BIOLOGIE SYNTHETIQUE ET ANTIBIORESISTANCE
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Progress in DNA technology, analytical methods and computational tools is leading to new developments in synthetic biology and metabolic engineering, enabling new ways to produce molecules of industrial and therapeutic interest. Here, we review recent progress in both antibiotic production and strategies to counteract bacterial resistance to antibiotics. Advances in sequencing and cloning are increasingly enabling the characterization of antibiotic biosynthesis pathways, and new systematic methods for de novo biosynthetic pathway prediction are allowing the exploration of the metabolic chemical space beyond metabolic engineering.
Natural products derived from the secondary metabolism of microbes constitute a cornerstone of modern medicine. Engineering bugs to produce these products in high quantities is a major challenge for biotechnology, which has usually been tackled by either one of two strategies: iterative random mutagenesis or rational design. Recently, we analyzed the transcriptome of a Streptomyces clavuligerus strain optimized for production of the β-lactamase inhibitor clavulanic acid by multiple rounds of mutagenesis and selection, and discovered that the observed changes matched surprisingly well with simple changes that have been introduced into these strains by rational engineering.
This conference will focus on the advancement of synthetic biology, especially its application in the field of antibiotic production in filamentous fungi and actinomycete bacteria, including the implementation and modification of complex biosynthesis pathway modules in existing and new production hosts. Antibiotics production is regulated by complex networks and involves intricate multi-step biosynthetic machineries, as well as major reorganization of primary metabolic fluxes to redirect cellular metabolic resources towards their biosynthesis.