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Related Concept Videos

Ligand Binding Sites02:40

Ligand Binding Sites

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Proteins are dynamic macromolecules that carry out a wide variety of essential processes; however, the activities of most proteins depend on their interactions with other molecules or ions, known as ligands.
Protein-ligand interactions are quite specific; even though numerous potential ligands surround a cellular protein at any given time, only a particular ligand can bind to that protein. Moreover, a ligand binds only to a dedicated area on the surface of the protein, known as the...
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The Equilibrium Binding Constant and Binding Strength02:18

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The equilibrium binding constant (Kb) quantifies the strength of a protein-ligand interaction. Kb can be calculated as follows when the reaction is at equilibrium:
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Updated: May 23, 2025

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Screening of Leptin-LepR modulators using molecular docking and binding assay.

Albertana Jiménez-Pineda1, José Luis Vique-Sánchez2, Oscar Medina-Contreras3

  • 1Laboratorio de Investigación Bioquímica y Biofísica Computacional, ENMyH, Instituto Politécnico Nacional, Guillermo Massieu Helguera, No. 239, Fracc. "La Escalera", Ticomán, C.P. 07320, Ciudad de México, México.

Bioinformation
|May 22, 2025
PubMed
Summary

Researchers identified compounds that modulate the Leptin-Leptin Receptor (LepR) complex formation. This discovery offers potential new therapeutic strategies for diseases linked to deregulated leptin signaling.

Keywords:
ADMET propertiesLeptin receptordrug-like compoundsinteractionsprotein-compound docking

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Area of Science:

  • Biochemistry
  • Molecular Biology
  • Pharmacology

Background:

  • Leptin is a key hormone regulating energy balance and metabolism.
  • Leptin exerts its effects by binding to the leptin receptor (LepR), initiating intracellular signaling pathways like JAK2/ERK, STAT3/STAT5, and IRS/PI3 kinase.
  • Dysregulation of the Leptin-LepR complex is implicated in various pathophysiologies.

Purpose of the Study:

  • To identify novel small molecules capable of modulating the Leptin-LepR interaction.
  • To evaluate the potential of these compounds as therapeutic agents for leptin-related disorders.

Main Methods:

  • Utilized molecular docking to screen a chemical library for compounds predicted to interact with the LepR binding domain (LBD).
  • Selected 18 high-probability compounds, further refining to 6 based on toxicological and physicochemical profiles.
  • Employed ELISA assays to assess the impact of the selected compounds on Leptin-LepR complex formation.

Main Results:

  • Identified 18 compounds with high docking scores for the LepR LBD.
  • Six selected compounds demonstrated discreet yet significant modulation of Leptin-LepR complex formation in vitro.
  • The identified compounds represent potential modulators of leptin signaling.

Conclusions:

  • The study successfully identified compounds that can modulate the formation of the Leptin-LepR complex.
  • These findings pave the way for developing novel therapeutic strategies targeting leptin signaling pathways.
  • Further research into these compounds could lead to treatments for metabolic and other leptin-related diseases.