title: A role for the essential YycG sensor histidine kinase in sensing cell division.
abstract: The YycG sensor histidine kinase co-ordinates cell wall remodelling with cell division in Gram-positive bacteria by controlling the transcription of genes for autolysins and their inhibitors. Bacillus subtilis YycG senses cell division and is enzymatically activated by associating with the divisome at the division septum. Here it is shown that the cytoplasmic PAS domain of this multi-domain transmembrane kinase is a determining factor translocating the kinase to the division septum. Furthermore, translocation to the division septum, per se, is insufficient to activate YycG, indicating that specific interactions and/or ligands produced there are required to stimulate kinase activity. N-terminal truncations of YycG lose negative regulation of their activity inferring that this regulation is accomplished through its transmembrane and extramembrane domains interacting with the membrane associated YycH and YycI proteins that do not localize to the divisome. The data indicate that YycG activity in non-dividing cells is suppressed by its interaction with YycH and YycI and its activation is co-ordinated to cell division in dividing cells by specific interactions that occur within the divisome.
authors.affiliation: Department of Molecular and Experimental Medicine, The Scripps Research Institute, La Jolla, CA 92011, USA.
authors.forename: Tatsuya
authors.initials: T
authors.lastname: Fukushima
authors.forename: Isako
authors.initials: I
authors.lastname: Furihata
authors.forename: Robyn
authors.initials: R
authors.lastname: Emmins
authors.forename: Richard A
authors.initials: RA
authors.lastname: Daniel
authors.forename: James A
authors.initials: JA
authors.lastname: Hoch
authors.forename: Hendrik
authors.initials: H
authors.lastname: Szurmant
mesh_terms: D001412:Bacillus subtilis / Q000502:physiology*; D002455:Cell Division; D000071677:Histidine Kinase; D054730:Protein Interaction Domains and Motifs; D025941:Protein Interaction Mapping; D011494:Protein Kinases / Q000235:genetics / Q000378:metabolism*; D017384:Sequence Deletion
chemical_list: D011494:Protein Kinases; D000071677:Histidine Kinase