Results 31 to 40 of about 6,892 (190)

Thermophiles; or, the Modern Prometheus: The Importance of Extreme Microorganisms for Understanding and Applying Extracellular Electron Transfer

open access: yesFrontiers in Microbiology, 2019
Approximately four billion years ago, the first microorganisms to thrive on earth were anaerobic chemoautotrophic thermophiles, a specific group of extremophiles that survive and operate at temperatures ∼50 – 125°C and do not use molecular oxygen (O2 ...
Bradley G. Lusk
doaj   +1 more source

Insights on Rigidity and flexibility at the Global and Local Levels of Protein Structures and their Roles in Homologous Psychrophilic, Mesophilic and Thermophilic Proteins: A Computational Study [PDF]

open access: yesarXiv, 2021
The rigidity and flexibility of homologous psychrophilic(P), mesophilic(M) and thermophilic(T) proteins have been investigated at the global and local levels in terms of packing factor and atomic fluctuations obtained from B-factors. For comparison of atomic fluctuations, correction of errors by considering errors in B-factors from all sources in a ...
arxiv  

Citrate synthase proteins in extremophilic organisms: Studies within a structure-based model [PDF]

open access: yesJournal of Chemical Physics 141, 235102 (2014), 2015
We study four citrate synthase homodimeric proteins within a structure-based coarse-grained model. Two of these proteins come from thermophilic bacteria, one from a cryophilic bacterium and one from a mesophilic organism; three are in the closed and two in the open conformations. Even though the proteins belong to the same fold, the model distinguishes
arxiv   +1 more source

Genomic Insights Into Energy Metabolism of Carboxydocella thermautotrophica Coupling Hydrogenogenic CO Oxidation With the Reduction of Fe(III) Minerals

open access: yesFrontiers in Microbiology, 2018
The genus Carboxydocella forms a deeply branching family in the class Clostridia and is currently represented by three physiologically diverse species of thermophilic prokaryotes. The type strain of the type species, Carboxydocella thermautotrophica 41T,
Stepan V. Toshchakov   +11 more
doaj   +1 more source

Evaluation of Heterologous Biosynthetic Pathways for Methanol-Based 5-Aminovalerate Production by Thermophilic Bacillus methanolicus

open access: yesFrontiers in Bioengineering and Biotechnology, 2021
The use of methanol as carbon source for biotechnological processes has recently attracted great interest due to its relatively low price, high abundance, high purity, and the fact that it is a non-food raw material.
Luciana Fernandes Brito   +6 more
doaj   +1 more source

Isolation and Characterization of Genes Responsible for Naphthalene Degradation from Thermophilic Naphthalene Degrader, Geobacillus sp. JF8

open access: yesMicroorganisms, 2019
Geobacillus sp. JF8 is a thermophilic biphenyl and naphthalene degrader. To identify the naphthalene degradation genes, cis-naphthalene dihydrodiol dehydrogenase was purified from naphthalene-grown cells, and its N-terminal amino acid sequence was ...
Daisuke Miyazawa   +6 more
doaj   +1 more source

Anaerobic carboxydotrophic bacteria in geothermal springs identified using stable isotope probing

open access: yesFrontiers in Microbiology, 2015
Carbon monoxide (CO) is a potential energy and carbon source for thermophilic bacteria in geothermal environments. Geothermal sites ranging in temperature from 45–65°C were investigated for the presence and activity of anaerobic CO-oxidizing bacteria ...
Allyson Lee Brady   +4 more
doaj   +1 more source

Molecular Tunnels in Enzymes and Thermophily: A Case Study on the Relationship to Growth Temperature

open access: yesMicroorganisms, 2018
Developments in protein expression, analysis and computational capabilities are decisively contributing to a better understanding of the structure of proteins and their relationship to function.
Juan Miguel Gonzalez
doaj   +1 more source

PCL enzymatic hydrolysis: a mechanistic study [PDF]

open access: yesACS Omega, 2019, 2019
Accumulation of plastic waste is a major environmental problem. Enzymes, particularly esterases, play an important role in the biodegradation of polyesters. These enzymes are usually only active on aliphatic polyesters, but a few have showed catalytic activity for semi-aromatic polyesters.
arxiv   +1 more source

Nutrient requirements and growth physiology of the photoheterotrophic Acidobacterium, Chloracidobacterium thermophilum

open access: yesFrontiers in Microbiology, 2015
A novel thermophilic, microaerophilic, anoxygenic and chlorophototrophic member of the phylum Acidobacteria, Chloracidobacterium thermophilum strain BT, was isolated from a cyanobacterial enrichment culture derived from microbial mats associated with ...
Donald A Bryant   +2 more
doaj   +1 more source

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