A rational approach to a high-resolution structure of the multidrug transporter EmrE. Membrane proteins form only 0.3% of the available protein structures in the protein data bank (PDB), yet 30% of the proteins in the human genome and 50% of human drug targets are membrane proteins. Multidrug transporters are membrane proteins responsible for antibiotic resistance in humans. A high-resolution structure of a multidrug resistance protein, together with comprehensive biochemical characterization, w ....A rational approach to a high-resolution structure of the multidrug transporter EmrE. Membrane proteins form only 0.3% of the available protein structures in the protein data bank (PDB), yet 30% of the proteins in the human genome and 50% of human drug targets are membrane proteins. Multidrug transporters are membrane proteins responsible for antibiotic resistance in humans. A high-resolution structure of a multidrug resistance protein, together with comprehensive biochemical characterization, would enable a detailed understanding of how these protein functions. Potentially it could also aid in the development of specific inhibitors that would prevent EmrE (and perhaps other similar proteins) from carry out its harmful mission. Read moreRead less
Phloem unloading of sucrose: cloning, functional characterisation and regulation of novel membrane transporters. Sucrose is the principal form in which plant biomass, produced in photosynthetic leaves, is transported to non-photosynthetic organs for growth and storage. Sucrose transport proteins play pivotal roles in facilitating sucrose transport around plants. Hence activities of sucrose transporters directly impact on plant growth rates and crop yields. Our aim is to isolate hitherto unkno ....Phloem unloading of sucrose: cloning, functional characterisation and regulation of novel membrane transporters. Sucrose is the principal form in which plant biomass, produced in photosynthetic leaves, is transported to non-photosynthetic organs for growth and storage. Sucrose transport proteins play pivotal roles in facilitating sucrose transport around plants. Hence activities of sucrose transporters directly impact on plant growth rates and crop yields. Our aim is to isolate hitherto unknown membrane proteins that move sucrose at high rates between cells and discover their transport properties. Expected outcomes are to better understand mechanisms and regulation of sucrose transport and hence provide novel opportunities to enhance crop yield. The project will foster a productive international collaboration.Read moreRead less
A molecular structure-function investigation of major membrane channels involved in olfactory transduction. Olfactory receptor neurons are extraordinarily-sensitive sensors for detecting minute concentrations of odorant molecules. This project aims to extend our previous studies of these specialised mammalian olfactory cells by using state-of-the art technologies: electrophysiology (patch-clamp) and molecular biology (site-directed-mutagenesis), to investigate how the molecular structure of the ....A molecular structure-function investigation of major membrane channels involved in olfactory transduction. Olfactory receptor neurons are extraordinarily-sensitive sensors for detecting minute concentrations of odorant molecules. This project aims to extend our previous studies of these specialised mammalian olfactory cells by using state-of-the art technologies: electrophysiology (patch-clamp) and molecular biology (site-directed-mutagenesis), to investigate how the molecular structure of their ion channels (selective protein pores) and receptors contribute to the odorant-induced generation of electrical activity, which mediates our sense of smell (olfaction). The project has specific relevance for understanding olfaction, as well as relevance for other sensory systems and other ion channels.Read moreRead less
Special Research Initiatives - Grant ID: SR0354588
Funder
Australian Research Council
Funding Amount
$10,000.00
Summary
Integrated Nanoscale Biosystems Network (INBN). The INBN will integrate high-priority research, already identified by the ARC, in materials nanoscience and engineering with nanoscale biology. The INBN will provide the means to consolidate world-class multidisciplinary Australian research groups in existing Centres of Excellence, including several Federation Fellows, into a nanobiotechnology focus. The significant outcomes of INBN are the critical mass of outstanding researchers in the nanobiosci ....Integrated Nanoscale Biosystems Network (INBN). The INBN will integrate high-priority research, already identified by the ARC, in materials nanoscience and engineering with nanoscale biology. The INBN will provide the means to consolidate world-class multidisciplinary Australian research groups in existing Centres of Excellence, including several Federation Fellows, into a nanobiotechnology focus. The significant outcomes of INBN are the critical mass of outstanding researchers in the nanobiosciences, facilitation of innovative research to produce novel intellectual property and provision of pathways into collaborative research with international scientists and industry, and the training and development of the next generation scientists for this emerging discipline.
