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The structural origin and biological function of pH-sensitivity in firefly luciferases
(2008-02-19)
Firefly luciferases are called pH-sensitive because their bioluminescence spectra display a typical red-shift at acidic pH, higher temperatures, and in the presence of heavy metal cations, whereas other beetle luciferases ...
Screening for pectinolytic activity of wood-rotting basidiomycetes and characterization of the enzymes
(2004-04-20)
Seventy-five fungal strains from different groups of basidiomycetes, newly isolated from rotten wood, were screened for pectinolytic activity. Despite the fact that basidiomycetes are scarcely referred to as pectinase ...
A new firefly luciferase with bimodal spectrum: Identification of structural determinants of spectral pH-sensitivity in firefly luciferases
(2005-07-01)
Fireflies emit flashes in the green-yellow region of the spectrum for the purpose of sexual attraction. The bioluminescence color is determined by the luciferases. It is well known that the in vitro bioluminescence color ...
A specific short dextrin-hydrolyzing extracellular glucosidase from the thermophilic fungus Thermoascus aurantiacus 179-5
(2006-12-13)
The thermophilic fungus Thermoascus aurantiacus 179-5 produced large quantities of a glucosidase which preferentially hydrolyzed maltose over starch. Enzyme production was high in submerged fermentation, with a maximal ...
Influência da precipitação pluviométrica nas características físicas, química e higiênico-sanitária da água de trés mananciais de abastecimento público.
(1994-01-01)
Aiming to know the influence of the pluviometric precipitation over the physical chemical and bacteriological characteristics of the water coming from three sources of public supply, and to verify the probable origin of ...
Evaluation of the diffusion capacity of calcium hydroxide pastes through the dentinal tubules
(2009-12-08)
This study aimed to evaluate the diffusion capacity of calcium hydroxide pastes with different vehicles through dentinal tubules. The study was conducted on 60 extracted single-rooted human teeth whose crowns had been ...
Estudo da remoção de íons ferro e manganês da água utilizando peróxido de hidrogênio como agente oxidante
(The Journal of Engineering and Exact Sciences, 2019)
Behavior of bromide in the photoelectrocatalytic process and bromine generation using nanoporous titanium dioxide thin-film electrodes
(2004-02-01)
In this study, the photoelectrocatalytic behavior of bromide and generation of bromine using TiO2 was investigated in the separate anode and cathode reaction chambers. Our results show that the generation of bromine begins ...