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Cloning techniques produce FDA-approved antibiotic

and van der Donk were able to determine not only the minimal set of genes required for fosfomycin biosynthesis, but also the function of some of these genes.

"Our goal now is to produce fosfomycin in Escherichia coli so that we can use various protein and metabolic engineering tools to manipulate the fosfomycin biosynthetic pathway," said Zhao, who also is an affiliate of the university's Institute for Genomic Biology. "Eventually, we should be able to produce fosfomycin in a cost-effective manner and create more potent derivatives of it."

Previously, four essential genes and a portion of fosfomycin's biosynthetic pathway had been proposed, but researchers were unable to produce fosfomycin in a non-native host. Zhao's findings indicate that the presence of additional genes that result in a revised mechanism is crucial for successful fosfomycin biosynthesis.
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Source:University of Illinois at Urbana-Champaign


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