title: Cell cycle-dependent dynamic localization of a bacterial response regulator with a novel di-guanylate cyclase output domain.
abstract: Pole development is coordinated with the Caulobacter crescentus cell cycle by two-component signaling proteins. We show that an unusual response regulator, PleD, is required for polar differentiation and is sequestered to the cell pole only when it is activated by phosphorylation. Dynamic localization of PleD to the cell pole provides a mechanism to temporally and spatially control the signaling output of PleD during development. Targeting of PleD to the cell pole is coupled to the activation of a C-terminal guanylate cyclase domain, which catalyzes the synthesis of cyclic di-guanosine monophosphate. We propose that the local action of this novel-type guanylate cyclase might constitute a general regulatory principle in bacterial growth and development.
authors.affiliation: Division of Molecular Microbiology, Biozentrum, University of Basel, 4056 Basel, Switzerland.
authors.forename: Ralf
authors.initials: R
authors.lastname: Paul
authors.forename: Stefan
authors.initials: S
authors.lastname: Weiser
authors.forename: Nicholas C
authors.initials: NC
authors.lastname: Amiot
authors.forename: Carmen
authors.initials: C
authors.lastname: Chan
authors.forename: Tilman
authors.initials: T
authors.lastname: Schirmer
authors.forename: Bernd
authors.initials: B
authors.lastname: Giese
authors.forename: Urs
authors.initials: U
authors.lastname: Jenal
mesh_terms: D001426:Bacterial Proteins / Q000378:metabolism*; D016935:Caulobacter crescentus / Q000201:enzymology / Q000235:genetics* / Q000378:metabolism; D002453:Cell Cycle / Q000502:physiology*; D006152:Cyclic GMP / Q000031:analogs & derivatives* / Q000096:biosynthesis; D006160:Guanosine Triphosphate / Q000378:metabolism; D006162:Guanylate Cyclase / Q000378:metabolism*; D000071677:Histidine Kinase; D010766:Phosphorylation; D011494:Protein Kinases / Q000378:metabolism
chemical_list: D001426:Bacterial Proteins; C096455:PleD protein, Caulobacter crescentus; C062025:bis(3',5')-cyclic diguanylic acid; D006160:Guanosine Triphosphate; D011494:Protein Kinases; D000071677:Histidine Kinase; D006162:Guanylate Cyclase; D006152:Cyclic GMP