Abstract

A search for biologically active peptides has been performed in an aqueous extract of the sea anemone Urticina aff. coriacea (Cuvier, 1798) (Actiniidae) from the Sea of Okhotsk. A separation of the peptides by size-exclusion chromatography and subsequent electrophysiological testing have shown that peptides of three fractions can completely inhibit currents of mammalian ASIC1a channels. The sea anemone Urticina aff. coriacea is believed to be a promising source of novel peptides that interact with ASIC channels.

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