Why is the photosynthetic CO2-fixing enzyme, Rubisco, so inefficient? Dissection of the catalytic chemistry by computational simulation and experimental testing. Fixation of CO2 by the enzyme Rubisco during photosynthesis produces organic compounds which feed all life. Despite this critical role, Rubisco catalyses its reaction sluggishly and, worse, discriminates poorly between CO2 and O2, leading to useless products. Our combined expertise equips us to analyse Rubisco's mechanism using quantum- ....Why is the photosynthetic CO2-fixing enzyme, Rubisco, so inefficient? Dissection of the catalytic chemistry by computational simulation and experimental testing. Fixation of CO2 by the enzyme Rubisco during photosynthesis produces organic compounds which feed all life. Despite this critical role, Rubisco catalyses its reaction sluggishly and, worse, discriminates poorly between CO2 and O2, leading to useless products. Our combined expertise equips us to analyse Rubisco's mechanism using quantum-chemical methods and then test predictions experimentally. We will capitalise on our previous successful studies of Rubisco by addressing emergent issues which are the keys to understanding catalytic efficiency and CO2/O2 selectivity: the roles of a carbamylated lysine; the way CO2 addition is rendered irreversible; and the spin inversion inherent in O2 addition.Read moreRead less
Linkage Infrastructure, Equipment And Facilities - Grant ID: LE0989920
Funder
Australian Research Council
Funding Amount
$750,000.00
Summary
Microbial and Cellular Imaging and Analysis Facility. The Microbial and Cellular Imaging and Analysis Facility will rapidly establish itself as one of Australia's premier science facilities. It will provide the capacity to investigate the structure and molecular dynamics of viruses and microbial, human, animal and plant cells with unprecedented high resolution in both pure and applied research settings, guided by Australia's leading experts in many research strengths. This facility addresses a c ....Microbial and Cellular Imaging and Analysis Facility. The Microbial and Cellular Imaging and Analysis Facility will rapidly establish itself as one of Australia's premier science facilities. It will provide the capacity to investigate the structure and molecular dynamics of viruses and microbial, human, animal and plant cells with unprecedented high resolution in both pure and applied research settings, guided by Australia's leading experts in many research strengths. This facility addresses a current unmet need for scientists in this country and will provide cutting-edge technologies to Australian researchers so they can better detect, understand, and treat human, animal and plant diseases and the environmental impact of climate change.Read moreRead less