Conductance states of a brain glutamine transporter. Brain transporters are the target for many neuroactive drugs that are used to treat anxiety, depression and other psychotic disorders. Transport processes are also targeted to deliver neurotransmitter precursors to the brain to treat disorders such as Parkinson's disease. In this project we will study a transport process crucial for the function of neurons that release glutamate and GABA (gamma-aminobutyric acid) as neurotransmitters. The stud ....Conductance states of a brain glutamine transporter. Brain transporters are the target for many neuroactive drugs that are used to treat anxiety, depression and other psychotic disorders. Transport processes are also targeted to deliver neurotransmitter precursors to the brain to treat disorders such as Parkinson's disease. In this project we will study a transport process crucial for the function of neurons that release glutamate and GABA (gamma-aminobutyric acid) as neurotransmitters. The study of this transport process will be important for understanding disorders like epilepsy and other disorders affecting neuronal excitability.Read moreRead less
Identification of structural proteins in the tissue cyst wall of Toxoplasma gondii. Most infections with Toxoplasma gondii are asymptomatic, however, infection during pregnancy can lead to miscarriage or blindness, deafness and mental retardation in the developing baby. Furthermore, in AIDS patients, toxoplasmosis is the leading cause of fatal encephalitis as the normally dormant tissue cysts are reactivated in the absence of an effective immune system. In Australia, it has been estimated that ~ ....Identification of structural proteins in the tissue cyst wall of Toxoplasma gondii. Most infections with Toxoplasma gondii are asymptomatic, however, infection during pregnancy can lead to miscarriage or blindness, deafness and mental retardation in the developing baby. Furthermore, in AIDS patients, toxoplasmosis is the leading cause of fatal encephalitis as the normally dormant tissue cysts are reactivated in the absence of an effective immune system. In Australia, it has been estimated that ~30% of the population is infected with T. gondii and the occurrence of congenital toxoplasmosis is 0.2% of live births, which translates to roughly 500 cases/year. Our research will identify structural proteins in Toxoplasma cyst walls that will lead to the design of new strategies to control the diseases caused by these parasites.Read moreRead less
Single Molecule Studies of Replisomal Function. It has recently become possible to watch the copying of DNA molecules with a specialized microscope in real time. This process requires assembly of a complex molecular machine on the DNA, followed by triggering of its function, and yields exquisitely detailed information about how the machine works. In this new collaboration between scientists in Australia and the U.S.A., we will assemble these machines on single DNA molecules, watch how they work ....Single Molecule Studies of Replisomal Function. It has recently become possible to watch the copying of DNA molecules with a specialized microscope in real time. This process requires assembly of a complex molecular machine on the DNA, followed by triggering of its function, and yields exquisitely detailed information about how the machine works. In this new collaboration between scientists in Australia and the U.S.A., we will assemble these machines on single DNA molecules, watch how they work and simultaneously measure the very small forces that the machines generate. This will give Australian scientists access to a new technology for studying molecular machines.Read moreRead less