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Interaction of a Novel Zn2Cys6 Transcription Factor DcGliZ with Promoters in the Gliotoxin Biosynthetic Gene Cluster of the Deep-Sea-Derived Fungus . | LitMetric

Interaction of a Novel Zn2Cys6 Transcription Factor DcGliZ with Promoters in the Gliotoxin Biosynthetic Gene Cluster of the Deep-Sea-Derived Fungus .

Biomolecules

State Key Laboratory of Applied Microbiology Southern China, Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, Guangdong Open Laboratory of Applied Microbiology, Guangdong Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou 510070, China.

Published: December 2019

AI Article Synopsis

Article Abstract

Gliotoxin is an important epipolythiodioxopiperazine, which was biosynthesized by the gene cluster in . However, the regulatory mechanism of gliotoxin biosynthesis remains unclear. In this study, a novel Zn2Cys6 transcription factor DcGliZ that is responsible for the regulation of gliotoxin biosynthesis from the deep-sea-derived fungus was identified. DcGliZ was expressed in and effectively purified from inclusion bodies by refolding. Using electrophoretic mobility shift assay, we demonstrated that purified DcGliZ can bind to g, , and promoter regions in the cluster. Furthermore, the binding kinetics and affinity of DcGliZ protein with different promoters were measured by surface plasmon resonance assays, and the results demonstrated the significant interaction of DcGliZ with the and promoters. These new findings would lay the foundation for the elucidation of future gliotoxin biosynthetic regulation mechanisms in .

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7022936PMC
http://dx.doi.org/10.3390/biom10010056DOI Listing

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