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Two Bacillus subtilis genes, designated resD and resE, encode proteins that are similar to those of two-component signal transduction systems and play a regulatory role in respiration. The overlapping resD-resE genes are transcribed during vegetative growth from a very weak promoter directly upstream of resD. They are also part of a larger operon that(More)
The Pho regulon of Bacillus subtilis is controlled by three two-component signal-transduction systems: PhoP/PhoR, ResD/ResE, and the phosphorelay leading to the phosphorylation of SpoOA. Two of these systems act as positive regulators, while the third is involved in negative regulation of the Pho regulon. Under phosphate-starvation-induction conditions, the(More)
Bacillus subtilis has an alkaline phosphatase (APase) gene family composed of at least four genes. All members of this gene family are expressed postexponentially, either in response to phosphate starvation or sporulation induction or, in some cases, in response to both. The phoA gene (formerly called phoAIV) and the phoB gene (formerly called phoAIII)(More)
Sporulation-induced alkaline phosphatases (APases) of Bacillus subtilis require the products of the sporulation stage-0 genes and certain stage-II genes, including the spoIIA operon, for induction. Mutations in either sapA or sapB bypass this requirement [Piggot and Taylor, J. Gen. Microbiol. 10 (1977) 69-80], resulting in APase production in a spoIIA sapA(More)
The aim of this investigation was to determine whether tumour necrosis factor-alpha (TNF-α) has any effect on endothelial progenitor cells (EPCs). Total mononuclear cells were isolated from peripheral blood by Ficoll density gradient centrifugation, and then the cells were plated on fibronectin-coated culture dishes. After 7 days culture, attached cells(More)
An experiment to search for light sterile neutrinos is conducted at a reactor with a thermal power of 2.8 GW located at the Hanbit nuclear power complex. The search is done with a detector consisting of a ton of Gd-loaded liquid scintillator in a tendon gallery approximately 24 m from the reactor core. The measured antineutrino event rate is 1976 per day(More)
The pink pineapple mealybug (PPM), Dysmicoccus brevipes (Cockerell) (Hemiptera: Pseudococcidae), is a widespread plant-sucking insect of considerable concern because it transmits the pineapple mealybug wilt-associated virus. Its distribution is closely linked with its host, the pineapple [Ananas comosus (L.) Merrill] because of its wingless and(More)
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