Exposure to an extremely low-frequency electromagnetic field only slightly modifies the proteome of Chromobacterium violaceum ATCC 12472

Several studies of the physiological responses of different organisms exposed to extremely low-frequency electromagnetic fields (ELF-EMF) have been described. In this work, we report the minimal effects of in situ exposure to ELF-EMF on the global protein expression of Chromobacterium violaceum usin...

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Published in:Genetics and molecular biology 2015-06, Vol.38 (2), p.227-230
Main Authors: Baraúna, Rafael A., Santos, Agenor V., Graças, Diego A., Santos, Daniel M., Ghilardi Júnior, Rubens, Pimenta, Adriano M. C., Carepo, Marta S. P., Schneider, Maria P.C., Silva, Artur
Format: Article
Language:English
Subjects:
BIOCHEMISTRY & MOLECULAR BIOLOGY
C. violaceum
Chromobacterium violaceum
electromagnetic field
GENETICS & HEREDITY
proteomic analysis
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Summary:Several studies of the physiological responses of different organisms exposed to extremely low-frequency electromagnetic fields (ELF-EMF) have been described. In this work, we report the minimal effects of in situ exposure to ELF-EMF on the global protein expression of Chromobacterium violaceum using a gel-based proteomic approach. The protein expression profile was only slightly altered, with five differentially expressed proteins detected in the exposed cultures; two of these proteins (DNA-binding stress protein, Dps, and alcohol dehydrogenase) were identified by MS/MS. The enhanced expression of Dps possibly helped to prevent physical damage to DNA. Although small, the changes in protein expression observed here were probably beneficial in helping the bacteria to adapt to the stress generated by the electromagnetic field.
ISSN:1415-4757
1678-4685
1415-4757
1678-4685
DOI:10.1590/S1415-4757382220140240