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August 8, 2026Biochemistry and Cell Biology

Diphenoquinone, a Small-HDL Neogenesis Accelerator, Concurrently Docks with Cholesterol or POPC to Human ATP-binding Cassette Transporter ABCA1

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Authors

MTMaki TsujitaLSLeticia Alves de SilvaKNKosuke Nakasuka

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Overview

Randomized trial investigates the effects of diphenoquinone on HDL biogenesis, revealing distinct interactions with ABCA1 in lipid transport.

Key Points

  • This research aims to elucidate the molecular mechanisms by which diphenoquinone affects HDL formation through ABCA1.
  • Conducted molecular docking analyses using human ABCA1 structure (PDB: 5XJY) and GOLD platform.
  • Identified cholesterol and POPC docking poses in DQ-bound ABCA1.
  • Compared ligand-binding poses in probucol-bound ABCA1.
  • Successful docking of cholesterol and POPC in DQ-bound ABCA1 indicates preserved lipid-recognition properties.
  • No ligand-binding poses were found in probucol-bound ABCA1, suggesting disruption of transporter functionality.
  • Findings provide atomic-level insight into ABCA1 and its interactions with cholesterol, probucol, and DQ.

Cite This Study

Tsujita et al. (2026) studied this question.

synapsesocial.com/papers/6a76daaaf12abadc798152bbhttps://doi.org/10.1139/bcb-2026-0043
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