Deuterons cannot replace protons in active transport processes in yeast
Jazyk angličtina Země Anglie, Velká Británie Médium print
Typ dokumentu časopisecké články
PubMed
2162783
DOI
10.1016/0014-5793(90)80248-h
PII: 0014-5793(90)80248-H
Knihovny.cz E-zdroje
- MeSH
- adenosintrifosfatasy metabolismus MeSH
- aktivní transport MeSH
- deuterium metabolismus MeSH
- kinetika MeSH
- koncentrace vodíkových iontů MeSH
- membránové potenciály MeSH
- mitosporické houby metabolismus MeSH
- protony * MeSH
- Rhodotorula metabolismus MeSH
- Saccharomyces cerevisiae metabolismus MeSH
- Saccharomycetales metabolismus MeSH
- Publikační typ
- časopisecké články MeSH
- Názvy látek
- adenosintrifosfatasy MeSH
- deuterium MeSH
- protony * MeSH
Replacement of ordinary water with heavy water causes a sharp reduction of the rates of both primary hydrogen ion transport (at the plasma membrane ATPase) and secondary symports (H(+)-associated transports of sugars and amino acids) in several species of yeast. At the same time, the hydrolytic activity of the ATPase is affected only very little. Likewise, the membrane potential, the delta pH and, correspondingly, the accumulation ratios of the various symported solutes are altered much less. This serves as evidence that H+ or H3O+ ions are direct participants in the various active transports of nutrients in yeast.
Citace poskytuje Crossref.org
Deuterium and its impact on living organisms
Extracellular acidification by Saccharomyces cerevisiae in normal and in heavy water
Dependence of the kinetics of secondary active transports in yeast on H(+)-ATPase acidification
Transport of L-tryptophan in Saccharomyces cerevisiae