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  • Title: Preparation of conophylline affinity nano-beads and identification of a target protein.
    Author: Suzuki E, Ogura H, Kato K, Takei I, Kabe Y, Handa H, Umezawa K.
    Journal: Bioorg Med Chem; 2009 Sep 01; 17(17):6188-95. PubMed ID: 19679484.
    Abstract:
    Conophylline, a vinca alkaloid extracted from the tropical plant Ervatamia microphylla, has been shown to induce the differentiation of insulin-producing beta-cells in cultured cells and in animals. However, its mechanism of action and the molecular target have remained unclear. Therefore, we prepared a fishing probe with conophylline to identify the target protein by using latex nano-beads, which are newly innovated tools for affinity-purification. With these conophylline-linked nano-beads, we found that conophylline directly interacted with ARL6IP. ARL6IP may thus be involved in the mechanism of cellular differentiation of beta-cells, and this probe should be useful to find other target proteins.
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