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Bacillus is remarkable for its extracellular enzyme production (Priest, 1977). When Bacillus cells exhaust the nutrients of the environment and enter into the stationary phase, neutral and alkaline proteases encoded by nprE and aprE respectively are produced and secreted to the outside environment (Chaloupka and Kreckova, 1966; Din et al., 1969). The(More)
Bacillus subtilis aconitase, encoded by the citB gene, is a bifunctional enzyme, which can not only interconvert citrate and isocitrate, but also has the RNA binding function similar to the eukaryotic protein IRP-1 (iron regulatory protein 1). Homology analysis between eukaryotic aconitase and B. subtilis aconitase indicates that the amino acids 741–745(More)
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