Psychrophilic enzymes: molecular basis of cold adaptation [PDF]
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 +2 more sources
Cloning, expression and characterization of a cold-adapted endo-1, 4-β-glucanase from Citrobacter farmeri A1, a symbiotic bacterium of Reticulitermes labralis [PDF]
Background Many biotechnological and industrial applications can benefit from cold-adapted EglCs through increased efficiency of catalytic processes at low temperature.
Xi Bai +5 more
doaj +2 more sources
Alginate oligosaccharides produced by enzymatic degradation show versatile physiological functions and biological activities. In this study, a new alginate lyase encoding gene alyS02 from Flavobacterium sp. S02 was recombinantly expressed at a high level
Hai-Xiang Zhou +4 more
doaj +1 more source
Understanding High-Salt and Cold Adaptation of a Polyextremophilic Enzyme [PDF]
The haloarchaeon Halorubrum lacusprofundi is among the few polyextremophilic organisms capable of surviving in one of the most extreme aquatic environments on Earth, the Deep Lake of Antarctica (−18 °C to +11.5 °C and 21–28%, w/v salt content). Hence, H.
Ram Karan +9 more
openaire +5 more sources
Endo-β-1,4-glucanase is a crucial glycoside hydrolase (GH) involved in the decomposition of cellulosic materials. In this study, to discover a novel cold-adapted β-1,4-D-glucan-degrading enzyme, the gene coding for an extracellular endo-β-1,4-glucanase ...
Do Young Kim +8 more
doaj +1 more source
Rational engineering of a cold-adapted α-amylase from the Antarctic ciliate Euplotes focardii for simultaneous improvement of thermostability and catalytic activity [PDF]
The α-amylases are endo-acting enzyme which hydrolyze starch by randomly cleaving the 1,4-α-D-glucosidic linkages between the adjacent glucose units in linear amylose chain.
Ballarini, Patrizia +5 more
core +1 more source
Enzymes with high specific activities at low temperatures have potential uses in the food industry. Cold-adapted microorganisms are potentially useful sources of cold-active enzyme.
Wen-Yu Liu +5 more
doaj +1 more source
A novel esterase, MtEst45, was isolated from a fosmid genomic library of Microbulbifer thermotolerans DAU221. The encoding gene is predicted to have a mass of 45,564 Da and encodes 495 amino acids, excluding a 21 amino acid signal peptide. MtEst45 showed
Yong-Suk eLee
doaj +1 more source
Crystal structure of a cold-active protease (Pro21717) from the psychrophilic bacterium, Pseudoalteromonas arctica PAMC 21717, at 1.4 Å resolution: Structural adaptations to cold and functional analysis of a laundry detergent enzyme. [PDF]
Enzymes isolated from organisms found in cold habitats generally exhibit higher catalytic activity at low temperatures than their mesophilic homologs and are therefore known as cold-active enzymes.
Ha Ju Park +8 more
doaj +1 more source
Cloning, expression and characterisation of a novel cold-adapted GDSL family esterase from Photobacterium sp. strain J15 [PDF]
The gene encoding for a novel cold-adapted enzyme from family II of bacterial classification (GDSL family) was cloned from the genomic DNA of Photobacterium sp.
Mohamad Ali, Mohd Shukuri +4 more
core +1 more source

