Two membrane-bound transcription factors regulate expression of various type-IV-pili surface structures in Sulfolobus acidocaldarius [PDF]
In Archaea and Bacteria, gene expression is tightly regulated in response to environmental stimuli. In the thermoacidophilic crenarchaeon Sulfolobus acidocaldarius nutrient limitation induces expression of the archaellum, the archaeal motility structure.
Lisa Franziska Bischof +2 more
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Pyruvate decarboxylase (PDC) is a key enzyme involved in ethanol fermentation, and it catalyzes the decarboxylation of pyruvate to acetaldehyde and CO2.
Faisal Alharbi +3 more
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Identification of NAD-RNA species and ADPR-RNA decapping in Archaea
NAD is a coenzyme central to metabolism that also serves as a 5′-terminal cap for bacterial and eukaryotic transcripts. Thermal degradation of NAD can generate nicotinamide and ADP-ribose (ADPR).
José Vicente Gomes-Filho +9 more
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A Second Terminal Oxidase in Sulfolobus acidocaldarius [PDF]
We previously found that the soxABCD operon encodes a quinol oxidase complex in Sulfolobus acidocaldarius and this enzyme was purified and characterized. In this study, we have used a cloning procedure based on the conservation of oxidase sequences and the polymerase chain reaction to isolate a new gene (soxM) encoding a subunit of another terminal ...
Lubben, M. +5 more
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Protein phosphorylation in the Archaebacterium Sulfolobus acidocaldarius [PDF]
A number of proteins of the sulphur-dependent archaebacterium Sulfolobus acidocaldarius are phosphorylated in vivo. The extent of phosphorylation depends on the state of growth and is most intense in the late exponential phase. Some of the phosphorylated proteins are strongly associated with the bacterial membrane.
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Functional characterization of the origin of replication of pRN1 from Sulfolobus islandicus REN1H1. [PDF]
Plasmid pRN1 from Sulfolobus islandicus REN1H1 is believed to replicate by a rolling circle mechanism but its origin and mechanism of replication are not well understood.
Chijioke J Joshua +2 more
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Metabolism of Pentose Sugars in the Hyperthermophilic Archaea Sulfolobus solfataricus and Sulfolobus acidocaldarius [PDF]
We have previously shown that the hyperthermophilic archaeon, Sulfolobus solfataricus, catabolizes d-glucose and d-galactose to pyruvate and glyceraldehyde via a non-phosphorylative version of the Entner-Doudoroff pathway. At each step, one enzyme is active with both C6 epimers, leading to a metabolically promiscuous pathway.
Charlotte E M, Nunn +6 more
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Stay or Go: Sulfolobales Biofilm Dispersal Is Dependent on a Bifunctional VapB Antitoxin
A type II VapB14 antitoxin regulates biofilm dispersal in the archaeal thermoacidophile Sulfolobus acidocaldarius through traditional toxin neutralization but also through noncanonical transcriptional regulation.
April M. Lewis +5 more
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Characterization of the RNase P RNA of Sulfolobus acidocaldarius [PDF]
RNase P is the ribonucleoprotein enzyme that cleaves precursor sequences from the 5' ends of pre-tRNAs. In Bacteria, the RNA subunit is the catalytic moiety. Eucaryal and archaeal RNase P activities copurify with RNAs, which have not been shown to be catalytic.
T E, LaGrandeur +3 more
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Identification of Archaea species from hot spring water in Hammam AL-Allel at Mosul Governorate
Isolate, Identify of some species belonging to Archaea from water of hot and sulphid springs in Hammam Al-Allel City/ Nenavah Governorate. Seventy five samples were collected from hot springs during 2012. The Archaea species were isolated using ordinary
Mohammed A . AL-Qatan +2 more
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