Rgg-like transcriptional regulators can be found in a variety of gram-positive bacteria Where ropB regulates speB protease production in S. pyogenes, a roughly equivalent secretory control mechanism can be seen in Rggs regulation of gtfG glucosyltransferase production in S. gordonii, in the manner in which gadR regulates acid resistance in Lactococcus lactis, how lasX regulates expression of lantibiotic lactocin S in Lactobacillus sakei, and MutRs regulation of mutacin in S. mutans Sequentially, these genes are all localized contiguously to their respective subject of regulation and share promoters localized contiguously to inverted repeat regions.