title: NMR studies of the sporulation protein SpoIIAA: implications for the regulation of the transcription factor sigmaF in Bacillus subtilis.
abstract: SpoIIAA participates in a four-component mechanism for phosphorylation-dependent transcription control at the outset of sporulation. We report the refinement of the solution structure of SpoIIAA by using the automated iterative NOE assignment method ARIA. To complement the structural data, the protein dynamics were determined by measuring the T1, T2 and NOE of the backbone 15N-nuclei. The refined structure permits a discussion of the structural features that are important for the function of SpoIIAA in the regulation of the sporulation sigma factor sigmaF, and for homologous regulatory pathways present in B. subtilis and in other bacilli.
authors.affiliation: European Molecular Biology Laboratory, Heidelberg, Germany.
authors.forename: H
authors.initials: H
authors.lastname: Kovacs
authors.forename: D
authors.initials: D
authors.lastname: Comfort
authors.forename: M
authors.initials: M
authors.lastname: Lord
authors.forename: M
authors.initials: M
authors.lastname: Yudkin
authors.forename: I D
authors.initials: ID
authors.lastname: Campbell
authors.forename: M
authors.initials: M
authors.lastname: Nilges
mesh_terms: D001412:Bacillus subtilis / Q000737:chemistry*; D001426:Bacterial Proteins / Q000737:chemistry*; D001665:Binding Sites; D009682:Magnetic Resonance Spectroscopy / Q000379:methods*; D008958:Models, Molecular; D010766:Phosphorylation; D011487:Protein Conformation; D012808:Sigma Factor / Q000737:chemistry*; D014157:Transcription Factors; D014158:Transcription, Genetic
chemical_list: D001426:Bacterial Proteins; D012808:Sigma Factor; D014157:Transcription Factors; C092468:spoIIR protein, Bacillus subtilis; C030069:spore-specific proteins, Bacillus