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Xylanases, xylanase families and extremophilic xylanases.
Xylanases are hydrolytic enzymes which randomly cleave the beta 1,4 backbone of the complex plant cell wall polysaccharide xylan. Diverse forms of these enzymes exist, displaying varying folds,Expand
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Psychrophilic enzymes: hot topics in cold adaptation
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 successfullyExpand
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Psychrophilic microorganisms: challenges for life
The ability of psychrophiles to survive and proliferate at low temperatures implies that they have overcome key barriers inherent to permanently cold environments. These challenges include: reducedExpand
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Coping with cold: the genome of the versatile marine Antarctica bacterium Pseudoalteromonas haloplanktis TAC125.
A considerable fraction of life develops in the sea at temperatures lower than 15 degrees C. Little is known about the adaptive features selected under those conditions. We present the analysis ofExpand
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Psychrophilic enzymes: revisiting the thermodynamic parameters of activation may explain local flexibility.
Basic theoretical and practical aspects of activation parameters are briefly reviewed in the context of cold-adaptation. In order to reduce the error impact inherent to the transition state theory onExpand
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Cold-adapted enzymes: from fundamentals to biotechnology.
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-rayExpand
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Psychrophilic enzymes: molecular basis of cold adaptation
  • G. Feller, C. Gerday
  • Biology, Medicine
  • Cellular and Molecular Life Sciences CMLS
  • 1 October 1997
Abstract Psychrophilic organisms have successfully colonized polar and alpine regions and are able to grow efficiently at sub-zero temperatures. At the enzymatic level, such organisms have to copeExpand
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Psychrophilic enzymes: a thermodynamic challenge.
Psychrophilic microorganisms, hosts of permanently cold habitats, produce enzymes which are adapted to work at low temperatures. When compared to their mesophilic counterparts, these enzymes displayExpand
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Some like it cold: biocatalysis at low temperatures.
In the last few years, increased attention has been focused on a class of organisms called psychrophiles. These organisms, hosts of permanently cold habitats, often display metabolic fluxes more orExpand
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Protein stability and enzyme activity at extreme biological temperatures.
  • G. Feller
  • Chemistry, Medicine
  • Journal of physics. Condensed matter : an…
  • 7 July 2010
Psychrophilic microorganisms thrive in permanently cold environments, even at subzero temperatures. To maintain metabolic rates compatible with sustained life, they have improved the dynamics ofExpand
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