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Series GSE47182 Query DataSets for GSE47182
Status Public on May 23, 2013
Title Comparative analysis of the response to iron-limitation in the absence of oxygen in R. sphaeroides [Microarray]
Organism Cereibacter sphaeroides 2.4.1
Experiment type Expression profiling by array
Summary High intracellular levels of unbound iron can contribute to the production of reactive oxygen species (ROS) in the Fenton reaction, while depletion of iron limits the availability of iron containing proteins, some of which have important functions in the oxidative stress defense. Vice versa increased ROS levels lead to damage of proteins with iron sulfur centers. Thus organisms have to coordinate and balance their responses to oxidative stress and iron availability. Our knowledge on the molecular mechanisms underlying the coregulation of these responses is still limited. To discriminate between a direct cellular response to iron limitation and indirect responses, which are the consequence of increased levels of ROS, we compared the response of the alpha proteobacterium Rhodobacter sphaeroides to iron limitation in presence or absence of oxygen. While some genes respond to iron limitation exclusively or much stronger in presence of oxygen, other genes show much stronger response in anaerobic conditions. Remarkably few genes show even opposite response to iron depletion in presence or absence of iron.
 
Overall design RNA samples collected from anaerobically grown cultures in presence or absence of iron were analyzed by two-color microarrays
 
Contributor(s) Remes B, Klug G
Citation(s) 33064275
Submission date May 22, 2013
Last update date Dec 22, 2020
Contact name Gabriele Klug
E-mail(s) [email protected]
Organization name Justus-Liebig University Gießen
Department Molecular- and Microbiology
Street address Heinrich-Buff-Ring 26-32
City Gießen
ZIP/Postal code 35392
Country Germany
 
Platforms (1)
GPL15457 Klug lab - Rhodobacter sphaeroides - 15k array Version 2 (144 sRNA; Agilent-027061)
Samples (2)
GSM1146199 R. sphaeroides 2.4.1 -Fe vs. R. sphaeroides 2.4.1 replicate 1
GSM1146200 R. sphaeroides 2.4.1 -Fe vs. R. sphaeroides 2.4.1 replicate 2
This SubSeries is part of SuperSeries:
GSE47450 Comparative analysis of the response to iron-limitation in the absence of oxygen in R. sphaeroides
Relations
BioProject PRJNA205040

Download family Format
SOFT formatted family file(s) SOFTHelp
MINiML formatted family file(s) MINiMLHelp
Series Matrix File(s) TXTHelp

Supplementary file Size Download File type/resource
GSE47182_RAW.tar 3.1 Mb (http)(custom) TAR (of TXT)
Processed data included within Sample table

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