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TitleThe killer toxin of the halotolerant yeast Candida nodaensis
Author(s)Aguiar, Cristina
Silva, Sónia Carina
Veríssimo, P.
Pires, E.
Lucas, Cândida
KeywordsKiller toxin
Candida nodaensis
K toxin characterisation
Issue date2002
Abstract(s)In a previous survey, the halotolerant yeast Candida nodaensis was identified as one of the strongest killer strains, displaying an enhancement of killer action in the presence of salt (maximum activity detected at 2M NaCl). Results of nucleic acid extractions and curing experiments suggested that this zymocin might be encoded by a nuclear gene. The great majority of killer toxins are considered labile proteins, unfitted for biotechnological purposes. Preliminary experiments in order to characterise C. nodaensis zymocin showed that, besides keeping its biological activity at high NaCl concentrations, this killer factor is stable after incubation in a relatively broad range of temperature and pH values, either in the absence or in the presence of NaCl (1M).
DescriptionComunicação efectuada no XIII Congresso Nacional de Bioquímica em Lisboa (Portugal), 2002.
AccessOpen access
Appears in Collections:DBio - Comunicações/Communications in Congresses

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