Differentiation 1987 Jan 01;351:1-5. doi: 10.1111/j.1432-0436.1987.tb00144.x.

Measurements of the specific activity of the nucleoside triphosphate pool of sea-urchin embryos following 8-3H-guanosine administration.

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The nucleoside triphosphate (NTP) pool during the early development of sea-urchin, Paracentrotus lividus, was measured using high-performance liquid chromatography (HPLC). Each NTP pool was measured at four stages between the eight-blastomere stage and the early blastula stage, as was the specific activity of each NTP following an initial administration of 8-3H-guanosine. Unexpectedly high UTP (uridine-5''-triphosphate) concentrations and radioactivity levels in UTP were observed. Studies of the sea-urchin, Strongilocentrotus purpuratus, also revealed elevated levels of 8-3H-guanosine incorporation into UTP. The present procedure was found to be suitable for the unequivocal identification of UTP.

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Genes referenced: LOC100887844