This group studies how organisms sense environmental signals and transduce the signals into changes in gene expression and cell physiology. The group has continued their characterization of the two regulators central to the Escherichia coli response to oxidative stress: OxyR, a 34 kDa transcriptional activator which is switched on by oxidation, and OxyS, a novel 109 nucleotide RNA regulator which acts as an activator and repressor of gene expression. In addition to studying the mechanisms of OxyR and OxyS action, the group has begun to determine what regulators are important to the response to hydrogen peroxide in Saccharomyces cerevisiae. Using Arabidopsis thaliana as a model system, the group is also characterizing mutants defective in their developmental response to blue light.

Agency
National Institute of Health (NIH)
Institute
Eunice Kennedy Shriver National Institute of Child Health & Human Development (NICHD)
Type
Intramural Research (Z01)
Project #
1Z01HD001608-06
Application #
2575699
Study Section
Special Emphasis Panel (CBMB)
Project Start
Project End
Budget Start
Budget End
Support Year
6
Fiscal Year
1996
Total Cost
Indirect Cost
City
State
Country
United States
Zip Code
Hemm, Matthew R; Paul, Brian J; Schneider, Thomas D et al. (2008) Small membrane proteins found by comparative genomics and ribosome binding site models. Mol Microbiol 70:1487-501
Kawano, Mitsuoki; Aravind, L; Storz, Gisela (2007) An antisense RNA controls synthesis of an SOS-induced toxin evolved from an antitoxin. Mol Microbiol 64:738-54
Wang, Xunde; Mukhopadhyay, Partha; Wood, Matthew J et al. (2006) Mutational analysis to define an activating region on the redox-sensitive transcriptional regulator OxyR. J Bacteriol 188:8335-42
Tjaden, Brian; Goodwin, Sarah S; Opdyke, Jason A et al. (2006) Target prediction for small, noncoding RNAs in bacteria. Nucleic Acids Res 34:2791-802
Hu, Zonglin; Zhang, Aixia; Storz, Gisela et al. (2006) An antibody-based microarray assay for small RNA detection. Nucleic Acids Res 34:e52
Storz, G; Opdyke, J A; Wassarman, K M (2006) Regulating bacterial transcription with small RNAs. Cold Spring Harb Symp Quant Biol 71:269-73
Storz, Gisela; Altuvia, Shoshy; Wassarman, Karen M (2005) An abundance of RNA regulators. Annu Rev Biochem 74:199-217
Kawano, Mitsuoki; Reynolds, April A; Miranda-Rios, Juan et al. (2005) Detection of 5'- and 3'-UTR-derived small RNAs and cis-encoded antisense RNAs in Escherichia coli. Nucleic Acids Res 33:1040-50
Kawano, Mitsuoki; Storz, Gisela; Rao, B Sridhar et al. (2005) Detection of low-level promoter activity within open reading frame sequences of Escherichia coli. Nucleic Acids Res 33:6268-76
Wood, Matthew J; Storz, Gisela (2005) Oxygen, metabolism, and gene expression: the T-Rex connection. Structure 13:2-4

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