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Resurgent Sodium Currents in Peripheral Nerve Axons and Sensory Neurones. This project seeks evidence that unusual gating of sodium channels contributes to the hyperexcitability that results in spontaneous impulse activity in sensory axons. It asks whether axons normally behave as if they have this gating mode, whether it can be induced, whether any such behaviour is more prominent with sensory axons than motor, and whether the current can be measured directly in sensory neurones. The project is ....Resurgent Sodium Currents in Peripheral Nerve Axons and Sensory Neurones. This project seeks evidence that unusual gating of sodium channels contributes to the hyperexcitability that results in spontaneous impulse activity in sensory axons. It asks whether axons normally behave as if they have this gating mode, whether it can be induced, whether any such behaviour is more prominent with sensory axons than motor, and whether the current can be measured directly in sensory neurones. The project is the first to involve correlation of patch-clamp recordings with the behaviour of intact axons. Its outcomes will affect thought about sodium channel behaviour and may alter approaches to disorders of axonal excitability.Read moreRead less
Molecular microscopy: protein and membrane dynamics in resting and activated T cells. The aim of this research, to understand the molecular organization and dynamics of the plasma membrane that underlie the signal transduction events, is at the very heart of understanding cell communication. T cell recognition and activation initiates an adaptive immune response to invading pathogens and structurally altered proteins that can be found in cancers. By providing functional insights into the molecul ....Molecular microscopy: protein and membrane dynamics in resting and activated T cells. The aim of this research, to understand the molecular organization and dynamics of the plasma membrane that underlie the signal transduction events, is at the very heart of understanding cell communication. T cell recognition and activation initiates an adaptive immune response to invading pathogens and structurally altered proteins that can be found in cancers. By providing functional insights into the molecular mechanism of T cell activation, we will not only provide fundamental knowledge of receptor signalling but also specific details of T cell receptort triggering that may lead to the development of new therapeutic strategies to control T cell activation.Read moreRead less
Optimising Removal of Proteinaceous Foulants from Membranes. Removal of proteinacous foulants from membrane systems imposes both significant economic costs in terms of chemical usage as well as significant environmental costs in terms of water usage and production of effluents from the cleaning and rinsing waters. The outcome of this project should allow us to develop methods for the prediction and optimisation of membrane cleaning performance of relevance to major Australian industries includin ....Optimising Removal of Proteinaceous Foulants from Membranes. Removal of proteinacous foulants from membrane systems imposes both significant economic costs in terms of chemical usage as well as significant environmental costs in terms of water usage and production of effluents from the cleaning and rinsing waters. The outcome of this project should allow us to develop methods for the prediction and optimisation of membrane cleaning performance of relevance to major Australian industries including the dairy, food processing and water and waste water treatment industries.Read moreRead less
Optimisation of nutrient removal, membrane fouling and sludge dewatering in hybrid coagulation/submerged membrane bioreactor treatment of wastewaters. Submerged membrane bioreactor technology for the treatment of wastewaters is now a competitive technology with small footprint and generally high quality of treated effluent. Despite this, challenges remain in ensuring low effluent nutrient concentrations, minimal membrane fouling and acceptable excess sludge dewaterability. Addition of iron or a ....Optimisation of nutrient removal, membrane fouling and sludge dewatering in hybrid coagulation/submerged membrane bioreactor treatment of wastewaters. Submerged membrane bioreactor technology for the treatment of wastewaters is now a competitive technology with small footprint and generally high quality of treated effluent. Despite this, challenges remain in ensuring low effluent nutrient concentrations, minimal membrane fouling and acceptable excess sludge dewaterability. Addition of iron or aluminium-based coagulant chemicals can assist but many uncertainties with regard to choice of chemical, optimal dosing arrangements and membrane bioreactor operating conditions remain. Experimental and computational studies targeted at improving understanding and optimising performance will be undertaken through collaborative studies by the UNSW and Tsinghua University (Beijing) research team.Read moreRead less
The Development of New Carrier Technologies for Spray-Dried Fruit Extracts. This project aims to develop new carrier techniques for spray drying fruit extracts based on the use of natural fibres, with the aim of overcoming a key problem in the operation of spray dryers for producing powders, the deposition of particles on walls. Carriers are non-sticky materials that effectively dilute the stickiness of any materials. The significance is that it will use waste products from fruit processing (th ....The Development of New Carrier Technologies for Spray-Dried Fruit Extracts. This project aims to develop new carrier techniques for spray drying fruit extracts based on the use of natural fibres, with the aim of overcoming a key problem in the operation of spray dryers for producing powders, the deposition of particles on walls. Carriers are non-sticky materials that effectively dilute the stickiness of any materials. The significance is that it will use waste products from fruit processing (the fibres from skins) to overcome this problem, and it will also be possible to dry sticky materials using material from the fruit itself, rather than additives such as maltodextrin.Read moreRead less
Highly Efficient Nanomotors for Autonomous Cell Recognition and Isolation. This project aims to develop next-generation self-driven nanomotors capable of long-range motion with highly controlled directionality for cell recognition, transportation and separation in complex biological environments, to allow autonomous and seamless cell sorting with high accuracy. The anticipated goal of this project is to advance the field of nanotechnology and advanced manufacturing with potential to support new ....Highly Efficient Nanomotors for Autonomous Cell Recognition and Isolation. This project aims to develop next-generation self-driven nanomotors capable of long-range motion with highly controlled directionality for cell recognition, transportation and separation in complex biological environments, to allow autonomous and seamless cell sorting with high accuracy. The anticipated goal of this project is to advance the field of nanotechnology and advanced manufacturing with potential to support new applications and to value-add Australia’s advanced manufacturing industry, presenting new opportunities for Australian MedTech industries with innovative, disruptive technologies to address its unique needs and to claim Australia’s position within the competitive global market.Read moreRead less