@article{glaeser_protein_2007,
        title = {Protein synthesis patterns reveal a complex regulatory response to singlet oxygen in Rhodobacter},
        author = {Jens Glaeser and Monica Zobawa and Friedrich Lottspeich and Gabriele Klug},
        journal = {Journal of proteome research},
        month = {July},
        note = {PMID: 17536848},
        pages = {2460-71},
        volume = 6,
        year = 2007,
        issn = {15353893},
	abstract = {Singlet oxygen (1O2) is a stress factor and signal in the facultative phototrophic bacterium Rhodobacter sphaeroides. In vivo protein labeling with L-[35S]-methionine and analysis by two-dimensional gel electrophoresis revealed that the synthesis of 61 proteins was changed in response to 1O2. After 1O2 treatment, protein synthesis patterns were distinct from those after H2O2 treatment but similar to those after high light exposure. This indicates regulatory mechanisms selective for different reactive oxygen species (ROS) and a response to light partly mediated by 1O2. Analysis of mutant strains support that the response to 1O2 is regulated mainly by rpoE (sigma E), but also a modulation of the sigma E dependent response by other factors and the existence of sigma E independent responses. The involvement of the RNA chaperon Hfq in the 1O2 response implies a role of small regulatory RNAs.},
	biburl = {http://www.bibsonomy.org/bibtex/27ffd100e93e552721654848a86efd795/mikromolbio},
	keywords = {Bacterial Proteome Protein_Biosynthesis Light Electrophoresis Gel Singlet_Oxygen Bacterial_Proteins Two-Dimensional Cations IFZ Divalent Gene_Expression_Regulation Rhodobacter_sphaeroides Transcription_Factors Reactive_Oxygen_Species Catalase Mutation Messenger Sigma_Factor RNA Hydrogen_Peroxide Host_Factor_1_Protein}
}

@article{hendrischk_phra_2007,
        title = {The phrA gene of Rhodobacter sphaeroides encodes a photolyase and is regulated by singlet oxygen and peroxide in a sigma(E)-dependent manner},
        author = {Anne-Kathrin Hendrischk and Stephan Braatsch and Jens Glaeser and Gabriele Klug},
        journal = {Microbiology (Reading, England)},
        month = {June},
        note = {PMID: 17526841},
        pages = {1842-51},
        volume = 153,
        year = 2007,
        issn = {13500872},
	abstract = {The genome of the facultatively photosynthetic bacterium Rhodobacter sphaeroides encodes three proteins of the photolyase/cryptochrome family. This paper shows that phrA (RSP2143) encodes a functional photolyase, which is an enzyme that repairs UV radiation-induced DNA damage in a blue light dependent manner. Expression of phrA is upregulated in response to light, with no photoreceptor or the photosynthetic electron transport being involved. The results reveal that singlet oxygen and hydrogen peroxide dependent signals are transmitted by the sigma(E) factor and the anti-sigma(E) factor ChrR affecting phrA expression, while superoxide anions do not stimulate phrA expression. Thus, the sigma(E) regulon is involved not only in the response to singlet oxygen but also in the hydrogen peroxide response.},
	biburl = {http://www.bibsonomy.org/bibtex/2f1831a18a9ee9dba81778273d45463ab/mikromolbio},
	keywords = {Up-Regulation IFZ Rhodobacter_sphaeroides Peroxides beta-Galactosidase Gene_Expression_Regulation Molecular_Sequence_Data Bacterial Deoxyribodipyrimidine_Photo-Lyase Amino_Acid_Sequence Superoxides Singlet_Oxygen Reporter Anti-Bacterial_Agents Light Microbial_Viability Genes Transcription_Factors Sigma_Factor Sequence_Alignment Artificial_Gene_Fusion Bacterial_Proteins}
}