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Complete genome sequence of the hyperthermophilic archaeon Thermococcus kodakaraensis KOD1 and comparison with Pyrococcus genomes.
TLDR
There are several intriguing proteins that might be responsible for the specific trait of the genus Thermococcus, such as proteins involved in additional pyruvate oxidation, nucleotide metabolisms, unique or additional metal ion transporters, improved stress response system, and a distinct restriction system.
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Insights into the evolution of Archaea and eukaryotic protein modifier systems revealed by the genome of a novel archaeal group
TLDR
The genome sequence of Candidatus ‘Caldiarchaeum subterraneum’ is shown that represents an uncultivated crenarchaeotic group and indicates that a prototype of the eukaryotic protein modifier system is present in the Archaea.
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Targeted Gene Disruption by Homologous Recombination in the Hyperthermophilic Archaeon Thermococcus kodakaraensis KOD1
TLDR
The gene targeting system developed in this study provides a long-needed tool in the research on hyperthermophilic archaea and will open the way to a systematic, genetic approach for the elucidation of unknown gene function in these organisms.
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The crystal structure of an esterase from the hyperthermophilic microorganism Pyrobaculum calidifontis VA1 explains its enantioselectivity
TLDR
With the elucidated structure of the PestE enzyme, experimental results about enantioselectivity towards the two model substrate classes could be explained by molecular modeling.
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Low-Temperature Lipase from Psychrotrophic Pseudomonas sp. Strain KB700A
TLDR
KB-Lip has evolved to function in cold environments, in accordance with the temperature range for growth of its psychrotrophic host, strain KB700A, and was found to be a member of Subfamily I.3 lipase.
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Archaeal Type III RuBisCOs Function in a Pathway for AMP Metabolism
The type III ribulose-1,5-bisphosphate carboxylase-oxygenase (RuBisCO) present in the archaeon Thermococcus kodakaraensis was found to participate in adenosine 5′-monophosphate (AMP) metabolism, a…
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Pyrobaculum calidifontis sp. nov., a novel hyperthermophilic archaeon that grows in atmospheric air.
TLDR
The results indicate that isolate VA1 represents a novel species, named Pyrobaculum calidifontis, from a terrestrial hot spring in the Philippines, andylogenetic analysis based on 16S rRNA sequences indicated that strain VA1 exhibited close relationships to species of the genus PyRobaculum.
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Continuous hydrogen production by the hyperthermophilic archaeon, Thermococcus kodakaraensis KOD1.
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Extremely Stable and Versatile Carboxylesterase from a Hyperthermophilic Archaeon
TLDR
It is found that the hyperthermophilic archaeon Pyrobaculum calidifontis VA1 produced a thermostable esterase, and this Est enzyme hydrolyzed the tertiary alcohol ester tert-butyl acetate, a feature very rare among previously reported lipolytic enzymes.
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Improved and Versatile Transformation System Allowing Multiple Genetic Manipulations of the Hyperthermophilic Archaeon Thermococcus kodakaraensis
TLDR
The transformation systems developed here now provide the means for extensive genetic studies in this hyperthermophilic archaeon and establish a system in which repeated utilization of the counterselectable pyrF marker is possible through its excision by pop-out recombination.
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