J Exp Zool 1990 Mar 01;2533:311-8. doi: 10.1002/jez.1402530310.

Biochemical study of prolactin binding sites in Xenopus laevis brain and choroid plexus.

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The occurrence of prolactin binding sites in some brain structures (telencephalon, ventral hypothalamus, myelencephalon, hypophysis, and choroid plexus) from Xenopus laevis (anuran amphibian) was studied by the in vitro biochemical technique. The higher binding values were obtained at the level of the choroid plexus and above all of the hypothalamus. On the bases of hormonal specificity and high affinity, these binding sites are very similar to those of prolactin receptors of classical target tissues as well as of those described by us in other structures from Xenopus. To our knowledge, the present results provide the first demonstration of the occurrence of prolactin specific binding sites in Xenopus laevis choroid plexus cells.

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Species referenced: Xenopus laevis
Genes referenced: prl.1