title: Serine/threonine protein kinase SpkA in Synechocystis sp. strain PCC 6803 is a regulator of expression of three putative pilA operons, formation of thick pili, and cell motility.
abstract: Previous studies showed that a Ser/Thr protein kinase, SpkA, in Synechocystis sp. strain PCC 6803 is involved in cell motility. The present study, in which DNA microarray analysis and electron microscopy were used, demonstrated that SpkA regulates the expression of putative pilA9-pilA10-pilA11-slr2018, pilA5-pilA6, and pilA1-pilA2 operons and is essential for the formation of thick pili.
authors.affiliation: National Institute for Basic Biology, Myodaiji, Okazaki 444-8585, Japan.
authors.forename: Vladimir B
authors.initials: VB
authors.lastname: Panichkin
authors.forename: Satoko
authors.initials: S
authors.lastname: Arakawa-Kobayashi
authors.forename: Toku
authors.initials: T
authors.lastname: Kanaseki
authors.forename: Iwane
authors.initials: I
authors.lastname: Suzuki
authors.forename: Dmitry A
authors.initials: DA
authors.lastname: Los
authors.forename: Sergey V
authors.initials: SV
authors.lastname: Shestakov
authors.forename: Norio
authors.initials: N
authors.lastname: Murata
mesh_terms: D001426:Bacterial Proteins / Q000502:physiology*; D010861:Fimbriae, Bacterial / Q000235:genetics* / Q000648:ultrastructure; D020869:Gene Expression Profiling; D015964:Gene Expression Regulation, Bacterial; D046529:Microscopy, Electron, Transmission; D009068:Movement; D020411:Oligonucleotide Array Sequence Analysis; D009876:Operon; D011494:Protein Kinases / Q000502:physiology*; D012329:RNA, Bacterial / Q000032:analysis; D012333:RNA, Messenger / Q000032:analysis; D046939:Synechocystis / Q000235:genetics* / Q000502:physiology* / Q000648:ultrastructure; D014158:Transcription, Genetic
chemical_list: D001426:Bacterial Proteins; D012329:RNA, Bacterial; D012333:RNA, Messenger; D011494:Protein Kinases; C422202:spkA protein, Synechocystis