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The archaeal exosome core is a hexameric ring structure with three catalytic subunits
The exosome is a 3′ → 5′ exoribonuclease complex involved in RNA processing. We report the crystal structure of the RNase PH core complex of the Sulfolobus solfataricus exosome determined at aExpand
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BLUF: a novel FAD-binding domain involved in sensory transduction in microorganisms.
A novel FAD-binding domain, BLUF, exemplified by the N-terminus of the AppA protein from Rhodobacter sphaeroides, is present in various proteins, primarily from Bacteria. The BLUF domain is involvedExpand
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An exosome‐like complex in Sulfolobus solfataricus
We present the first experimental evidence for the existence of an exosome‐like protein complex in Archaea. In Eukarya, the exosome is essential for many pathways of RNA processing and degradation.Expand
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Exoribonuclease R Interacts with Endoribonuclease E and an RNA Helicase in the Psychrotrophic Bacterium Pseudomonas syringae Lz4W*
Endoribonuclease E, a key enzyme involved in RNA decay and processing in bacteria, organizes a protein complex called degradosome. In Escherichia coli, Rhodobacter capsulatus, and StreptomycesExpand
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RNA polyadenylation in Archaea: not observed in Haloferax while the exosome polynucleotidylates RNA in Sulfolobus
The addition of poly(A) tails to RNA is a phenomenon common to all organisms examined so far. No homologues of the known polyadenylating enzymes are found in Archaea and little is known concerningExpand
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A single flavoprotein, AppA, integrates both redox and light signals in Rhodobacter sphaeroides
Anoxygenic photosynthetic proteobacteria exhibit various light responses, including changing levels of expression of photosynthesis genes. However, the underlying mechanisms are largely unknown. WeExpand
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Thioredoxins in bacteria: functions in oxidative stress response and regulation of thioredoxin genes
Thioredoxins fulfill a number of different important cellular functions in all living organisms. In bacteria, thioredoxin genes are often regulated by external factors. In turn, thioredoxinsExpand
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Overlapping alternative sigma factor regulons in the response to singlet oxygen in Rhodobacter sphaeroides.
Organisms performing photosynthesis in the presence of oxygen have to cope with the formation of highly reactive singlet oxygen ((1)O(2)) and need to mount an adaptive response to photooxidativeExpand
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An mRNA degrading complex in Rhodobacter capsulatus.
An RNA degrading, high molecular weight complex was purified from Rhodobacter capsulatus. N-terminal sequencing, glycerol-gradient centrifugation, and immunoaffinity purification as well asExpand
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Photooxidative stress‐induced and abundant small RNAs in Rhodobacter sphaeroides
Exposure to oxygen and light generates photooxidative stress by the bacteriochlorophyll a mediated formation of singlet oxygen (1O2) in Rhodobacter sphaeroides. Our study reports the genome‐wideExpand
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