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Plenary Lecture 4: Plenary Lecture 4: Birger Lindberg Moller, P450 in Green Biotechnology and sustainable chemistry
Time:
Friday, 04/July/2025:
9:00am - 10:00am
Session Chair: Prof. Amit Pandey, University of Bern, Switzerland
Location:Auditorium 003
199 Places
Session Topics:
3. Cytochrome P450 Bioinformatics and Evolution, 5. Cytochrome P450 Protein Interactions, 6. Catalytic Mechanisms of Cytochrome P450
Session Abstract
The large scale sustainable global production system chosen by nature is based on photosynthesis. We should learn from nature! The chloroplast organelle represents a light-driven power house synthesizing basic metabolites such as amino acids, lipids and diterpene backbones. These may be channeled into the production of high value compounds by targeted transfer of their biosynthetic pathways into the chloroplast with electron transfer to cytochrome P450s proceeding directly from reduced ferredoxin. Pathway discovery for even structurally complex diterpenoids such as forskolin, triptolide, ginkgolides and paclitaxel is facilitated e.g. by the discovered organization of the biosyntetic genes in gene clusters and by access to tissue and cell type specific transcriptomics data. The remarkable multifunctional catalytic properties of many P450s open the doors to functional expression of entire pathways into heterologous hosts and their chloroplasts based on a remarkable low number of genes. An additional benefit of using chloroplasts as a production system is their in nature demonstrated ability to accumulate molar levels of natural products as demonstrated by the accumulation of large amounts of vanillin in chloroplast-derived phenyloplasts in the mature pods of vanilla orchids. The storage of the high value natural products produced in confined dense biocondensates at seemingly impossible molar concentrations may be orchestrated by the use of natural deep eutectic solvents thereby avoiding auto-toxicity issues and disruption of cell homeostasis. Multi-stream product lines based on separate commercialization of the isolated high value compounds and of improved bulk products increase the economic potential of light driven production systems and speed-up commercial scale-up and thereby the transition to a biobased society.. If the production is made in engineered microalgae, these may be grown environmentally contained on ocean-based floating platforms e.g. anchored to the artificial energy islands to be built in the North Sea. All the process steps discussed above need a lot of optimizations over the next few years to make synthetic biology the envisioned basis for environmental benign green future production systems. On the research side, this requires cross-disciplinary discussions between scientists from the natural sciences, humanities, social sciences and law. In this way, we may secure more opmimal uses and thus social acceptance of synthetic biology as one of the technologies that may help us to adress many of the challenges humanities are facing.
Presentations
9:00am - 10:00am
P450 in green biotechnology and sustainable chemistry
Birger Lindberg Møller
The large scale sustainable global production system chosen by nature is based on photosynthesis. We should learn from nature! The chloroplast organelle represents a light-driven power house synthesizing basic metabolites such as amino acids, lipids and diterpene backbones. These may be channeled into the production of high value compounds by targeted transfer of their biosynthetic pathways into the chloroplast with electron transfer to cytochrome P450s proceeding directly from reduced ferredoxin. Pathway discovery for even structurally complex diterpenoids such as forskolin, triptolide, ginkgolides and paclitaxel is facilitated e.g. by the discovered organization of the biosyntetic genes in gene clusters and by access to tissue and cell type specific transcriptomics data. The remarkable multifunctional catalytic properties of many P450s open the doors to functional expression of entire pathways into heterologous hosts and their chloroplasts based on a remarkable low number of genes. An additional benefit of using chloroplasts as a production system is their in nature demonstrated ability to accumulate molar levels of natural products as demonstrated by the accumulation of large amounts of vanillin in chloroplast-derived phenyloplasts in the mature pods of vanilla orchids. The storage of the high value natural products produced in confined dense biocondensates at seemingly impossible molar concentrations may be orchestrated by the use of natural deep eutectic solvents thereby avoiding auto-toxicity issues and disruption of cell homeostasis. Multi-stream product lines based on separate commercialization of the isolated high value compounds and of improved bulk products increase the economic potential of light driven production systems and speed-up commercial scale-up and thereby the transition to a biobased society.. If the production is made in engineered microalgae, these may be grown environmentally contained on ocean-based floating platforms e.g. anchored to the artificial energy islands to be built in the North Sea. All the process steps discussed above need a lot of optimizations over the next few years to make synthetic biology the envisioned basis for environmental benign green future production systems. On the research side, this requires cross-disciplinary discussions between scientists from the natural sciences, humanities, social sciences and law. In this way, we may secure more opmimal uses and thus social acceptance of synthetic biology as one of the technologies that may help us to adress many of the challenges humanities are facing.