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In September, PNAS Early Edition featured a paper from Matt Wolfgang’s lab describing the identification of RsmF, a member of the CsrA family of regulatory proteins. They demonstrate how RsmF and another CsrA family member, RsmA, function as dual post-transcriptional regulators to modulate biofilm formation by Pseudomonas aeruginosa. Postdoc Jeremiah Marden is co-first author on this paper, which you can read through PubMed.