A comparative analysis of the citrate permease P mRNA stability in Lactococcus lactis biovar diacetylactis and Escherichia coli.
نویسندگان
چکیده
The role of ribonucleases in the control of gene expression remains unknown in lactic acid bacteria. In the present work, we analysed the expression of the citP gene, which encodes the lactococcal citrate permease P, through the stability of the citQRP messenger in both Lactococcus lactis biovar diacetylactis (L. diacetylactis) and Escherichia coli. The chemical half-life for citQRP mRNA observed in L. diacetylactis wild-type strain was abnormally long for bacteria. It was even longer than that detected in E. coli RNase E or RNase III mutant strains. A model of processing and fate of RNA species containing citP gene is presented.
منابع مشابه
The role of Escherichia coli RNase E and RNase III in the processing of the citQRP operon mRNA from Lactococcus lactis biovar diacetylactis.
Citrate transport in Lactococcus lactis biovar diacetylactis (L. diacetylactis) is catalyzed by citrate permease P (CitP), which is encoded by the plasmidic citP gene. Two partial overlapping open reading frames citQ and citR are located upstream of citP. These two genes, together with citP, constitute the citQRPoperon. In this report it was shown that in L. diacetylactis and Escherichia coli, ...
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عنوان ژورنال:
- FEMS microbiology letters
دوره 172 2 شماره
صفحات -
تاریخ انتشار 1999