GEO DataSets

Analysis of magnetotactic bacterium strain AMB-1 grown under various initial iron-rich conditions. These bacteria have a high-iron requirement for magnetosome synthesis, several orders of magnitude greater than that for E coli. Results provide insight into specific iron uptake systems in AMB-1.

Organism:

Magnetospirillum magneticum AMB-1

Type:

Expression profiling by array, log2 ratio, 8 dose sets

Platform:

GPL3072

Series:

GSE3914

8 Samples

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(Submitter supplied) Deatails of the series are available in the publications Suzuki et al., The Journal of Bacteriology “Global gene expression analysis of iron-inducible genes in Magnetospirillum magneticum AMB-1”, accepted for the publication. The gene expression profiles were categorized into 5 patterns. Abstract of the publication: "feo, tpd and ftr which encode ferrous transporters were up-regulated under iron-rich conditions.The concomitant rapid iron uptake and magnetite formation suggest that these uptake systems serve as iron supply lines for magnetosome synthesis." Keywords: iron response

Organism:

Paramagnetospirillum magneticum AMB-1

Type:

Expression profiling by array

Dataset:

GDS2351

Platform:

GPL3072

8 Samples

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(Submitter supplied) Investigation of whole genome expression changes in Magnetospririllum magneticum mutants, probing the role of the CtrA regulatory pathway. The mutants are further described in a manuscript submitted for publication at J. Bacteriology. Developmental events across the prokaryotic life cycle are highly regulated at the transcriptional and post-translational levels. Key elements of a few regulatory networks are conserved among phylogenetic groups of bacteria, although the features controlled by these conserved systems are as diverse as the organisms encoding them. more...

Organism:

Paramagnetospirillum magneticum AMB-1

Type:

Expression profiling by array

Platform:

GPL15199

16 Samples

Download data: PAIR