XB-ART-22624
Photochem Photobiol
1993 May 01;575:862-6. doi: 10.1111/j.1751-1097.1993.tb09225.x.
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Pertussis toxin sensitive photoaggregation of pigment in isolated Xenopus tail-fin melanophores.
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Direct illumination of Xenopus laevis tail-fin melanophores results in rapid, reversible translocation of intracellular pigment granules to a perinuclear location, an effect distinct from and opposite to the photodispersion of pigment found in melanophores isolated from Xenopus embryos. In this report we show that both pertussis toxin and dibutyryl-adenosine-3',5'-monophosphate block the ability of light to cause photoaggregation of pigment in cultured tail-fin melanophores, whereas dibutyryl-guanosine-3',5'-monophosphate is without effect.
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