VSE knjižnice (vzajemna bibliografsko-kataložna baza podatkov COBIB.SI)
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The role of sterols in the lipid vesicle response induced by the pore-forming agent nystatinKristanc, Luka ; Božič, Bojan, 1965- ; Gomišček, GregorThe influences of ergosterol and cholesterol on the activity of the nystatin were investigated experimentally in a POPC model membrane as well as theoretically. The behavior of giant unilamellar ... vesicles (GUVs) under osmotic stress due to the formation of transmembrane pores was observed on single vesicles at different nystatin concentrations using phase-contrast microscopy. A significant shift of the typical vesicle behavior, i.e., morphological alterations, membrane bursts, slow vesicle ruptures and explosions, towards lower nystatin concentrations was detected in the ergosterol-containing vesicles and a slight shift towards higher nystatin concentrations was detected in the cholesterol-containing membranes. In addition, the nystatin activity was shown to be significantly affected by the ergosterol membrane's molar fraction in a non-proportional manner. The observed tension-pore behavior was interpreted using a theoretical model based on the osmotic phenomena induced by the occurrence of size-selective nystatin pores. The number of nystatin pores for different vesicle behavior was theoretically determined and the role of the different mechanical characteristics of the membrane, i.e., the membrane's expansivity and bending moduli, the line tension and the lysis tension, in the tension-pore formation process was quantified. The sterol-induced changes could not be explained adequately on the basis of the different mechanical characteristics, and were therefore interpreted mainly by the direct influences of the membrane sterols on the membrane binding, the partition and the pore-formation process of nystatin.Vir: Biochimica et biophysica acta. Biomembranes. - ISSN 0005-2736 (Vol. 1838, iss. 10, Oct. 2014, Str. 2635-2645)Vrsta gradiva - članek, sestavni delLeto - 2014Jezik - angleškiCOBISS.SI-ID - 31487449
Avtor
Kristanc, Luka |
Božič, Bojan, 1965- |
Gomišček, Gregor
Teme
role of sterols |
nystatin |
transmembrane pore |
vloga sterolov |
nistatin |
transmembranske pore
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vir: Biochimica et biophysica acta. Biomembranes. - ISSN 0005-2736 (Vol. 1838, iss. 10, Oct. 2014, Str. 2635-2645)
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Leto | Faktor vpliva | Izdaja | Kategorija | Razvrstitev | ||||
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Baze podatkov, v katerih je revija indeksirana
Ime baze podatkov | Področje | Leto |
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Povezave do osebnih bibliografij avtorjev | Povezave do podatkov o raziskovalcih v sistemu SICRIS |
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Kristanc, Luka | 34753 |
Božič, Bojan, 1965- | 11088 |
Gomišček, Gregor | 18038 |
Vir: Osebne bibliografije
in: SICRIS
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