polR, a pathway-specific transcriptional regulatory gene, positively controls polyoxin biosynthesis in Streptomyces cacaoi subsp. asoensis.
Li R, Xie Z, Tian Y, Yang H, Chen W, You D, Liu G, Deng Z, Tan H. Microbiology (Reading). 2009 Jun; 155(Pt 6):1819-1831. Epub 2009 Apr 21.