Molecular and Cellular Biochemistry

, Volume 232, Issue 1–2, pp 163–167

The transcription co-repressor TLE1 interacted with the intracellular region of gp130 through its Q domain

  • Fei Liu
  • Yin Liu
  • Demin Li
  • Yong Zhu
  • Weiming Ouyang
  • Xin Xie
  • Boquan Jin


As the common signal transducer for IL-6 family cytokines, gp130 interacts with various signal molecules. Our previous work found the amino-terminal enhancer of split (AES) molecule interacts with gp130 intracellular region through its conserved glutamine-rich (Q) domain. The Q domain in AES shares high homology with those in the transcription co-repressor transducin-like enhancer of split (TLE) proteins. The yeast two-hybrid assay, gluthione S-transferase fusion protein pull-down assay and immuno-co-precipitation assay indicated that the Q domain of TLE1 is capable of binding gp130 intracellular domain, and the intracellular membrane proximal region of gp130 containing conserved Box1 and Box2 motifs seemed essential for this interaction. The interaction between gp130 and TLE1 indicated that molecules of TLE family might play a role in gp130 signaling.

gp130 TLE1 protein interaction signal transduction Q domain 


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Copyright information

© Kluwer Academic Publishers 2002

Authors and Affiliations

  • Fei Liu
  • Yin Liu
  • Demin Li
  • Yong Zhu
  • Weiming Ouyang
  • Xin Xie
  • Boquan Jin

There are no affiliations available

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