Correction for Christen et al., DgrA is a member of a new family of cyclic diguanosine monophosphate receptors and controls flagellar motor function in Caulobacter crescentus

MICROBIOLOGY. For the article “DgrA is a member of a new family of cyclic diguanosine monophosphate receptors and controls flagellar motor function in Caulobacter crescentus,” by Matthias Christen, Beat Christen, Martin G. Allan, Marc Folcher, Paul Jenö, Stephan Grzesiek, and Urs Jenal, which appeared in issue 10, March 6, 2007, of Proc Natl Acad Sci USA (104:4112–4117; first published February 27, 2007; 10.1073/pnas.0607738104), on page 4112, column 1, the key term “c-di-Ghp” should instead appear as “c-di-GMP.” The online version has been corrected.