The gram-negative bacterial species Salmonella enterica and Escherichia coli are members
of the family Enterobacteriaceae that spend a good part of their lives as residents of animal …

Bacteria in the genus Brucella are important human and veterinary pathogens. The abortion
and infertility they cause in food animals produce economic hardships in areas where the …

The σS (or RpoS) subunit of RNA polymerase is the master regulator of the general stress
response in Escherichia coli. While nearly absent in rapidly growing cells, σS is strongly …

Cells receive a wide variety of cellular and environmental signals, which are often
processed combinatorially to generate specific genetic responses. Here we explore …

Sialic acids are structurally unique nine-carbon keto sugars occupying the interface between
the host and commensal or pathogenic microorganisms. An important function of host sialic …

▪ Abstract Nitrogen limitation in Escherichia coli controls the expression of about 100 genes
of the nitrogen regulated (Ntr) response, including the ammonia-assimilating glutamine …

Marine dissolved organic matter (DOM) contains as much carbon as the Earth's atmosphere,
and represents a critical component of the global carbon cycle. To better define microbial …

Most bacteria spend the majority of their time in prolonged states of very low metabolic
activity and little or no growth, in which electron donors, electron acceptors and/or nutrients …

We present a comprehensive overview of the hierarchical network of intracellular processes
revolving around central nitrogen metabolism in Escherichia coli. The hierarchy intertwines …

Bacteria possess a signal transduction system, referred to as a two-component system, for
adaptation to external stimuli. Each two-component system consists of a sensor protein …