P. Szafranski et al., PRINCIPAL TRANSCRIPTION SIGMA-FACTORS OF PSEUDOMONAS-PUTIDA STRAINS MT-2 AND G1 ARE SIGNIFICANTLY DIFFERENT, Gene, 204(1-2), 1997, pp. 133-138
The rpoD gene coding for the primary transcription sigma factor, sigma
(70), and its entire operon were cloned from strain mt-2 of the purple
soil bacterium Pseudomonas putida. Comparison of the deduced amino ac
id sequence of Ppmt-2 sigma(70) with that of sigma(70) from P. putida
strain G1 shows that the two proteins differ in their primary structur
e, molecular weight, and isoelectric point. The significance of this d
ifference is discussed in terms of bacterial taxonomy and transcriptio
n regulation. (C) 1997 Elsevier Science B.V.