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FEBS Lett. 2011 Aug 4;585(15):2526-32. doi: 10.1016/j.febslet.2011.07.008. Epub 2011 Jul 13.

Bacillus subtilis MazF-bs (EndoA) is a UACAU-specific mRNA interferase.

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  • 1Center for Advanced Biotechnology and Medicine, Department of Biochemistry, Robert Wood Johnson Medical School, Piscataway, NJ 08854, USA.

Abstract

MazF is an mRNA interferase which cleaves mRNAs at a specific sequence. Here, we show that in contrast to MazF-ec from Escherichia coli, which specifically cleaves ACA sequences, MazF-bs from Bacillus subtilis is an mRNA interferase that specifically cleaves a five-base sequence, UACAU. MazF homologues widely prevailing in Gram-positive bacteria were found to be highly homologous to MazF-bs, suggesting that they may also have similar cleavage specificity. This cleavage site is over-represented in the B. subtilis genes associated with biosynthesis of secondary metabolites, suggesting that MazF-bs may be involved in the regulation of the production of secondary metabolites.

Copyright © 2011 Federation of European Biochemical Societies. Published by Elsevier B.V. All rights reserved.

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