Rrp2, a sigma54-dependent transcriptional activator of Borrelia burgdorferi, activates rpoS in an enhancer-independent manner.
Blevins JS, Xu H, He M, Norgard MV, Reitzer L, Yang XF. Rrp2, a sigma54-dependent transcriptional activator of Borrelia burgdorferi, activates rpoS in an enhancer-independent manner. J Bacteriol. 2009 Apr; 191(8):2902-5.