Structure and Regulation of the<i>gab</i>Gene Cluster, Involved in the γ-Aminobutyric Acid Shunt, Are Controlled by a σ<sup>54</sup>Factor in<i>Bacillus thuringiensis</i>Li Zhu, Dafang Huang, Fuping Song et al.|Journal of Bacteriology|2009Cited by 33