Protons at the membrane water interface
نویسندگان
چکیده
منابع مشابه
Localized proton microcircuits at the biological membrane-water interface.
Cellular processes such as nerve conduction, energy metabolism, and import of nutrients into cells all depend on transport of ions across biological membranes through specialized membrane-spanning proteins. Understanding these processes at a molecular level requires mechanistic insights into the interaction between these proteins and the membrane itself. To explore the role of the membrane in i...
متن کاملMembrane enzymes: transformers at the interface.
Membrane enzymes constitute a large class of proteins with vital roles in cellular signaling and metabolism and typically act on membrane components as substrates such as lipids or oligosaccharides of the bacterial cell wall1. The molecular basis of diverse reaction specificities of closely related membrane enzymes transforming identical substrates into different products has been largely elusi...
متن کاملAromaticity at the water-hydrocarbon core interface of the membrane: consequences on the nicotinic acetylcholine receptor.
Almost all lipid-exposed transmembrane domains of integral proteins contain aromatic residues flanking the hydrophobic segment of the domains. These residues generally reside close to the carbonyl region of the membrane, and several structural and functional roles have been associated to these residues. Although the roles and physicochemical reasons for aromatic preference have been extensively...
متن کاملOrganic ions at the air/water interface
Direct spectroscopic evidence of the presence of organic phenolate ions at the air/aqueous interface has been established using the nonlinear spectroscopic technique of vibrational sum frequency generation (SFG). By probing the phenol C–OH and the phenolate C–O vibrational stretches, which occur in the range of 1200–1300 cm and are distinguishable, we have succeeded in determining the identitie...
متن کاملHydrated electrons at the water/air interface.
The dynamics of hydrated electrons at the water/air interface are investigated using time-resolved second-harmonic generation spectroscopy. Initial solvation occurs in approximately 1 ps, and the electron remains at the interface for >750 ps. The location of the electron relative to the dividing surface is investigated using surfactants, which show that the electron is hydrated in the interfaci...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Biochimica et Biophysica Acta (BBA) - Bioenergetics
سال: 2018
ISSN: 0005-2728
DOI: 10.1016/j.bbabio.2018.09.346