articleCommunications BiologyJan 20, 2026GOLD OA

Glycophagy is an ancient bilaterian pathway supporting metabolic adaptation through STBD1 structural evolution

Chinese Academy of Fishery Sciences · Ocean University of China · +3 more institutions

PubMed
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Abstract

Glycophagy, a selective form of autophagy critical for glycogen homeostasis, relies on the glycogen cargo receptor called starch-binding domain-containing protein 1 (STBD1), yet its evolutionary origins remain elusive. Here, we provide evidence that the Pacific oyster Crassostrea gigas utilizes glycophagy to manage glycogen mobilization during periods of energy deprivation. We identify an oyster STBD1 protein, and trace its origins through phylogenetic and comparative genomic analysis of the carbohydrate binding module family 20 (CBM20) domain within this protein across metazoans. Oyster STBD1 and those in other invertebrates contain an N-terminal CBM20, contrasting the C-terminal location of CBM20 in…

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4
total citations
FWCI
50.88
Percentile
100%
References
67
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Authors

7

Topics & keywords

Keywords
  • Vertebrate
  • Chordate
  • Glycogen
  • Phylogenetic tree
  • Phylogenetics
  • Adaptation (eye)
  • Marine invertebrates
  • Protein domain
UN Sustainable Development Goals
  • Life below water
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