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The YmdB phosphodiesterase is a global regulator of biofilm-specific mRNA levels in Bacillus subtilis


ABSTRACT: Detailed description (other than provided below) of growth conditions, RNA preparation, cDNA synthesis and hybridization conditions can be found in the submitted paper. GSM956794-GSM956801: Bacillus subtilis 168 wild type and its ymdB derivative strain were grown in CSE-Glu medium and cells were harvested at mid exponential (OD600 ~0.8) and early stationary phase (OD600 ~2.2-2.4). For both time points, 4 biological replicates were used, resulting 4 slides for both exponential and stationary phase. Dye swaps are included in both experiments. GSM1011025-GSM1011032: Bacillus subtilis GP966 antibiotic tagged synthetic wild type and its ymdB E39Q point mutant strain GP969 were grown in CSE-Glu medium and cells were harvested at mid exponential (OD600 ~0.8) and early stationer phase (OD600 ~2.2-2.4). For both time points, 4 biological replicates were used, resulting 4 slides for both exponential and stationer phase. Dye swaps are included in both experiments.

ORGANISM(S): Bacillus subtilis

SUBMITTER: Akos Kovacs 

PROVIDER: E-GEOD-39142 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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The YmdB phosphodiesterase is a global regulator of late adaptive responses in Bacillus subtilis.

Diethmaier Christine C   Newman Joseph A JA   Kovács Akos T AT   Kaever Volkhard V   Herzberg Christina C   Rodrigues Cecilia C   Rodrigues Cecilia C   Boonstra Mirjam M   Kuipers Oscar P OP   Lewis Richard J RJ   Stülke Jörg J  

Journal of bacteriology 20131025 2


Bacillus subtilis mutants lacking ymdB are unable to form biofilms, exhibit a strong overexpression of the flagellin gene hag, and are deficient in SlrR, a SinR antagonist. Here, we report the functional and structural characterization of YmdB, and we find that YmdB is a phosphodiesterase with activity against 2',3'- and 3',5'-cyclic nucleotide monophosphates. The structure of YmdB reveals that the enzyme adopts a conserved phosphodiesterase fold with a binuclear metal center. Mutagenesis of a c  ...[more]

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