologies to monitor multimolecular complexes. Development of technologies to monitor multimolecular complexes. This project aims to develop technologies to monitor how proteins and their interacting molecules (such as hormones) form multi-component complexes, and how these complexes function in the cell, including movement from the cell surface, into different cellular compartments and back up to the surface. These technologies are expected to enable monitoring in live cells i ....Development of technologies to monitor multimolecular complexes. Development of technologies to monitor multimolecular complexes. This project aims to develop technologies to monitor how proteins and their interacting molecules (such as hormones) form multi-component complexes, and how these complexes function in the cell, including movement from the cell surface, into different cellular compartments and back up to the surface. These technologies are expected to enable monitoring in live cells in real-time with high sensitivity. This project could have broad benefits for and affect study of all aspects of the life sciences at the cellular and molecular levels. How these protein complexes function in cells underpins much of our understanding of biology, and technological tools.Read moreRead less
Discovery Early Career Researcher Award - Grant ID: DE180100219
Funder
Australian Research Council
Funding Amount
$343,551.00
Summary
Molecular mechanism for the regulation of Polycomb repressive complex 2. This project aims to determine how the histone methyltransferase Polycomb repressive complex 2 (PRC2) is regulated. The project expects to generate new knowledge in transcription regulation and epigenetics. The intended outcome is to enhance the national capabilities in two important fields, Polycomb biology and cryo-electron microscopy (cryo-EM). This should provide significant benefits, including strengthening of the epig ....Molecular mechanism for the regulation of Polycomb repressive complex 2. This project aims to determine how the histone methyltransferase Polycomb repressive complex 2 (PRC2) is regulated. The project expects to generate new knowledge in transcription regulation and epigenetics. The intended outcome is to enhance the national capabilities in two important fields, Polycomb biology and cryo-electron microscopy (cryo-EM). This should provide significant benefits, including strengthening of the epigenetic community through the development of innovative research program in Polycomb biology and the establishment of a national world-class cryo-EM community.Read moreRead less
Novel tools and nanotechnology to navigate intracellular trafficking. This project aims to investigate how material accesses different compartments inside cells, also known as trafficking. Using immunology, cell biology and nanotechnology, the project will manipulate intracellular trafficking to achieve specific cellular functions. Outcomes will also form the basis of intellectual property development for new products by Australian biotechnology companies. These products will improve veterinary ....Novel tools and nanotechnology to navigate intracellular trafficking. This project aims to investigate how material accesses different compartments inside cells, also known as trafficking. Using immunology, cell biology and nanotechnology, the project will manipulate intracellular trafficking to achieve specific cellular functions. Outcomes will also form the basis of intellectual property development for new products by Australian biotechnology companies. These products will improve veterinary and human health services, leading to increased productivity.Read moreRead less