GoKawiilResearchers solve structure of UGCG, the master enzyme behind glycolipid synthesis
Scientists led by Wu and colleagues determined eight structural snapshots of UDP-glucose ceramide glucosyltransferase (UGCG), the enzyme that initiates production of nearly all glycosphingolipids in cells. The structures, published in Nature, expose a previously unknown catalytic mechanism and show how existing drugs bind and inhibit the enzyme. They also uncovered a regulatory 'brake' element unique to primate versions of UGCG.
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UGCG sits at the top of a biosynthetic pathway whose products are implicated in disorders like Gaucher disease, and drugs targeting this enzyme are already in clinical use for lipid storage diseases. Understanding its precise molecular mechanism could enable more selective inhibitors with fewer side effects, and the primate-specific brake hints at evolutionary tuning of lipid metabolism that may be relevant to human-specific biology.
- Eight structural states of UGCG reveal a new catalytic mechanism for glycosphingolipid synthesis
- The structures explain how current therapeutic inhibitors interact with the enzyme
- A regulatory 'brake' feature found only in primate UGCG suggests evolutionary specialization
Molecular Biology of the Cell (Alberts) textbook — If enzyme structures and lipid biosynthesis pathways like UGCG's fascinate you, Alberts' Molecular Biology of the Cell is the classic reference that lays out membrane lipids, glycosylation and enzyme catalysis in clear, illustrated detail. It's the go-to companion for making sense of papers like this one.
See Molecular Biology of the Cell (Alberts) textbook on Amazon → Affiliate link — we may earn a commission on purchases, at no extra cost to you. Product picked by AI based on this article; it is not a tested recommendation.Source: nature.com — Dai, 2026-08-26
Published there as: “Evolutionary mystery revealed by structures of a key enzyme in the synthesis of glycolipids”
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