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    Nat Cell Biol. 1999 Jul;1(3):165-70.

    Translocation of a calcium-permeable cation channel induced by insulin-like growth factor-I.

    Source

    Department of Cell Biology, Gunma University, Maebashi, Japan.

    Abstract

    Calcium plays a critical part in the regulation of cell growth, and growth factors stimulate calcium entry into cells through calcium-permeable channels. However, the molecular nature and regulation of calcium-permeable channels are still unclear at present. Here we report the molecular characterization of a calcium-permeable cation channel that is regulated by insulin-like growth factor-I (IGF-I). This channel, which we name growth-factor-regulated channel (GRC), belongs to the TRP-channel family and localizes mainly to intracellular pools under basal conditions. Upon stimulation of cells by IGF-I, GRC translocates to the plasma membrane. Thus, IGF-I augments calcium entry through GRC by regulating trafficking of the channel.

    PMID:
    10559903
    [PubMed - indexed for MEDLINE]

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