TABLE 1.

Sigma factor expression in R. capsulatus

GeneProduct and functionaTranscript levels (log phase, stationary phase)Transcript fold changeb
SB1003ctrASB1003 vs ctrA (log phase)SB1003 vs ctrA (stationary phase)Stationary phase vs log phase (SB1003)
rcc00458RpoHII, stress response ECF sigma factor (18)4.60, 12.023.81, 14.431.2−1.22.6
rcc00568RpoN, nitrogen fixation sigma factor (2, 14, 25)0.25, 0.330.31, 0.55−1.2−1.71.3
rcc00699σ24 ECF sigma factor2.61, 4.252.64, 4.740−1.11.6
rcc02291EcfG-like sigma factor (ECF15), stress response? (51)0.76, 1.290.82, 1.97−1.1−1.51.7
rcc02637σ24 ECF sigma factor6.12, 22.768.45, 27.74−1.4−1.23.7
rcc02724ECF sigma factor ?0.35, 0.600.48, 0.60−1.401.7
rcc02811RpoH, heat shock ECF sigma factor (16)8.75, 15.6710.70, 20.88−1.2−1.31.8
rcc03054RpoD, major vegetative sigma factor (39)7.80, 10.809.35, 12.05−1.2−1.11.4
  • a The potential functions are discussed further in the text.

  • b Positive values indicate higher transcript levels in the wild type, and negative values indicate higher levels in the ctrA mutant.