Research identifies dipeptides affecting cholesterol in liver cells, suggesting new pathways for lipid metabolism modulation.
The structural basis for dipeptides modulating PPARα remains unclear. AlphaFold2 identified Ile-His as a candidate predicted to interact with a novel alternative binding site. In HepG2 cells, Ile-His and Phe-Ala reduced cholesterol accumulation, whereas Ala-Pro had no effect. These findings support the utility of structure-based prediction as a hypothesis-generating approach for identifying dipeptides associated with PPARα-related modulation of lipid metabolism.
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Banno et al. (2026) studied this question.
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