Spectral study of the peripheral site of ligand binding in the active center of cholinesterases from different natural sourcesстатья
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Дата последнего поиска статьи во внешних источниках: 4 февраля 2014 г.
Аннотация:An increased ethidium bromide fluorescence at 610 nm was observed in the presence of cholinesterases from some natural sources, and a new fluorescence band appeared in the 500–570 nm region. The data obtained suggest a resonance energy transfer from the cholinesterase-ethidium bromide complex to a free ethidium bromide molecule. The structure of the peripheral ligand binding sites in the active center of bovine erythrocyte acetylcholinesterase, horse serum butyrylcholinesterase, and squid ganglia propionylcholinesterase proved essentially similar.