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Table 2 Relative levels of differentially regulated proteins in the wild type and ΔarcA mutant of E. coli K12.

From: Role of the ArcAB two-component system in the resistance of Escherichia colito reactive oxygen stress

Bacterial strain   Wild type ΔarcA
Treatment   -H2O2 + H2O2 -H2O2 + H2O2
Protein FliC 100 37.9 ± 16.7 188.9 ± 29.8 139.9 ± 57.8§
  GltI 100 2555.5 ± 1343.1 892.0 ± 555.8 440.3 ± 202.2
  OppA 100 717.5 ± 390.5 205.2 ± 127.3 183.1 ± 67.9
  1. The level of each protein in the untreated wild type E. coli is arbitrarily set as 100, and levels of proteins in other samples are expressed as relative to the level in the untreated E. coli. Results are the average of three to five independent experiments (biological repeats) with standard deviation. Level differs significantly from that of untreated wild type E. coli; and § level differs significantly from that of wild type E. coli treated with H2O2 (p < 0.05, Student's t-test).