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July 26, 2026International Journal of Molecular SciencesOpen Access

Molecular Dynamics and Electron Density Topology Reveal Ligand-Specific Interaction Patterns at the Dopamine D2 Receptor

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Authors

GPGerardo L. PadillaLHLeonardo David Herrera-ZúñigaRVRubicelia Vargas

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Overview

Randomized trial demonstrates ligand-specific interaction patterns in D2R, suggesting new therapeutic designs.

Key Points

  • This work aims to elucidate how different ligands interact with the dopamine D2 receptor (D2R) for improved drug design.
  • Conducted molecular dynamics simulations of D2R embedded in neuronal membrane environments.
  • Analyzed electronic nature of protein-ligand interactions using quantum theory of atoms in molecules.
  • Evaluated interaction patterns of various agonists and antipsychotics.
  • Agonist-bound simulations showed recurrent interactions in the serine-rich region.
  • Antipsychotic-bound simulations revealed persistent contacts in the central aromatic region of the binding pocket.
  • Aripiprazole exhibited a unique interaction profile with enhanced coupling to the PIF connector.

Cite This Study

Padilla et al. (2026) studied this question.

synapsesocial.com/papers/6a65a36cd3aea3239cd768b3https://doi.org/10.3390/ijms27156572
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