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Research article2009Peer reviewedOpen access

Impact of Phenolic Substrate and Growth Temperature on the Arthrobacter chlorophenolicus Proteome

Unell, Maria; Abraham, Paul E.; Shah, Manesh; Zhang, Bing; Rueckert, Christian; VerBerkmoes, Nathan C.; Jansson, Janet K.


We compared the Arthrobacter chlorophenolicus proteome during growth on 4-chlorophenol, 4-nitrophenol, or phenol at 5 and 28 degrees C, both for the wild-type and a mutant strain with mass spectrometry based proteomics. A label-free workflow employing spectral counting identified 3749 proteins across all growth conditions, representing over 70% of the predicted genome and 739 of these proteins form the core proteome. Statistically significant differences were found in the proteomes of cells grown under different conditions including differentiation of hundreds of unknown proteins. The 4-chlorophenol-degradation pathway was confirmed, but not that for phenol.


Arthrobacter chlorophenolicus; 4-chlorophenol; 4-nitrophenol; phenol; shotgun proteomics; 2D-LC-ES-MS/MS; hydroxyquinol dioxygenase

Published in

Journal of Proteome Research
2009, Volume: 8, number: 4, pages: 1953-1964

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      Environmental Sciences related to Agriculture and Land-use

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