Results 11 to 20 of about 4,068 (193)

Psychrophilic enzymes: strategies for cold-adaptation [PDF]

Essays in Biochemistry, 2023
Abstract Psychrophilic organisms thriving at near-zero temperatures synthesize cold-adapted enzymes to sustain cell metabolism. These enzymes have overcome the reduced molecular kinetic energy and increased viscosity inherent to their environment and maintained high catalytic rates by development of a diverse range of structural ...
Collins, Tony, Feller, Georges
openaire   +3 more sources

Psychrophilic enzymes: molecular basis of cold adaptation [PDF]

Cellular and Molecular Life Sciences CMLS, 1997
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 cope with the reduction of chemical reaction rates induced by low temperatures in order to maintain adequate metabolic fluxes. Thermal compensation in cold-adapted enzymes
Feller, Georges, Gerday, Charles
openaire   +4 more sources

Enzymes from psychrophilic organisms [PDF]

FEMS Microbiology Reviews, 1996
Psychrophilic organisms such as micro-organisms and other ectothermic species living in polar, deep- sea or any constantly low temperature environments, produce enzymes adapted to function at low temperature. These enzymes are characterized by a high catalytic efficiency at low and moderate temperatures but are rather thermolabile.
Feller, Georges, Narinx, E., Arpigny, J. L., Aittaleb, M., Baise, Etienne, Genicot, S., Gerday, Charles   +6 more
core   +3 more sources

An In-Silico Comparative Study of Lipases from the Antarctic Psychrophilic Ciliate Euplotes focardii and the Mesophilic Congeneric Species Euplotes crassus: Insight into Molecular Cold-Adaptation [PDF]

Marine Drugs, 2021
Cold-adapted enzymes produced by psychrophilic organisms have elevated catalytic activities at low temperatures compared to their mesophilic counterparts.
Guang Yang, Matteo Mozzicafreddo, Patrizia Ballarini, Sandra Pucciarelli, Cristina Miceli   +4 more
doaj   +4 more sources

Biotechnological uses of enzymes from psychrophiles [PDF]

Microbial Biotechnology, 2011
Summary The bulk of the Earth's biosphere is cold (e.g. 90% of the ocean's waters are ≤ 5°C), sustaining a broad diversity of microbial life. The permanently cold environments vary from the deep ocean to alpine reaches and to polar regions.
Cavicchioli, R, Charlton, T, Ertan, H, Mohd Omar, S, Siddiqui, KS, Williams, TJ   +5 more
openaire   +5 more sources

Aliivibrio wodanis as a production host: development of genetic tools for expression of cold-active enzymes [PDF]

Microbial Cell Factories, 2019
Background Heterologous production of cold-adapted proteins currently represents one of the greatest bottlenecks in the ongoing bioprospecting efforts to find new enzymes from low-temperature environments, such as, the polar oceans that represent ...
Jenny Johansson Söderberg, Miriam Grgic, Erik Hjerde, Peik Haugen   +3 more
doaj   +2 more sources

Optimization to low temperature activity in psychrophilic enzymes. [PDF]

Int J Mol Sci, 2012
Psychrophiles, i.e., organisms thriving permanently at near-zero temperatures, synthesize cold-active enzymes to sustain their cell cycle. These enzymes are already used in many biotechnological applications requiring high activity at mild temperatures or fast heat-inactivation rate.
Struvay C, Feller G.
europepmc   +4 more sources

Snow- and ice-ecosystem cleaning capability of the pucciniomycotinous yeast Phenoliferia psychrophenolica [PDF]

Communications Biology
Psychrophilic pucciniomycotinous yeasts inhabit snowfields and glacial ecosystems worldwide, yet their ecological role remains unclear. We isolated a clonal strain of Phenoliferia psychrophenolica (LCC-F-001-001) from an alpine red snowfield.
Jade A. Ezzedine, Pierre Guenzi-Tiberi, Gaëlle Villain, Riccardo Aiese Cigliano, Yacine Diagne, Enzo Franceschi, Elodie Drula, Jérôme Forêt, Jean-Gabriel Valay, Lenka Procházková, Daniel Remias, Nicolas Terrapon, Alberto Amato, Eric Maréchal   +13 more
doaj   +2 more sources

Comprehensive insights on environmental adaptation strategies in Antarctic bacteria and biotechnological applications of cold adapted molecules

Frontiers in Microbiology, 2023
Climate change and the induced environmental disturbances is one of the major threats that have a strong impact on bacterial communities in the Antarctic environment.
Kesava Priyan Ramasamy, Lovely Mahawar, Raju Rajasabapathy, Kottilil Rajeshwari, Cristina Miceli, Sandra Pucciarelli   +5 more
doaj   +1 more source

Molecular characterization of cold adaptation of membrane proteins in the Vibrionaceae core-genome. [PDF]

PLoS ONE, 2012
Cold-adaptation strategies have been studied in multiple psychrophilic organisms, especially for psychrophilic enzymes. Decreased enzyme activity caused by low temperatures as well as a higher viscosity of the aqueous environment require certain ...
Tim Kahlke, Steinar Thorvaldsen
doaj   +1 more source