A mixed double negative feedback loop between the sRNA MicF and the global regulator Lrp. [2012] Title A mixed double negative feedback loop between the sRNA MicF and the global regulator Lrp.Mol. Microbiol. 84 414-427. Author Erik Holmqvist, Cecilia Unoson, Johan Reimegard, and E Gerhart H Wagner Related Products and Services PUREfrex®