ABSTRACT
Acid-soluble nucleotides in unfertilized eggs of four sea urchins (Toxopneustes pileolus, Clypeaster japonicus, Astriclypeus manni and Strongylocentrotus nudus) and two starfish (Asterina pectinifera and Asterias amurensis) were investigated chromatographically. By the anion-exchange chromatography, 4 major fractions of nucleotide (nucleoside mono-, di- and triphosphates and UDP-sugars) were separated from eggs of four sea urchins. As for the starfish, the result obtained from Asterina pectinifera eggs was identical with those obtained from eggs of four sea urchins, but Asterias amurensis eggs did not show any distinct peak in UDP-sugar fraction region. A major fraction of the sugar moiety of UDP-sugars in Asterina pectinifera was shown to be an acetylhexosamine.
