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Gene Review

soc-1  -  Protein SOC-1

Caenorhabditis elegans

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High impact information on soc-1

  • Components that mediate EGL-15 signaling have been identified via mutations that confer a Clear (Clr) phenotype, indicative of hyperactivity of this pathway, or a suppressor-of-Clr (Soc) phenotype, indicative of reduced pathway activity [1].
  • Further genetic analysis suggests that ptp-2/Shp2 mediates the negative function of soc-1/Gab1 in PI3K-mediated signaling, as well as the positive function in Ras/Map kinase signaling [2].
  • Furthermore, as well as stimulating Ras/Map kinase signaling, soc-1/Gab1 stimulates a poorly defined signaling pathway that represses class 2 daf-2 phenotypes [2].
  • Previous genetic analysis has shown that dos/soc-1/Gab1 functions positively in receptor tyrosine kinase (RTK)-stimulated Ras/Map kinase signaling through the recruitment of csw/ptp-2/Shp2 [2].
  • This binding is likely to be functional as the sem-5(n2195)G201R mutation, which disrupts SOC-1 binding, behaves in a qualitatively similar manner to a soc-1 null allele in all assays for let-23/Egfr and daf-2/InsR signaling that were examined [2].

Regulatory relationships of soc-1

  • Other effectors of soc-1/Gab1 are likely to inhibit PLCgamma-mediated signaling and stimulate the poorly defined signaling pathway that represses class 2 daf-2 phenotypes [2].

Other interactions of soc-1

  • Using sensitized assays in Caenorhabditis elegans for let-23/Egfr and daf-2/InsR (insulin receptor-like) signaling, it is shown that soc-1/Gab1 inhibits phospholipase C-gamma (PLCgamma) and phosphatidylinositol 3'-kinase (PI3K)-mediated signaling [2].


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