Results 41 to 50 of about 419 (158)

Pressure Perturbation Approach in Biochemistry and Structural Biology. In memoriam of Dr. Gaston Hui Bon Hoa [PDF]

open access: yes, 2022
This Special Issue focuses on the effects of hydrostatic pressure on biological systems and the use of these effects for exploring the structure, function, and molecular dynamics of biological macromolecules and their ensembles.

core   +1 more source

Microbiomes of an oyster are shaped by metabolism and environment. [PDF]

open access: yes, 2022
Microbiomes can both influence and be influenced by metabolism, but this relationship remains unexplored for invertebrates. We examined the relationship between microbiome and metabolism in response to climate change using oysters as a model marine ...
Dove, MC   +6 more
core   +1 more source

Novel psychropiezophilic Oceanospirillales species Profundimonas piezophila gen. nov., sp. nov., isolated from the deep-sea environment of the Puerto Rico trench [PDF]

open access: yes, 2013
The diversity of deep-sea high-pressure-adapted (piezophilic) microbes in isolated monoculture remains low. In this study, a novel obligately psychropiezophilic bacterium was isolated from seawater collected from the Puerto Rico Trench at a depth of ~ 6 ...
BARTLETT, Douglas   +11 more
core   +1 more source

Structural and energetic basis of isopropylmalate dehydrogenase enzyme catalysis [PDF]

open access: yes, 2014
The three-dimensional structure of the enzyme 3-isopropylmalate dehydrogenase from the bacterium Thermus thermophilus in complex with Mn2+, its substrate isopropylmalate and its co-factor product NADH at 2.0 Å resolution features a fully closed ...
Acosta-Silva   +55 more
core   +1 more source

Pressure tolerance of deep‐sea enzymes can be evolved through increasing volume changes in protein transitions: a study with lactate dehydrogenases from abyssal and hadal fishes

open access: yesThe FEBS Journal, Volume 287, Issue 24, Page 5394-5410, December 2020., 2020
The studies of lactate dehydrogenase of hadal and abyssal fishes vs. pressure revealed an unexpected aspect of piezophilic adaptation—an increase in specific volume change of pressure‐induced deactivating transition concomitant with an increase in the pressure of half‐inactivation (P1/2).
Mackenzie E. Gerringer   +5 more
wiley   +1 more source

Molecular evolution of the hyperthermophilic archaea of the Pyrococcus genus: analysis of adaptation to different environmental conditions [PDF]

open access: yes, 2009
Background Prokaryotic microorganisms are able to survive and proliferate in severe environmental conditions. The increasing number of complete sequences of prokaryotic genomes has provided the basis for studying the molecular mechanisms of their ...
Afonnikov Dmitry A   +2 more
core   +2 more sources

DNA stable‐isotope probing reveals potential key players for microbial decomposition and degradation of diatom‐derived marine particulate matter

open access: yesMicrobiologyOpen, Volume 9, Issue 5, May 2020., 2020
By combining DNA stable‐isotope probing and Illumina Miseq high‐throughput sequencing, we identified 14 bacterial taxonomic groups actively involved in the decomposition of particulate organic matter (POM) at different pressures. Both particle‐attached and free‐living microorganisms were able to decompose POM and assimilate the released dissolved ...
Ying Liu   +5 more
wiley   +1 more source

Piezophilic Phenotype Is Growth Condition Dependent and Correlated with the Regulation of Two Sets of ATPase in Deep-Sea Piezophilic Bacterium Photobacterium profundum SS9. [PDF]

open access: yesMicroorganisms, 2023
Alteration of respiratory components as a function of pressure is a common strategy developed in deep-sea microorganisms, presumably to adapt to high hydrostatic pressure (HHP). While the electron transport chain and terminal reductases have been extensively studied in deep-sea bacteria, little is known about their adaptations for ATP generation.
Li AQ   +6 more
europepmc   +5 more sources

An Integrative Genomic Island Affects the Adaptations of Piezophilic Hyperthermophilic Archaeon Pyrococcus yayanosii to High Temperature and High Hydrostatic Pressure

open access: yesFrontiers in Microbiology, 2016
Deep-sea hydrothermal vent environments are characterized by high hydrostatic pressure and sharp temperature and chemical gradients. Horizontal gene transfer is thought to play an important role in the microbial adaptation to such an extreme environment.
Zhen Li   +7 more
doaj   +1 more source

High hydrostatic pressure adaptive strategies in an obligate piezophile Pyrococcus yayanosii. [PDF]

open access: yesSci Rep, 2016
AbstractPyrococcus yayanosii CH1, as the first and only obligate piezophilic hyperthermophilic microorganism discovered to date, extends the physical and chemical limits of life on Earth. It was isolated from the Ashadze hydrothermal vent at 4,100 m depth.
Michoud G, Jebbar M.
europepmc   +6 more sources

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