Development of Genetically Encoded Biosensors for Reporting the Methyltransferase-Dependent Biosynthesis of Semisynthetic Macrolide Antibiotics.

Development of Genetically Encoded Biosensors for Reporting the Methyltransferase-Dependent Biosynthesis of Semisynthetic Macrolide Antibiotics.
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DOI:
10.1021/acssynbio.1c00151
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发表时间:
2021-10-15
影响因子:
4.7
通讯作者:
Williams GJ
Williams GJ
中科院分区:
生物学2区
文献类型:
--
作者:
Li Y;Reed M;Wright HT;Cropp TA;Williams GJ

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Clarithromycin is an improved semi-synthetic analogue of the naturally occurring macrolide, erythromycin. The subtle modification of a methyl group on the C-6 hydroxyl group endows the molecule with improved acid stability and results in a clinically useful antibiotic. Here we show that the effector specificity of the biosensor protein, MphR, can be evolved to selectively recognize clarithromycin, and therefore report on the production of this molecule in vivo. In addition, a crystal structure of the evolved variant illustrates the molecular basis for selectivity and provides a guide for the evolution of new metabolic function using this biosensor.
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