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. Author manuscript; available in PMC: 2020 Mar 1.
Published in final edited form as: Mol Microbiol. 2018 Dec 12;111(3):570–587. doi: 10.1111/mmi.14174

Figure 1. Simplified model of the SPI1 T3SS regulatory circuit.

Figure 1.

Blue lines indicate transcriptional regulation, green lines indicate regulation of HilD at the protein level, and red lines indicate regulation of hilD translation. Dotted lines indicate that the exact mechanism of regulation is not known and is likely indirect.