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Clinical isolates of the porcine pathogen Actinobacillus pleuropneumoniae often form adherent colonies on agar plates due to expression of an operon, pgaABCD, encoding a poly-N-acetylglucosamine (PGA) extracellular matrix. The adherent colony phenotype, which correlates with the ability to form a bi...
ORGANISM(S): Actinobacillus pleuropneumoniae 
Increasing numbers of small proteins with diverse physiological roles are being identified and characterized in both prokaryotic and eukaryotic systems, but the origins and evolution of these proteins remain unclear. Recent genomic sequence analyses in several organisms suggest that new functions en...
ORGANISM(S): Escherichia coli 
2023-03-31 | PXD040161 | Pride
The Rhodopseudomonas palustris transcriptional regulator RpaR responds to the RpaI-synthesized quorum-sensing signal p-coumaroyl-homoserine lactone (pC-HSL). Other characterized RpaR homologs respond to fatty acyl-HSLs. We show here that RpaR functions as a transcriptional activator, which binds dir...
ORGANISM(S): Rhodopseudomonas palustris 
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