title: Expression of primary sigma factor (PSF) and PSF-like sigma factors in the cyanobacterium Synechocystis sp. strain PCC 6803.
abstract: Large amounts of sigA mRNA, encoding the primary sigma factor (PSF) in Synechocystis sp. strain PCC 6803, accumulated under standard growth conditions, while stress conditions like heat or high salinity led to a rapid decrease in sigA mRNA content. The sigB, sigC, sigD, and sigE genes, encoding PSF-like sigma factors, were under strict physiological control.
authors.affiliation: Plant Physiology and Molecular Biology, Department of Biology, University of Turku, FIN-20014 Turku, Finland.
authors.forename: Ilona
authors.initials: I
authors.lastname: Tuominen
authors.forename: Esa
authors.initials: E
authors.lastname: Tyystjärvi
authors.forename: Taina
authors.initials: T
authors.lastname: Tyystjärvi
mesh_terms: D001426:Bacterial Proteins / Q000235:genetics*; D004268:DNA-Binding Proteins; D012321:DNA-Directed RNA Polymerases / Q000235:genetics*; D008027:Light; D012333:RNA, Messenger / Q000032:analysis*; D012808:Sigma Factor / Q000235:genetics*; D014158:Transcription, Genetic
chemical_list: D001426:Bacterial Proteins; D004268:DNA-Binding Proteins; D012333:RNA, Messenger; C079011:SigB protein, Bacteria; D012808:Sigma Factor; C081467:sigC protein, Bacteria; C111259:sigE protein, Bacteria; C081775:RNA polymerase sigma 70; D012321:DNA-Directed RNA Polymerases