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Studies of Cold-active Enzymes from Cold-adapted Microorganisms

Studies of Cold-active Enzymes from Cold-adapted Microorganisms
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Cold-Adapted Enzymes

Annual Review of Biochemistry, 2006
By far the largest proportion of the Earth's biosphere is comprised of organisms that thrive in cold environments (psychrophiles). Their ability to proliferate in the cold is predicated on a capacity to synthesize cold-adapted enzymes. These enzymes have evolved a range of structural features that confer a high level of flexibility compared to ...
Khawar Sohail, Siddiqui, Ricardo, Cavicchioli   +1 more
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Computation of enzyme cold adaptation

Nature Reviews Chemistry, 2017
Enzymes that are optimized for low temperatures have characteristics that are distinct from those that operate under milder conditions. This Review examines cold-adapted enzymes and describes how computational studies have highlighted structural and energetic consequences…
Johan Åqvist, Geir Villy Isaksen, Bjørn Olav Brandsdal   +2 more
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Cold-adapted enzymes: mechanisms, engineering and biotechnological application

Bioprocess and Biosystems Engineering, 2023
Most cold-adapted enzymes display high catalytic activity at low temperatures (20-25 °C) and can still maintain more than 40-50% of their maximum activity at lower temperatures (0-10 °C) but are inactivated after a moderate increase in temperature.
Yan, Liu, Kaizhi, Jia, Hongyang, Chen, Zhulin, Wang, Wei, Zhao, Liwen, Zhu   +5 more
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Cold Adaptation of Enzyme Reaction Rates

Biochemistry, 2008
A major issue for organisms living at extreme temperatures is to preserve both stability and activity of their enzymes. Cold-adapted enzymes generally have a reduced thermal stability, to counteract freezing, and show a lower enthalpy and a more negative entropy of activation compared to mesophilic and thermophilic homologues.
Sinisa, Bjelic, Bjørn O, Brandsdal, Johan, Aqvist   +2 more
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Cold-adapted enzymes: from fundamentals to biotechnology

Trends in Biotechnology, 2000
Psychrophilic enzymes produced by cold-adapted microorganisms display a high catalytic efficiency and are most often, if not always, associated with high thermosensitivity. Using X-ray crystallography, these properties are beginning to become understood, and the rules governing their adaptation to cold appear to be relatively diverse.
Gerday, Charles, Aittaleb, Mohamed, Bentahir, Mostafa, Chessa, Jean-Pierre, Claverie, Paule, Collins, Tony, D'Amico, Salvino, Dumont, Joëlle, Garsoux, Geneviève, Georlette, Daphné, Hoyoux, Anne, Lonhienne, Thierry, Meuwis, Marie-Alice, Feller, Georges   +13 more
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Cold-Adapted Enzymes from Marine Antarctic Microorganisms

Marine Biotechnology, 2006
The Antarctic marine environment is characterized by challenging conditions for the survival of native microorganisms. Indeed, next to the temperature effect represented by the Arrhenius law, the viscosity of the medium, which is also significantly enhanced by low temperatures, contributes to slow down reaction rates. This review analyses the different
Marx, J. C., Collins, T., D'Amico, Salvino, Feller, Georges, Gerday, Charles   +4 more
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Cold adapted enzymes

2000
The number of reports on enzymes from cold adapted organisms has increased significantly over the past years, and reveals that adaptive strategies for functioning at low temperature varies among enzymes. However, the high catalytic efficiency at low temperature seems, for the majority of cold active enzymes, to be accompanied by a reduced thermal ...
A O, Smalås, H K, Leiros, V, Os, N P, Willassen   +3 more
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Psychrophilic enzymes: hot topics in cold adaptation

Nature Reviews Microbiology, 2003
More than three-quarters of the Earth's surface is occupied by cold ecosystems, including the ocean depths, and polar and alpine regions. These permanently cold environments have been successfully colonized by a class of extremophilic microorganisms that are known as psychrophiles (which literally means cold-loving).
Feller, Georges, Gerday, Charles
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Cold-adapted enzymes

Trends in Biotechnology, 1997
It is an article of faith among biochemists and molecular biologists that precious enzymes must be stored on ice. The usual reason given is that, at temperatures around freezing, enzyme activity is minimized and protein stability maximized. There is considerable evidence supporting this, but is it true for all enzymes? What about enzymes from organisms
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