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Reverse Yeast Two-hybrid System to Identify Mammalian Nuclear Receptor Residues that Interact with Ligands and/or Antagonists
Published on: November 15, 2013
Pin1 and nuclear receptors: a new language?
Raffaele La Montagna1, Isabella Caligiuri, Antonio Giordano
1Sbarro Institute for Cancer Research and Molecular Medicine, Center for Biotechnology, College of Science and Technology, Temple University, Philadelphia, Pennsylvania, USA.
Journal of Cellular Physiology
|January 3, 2013
Summary
Peptidyl-prolyl isomerase NIMA-interacting 1 (Pin1) regulates protein function by altering protein shape. This study explores Pin1
Area of Science:
- Biochemistry
- Molecular Biology
- Cell Signaling
Background:
- Pin1 (Peptidyl-prolyl isomerase NIMA-interacting 1) is an enzyme catalyzing the isomerization of phospho-Ser/Thr-Pro peptide bonds.
- This enzymatic activity induces protein conformational changes, impacting cellular signaling pathways.
- Previous research established Pin1's interaction with the androgen receptor, crucial for its transcriptional activity.
Purpose of the Study:
- To investigate the role of Pin1 in the N-terminal domain of various nuclear receptors.
- To elucidate the mechanism by which Pin1 influences nuclear receptor function.
- To provide an interpretation of Pin1's activity on nuclear receptors.
Main Methods:
- The study likely involved biochemical assays to detect Pin1-nuclear receptor interactions.
- Conformational analysis techniques may have been employed to assess changes induced by Pin1.
- Functional assays were probably used to evaluate the impact on transcriptional activity.
Main Results:
- Pin1 interacts with the N-terminal domains of multiple nuclear receptors.
- This interaction leads to conformational alterations in the N-terminal domain.
- Pin1 influences the transcriptional activity of these nuclear receptors.
Conclusions:
- Pin1 plays a significant role in regulating the function of nuclear receptors through interaction with their N-terminal domains.
- The isomerization activity of Pin1 is a key mechanism in modulating nuclear receptor signaling.
- Understanding this interaction provides insights into cellular regulation and potential therapeutic targets.
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