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Synthesis of DnaK and GroEL in Escherichia coli cells exposed to different magnetic field signals. | LitMetric

Synthesis of DnaK and GroEL in Escherichia coli cells exposed to different magnetic field signals.

Bioelectrochemistry

Department of Evolutionary Experimental Biology, University of Bologna, via Selmi 3, 40126 Bologna, Italy.

Published: September 2006

AI Article Synopsis

Article Abstract

The effects of extremely low frequency magnetic field (ELF-MF)(1 mT, 50 Hz) on the heat shock protein (HSP) synthesis in Escherichia coli were investigated. Two magnetic field signals were studied: sinusoidal (SMF) and pulsed square wave (PMF). It was found that bacteria exposed to SMF showed a significantly higher level of DnaK and GroEL proteins as compared to sham-exposed bacteria as revealed by Western blot, whereas a lower level was observed after PMF exposure. Similar results were obtained when bacterial cells were exposed to heat shock (HS) after ELF-MF exposure: again SMF and PMF resulted in an increase and in a reduction of HSP amount in comparison with sham control, respectively. In conclusion, the MF influences the synthesis of HSPs in E. coli in a way that critically depends on the signal characteristics.

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Source
http://dx.doi.org/10.1016/j.bioelechem.2005.11.006DOI Listing

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