Glycogen Phase Separation Drives Macromolecular Rearrangement And Asymmetric Division In E. Coli
June 2025
TLDR Glycogen helps E. coli cells divide unevenly and organize their contents.
The study explores how glycogen phase separation affects Escherichia coli during growth phase transitions. Researchers used quantitative cell imaging and live-cell atomic force microscopy to find that glycogen accumulates at the old cell pole, causing asymmetric division and rearrangement of macromolecules like proteins, ribosomes, and RNAs. This phase separation into soft condensates allows E. coli to store glucose reserves efficiently, impacting cell size differences and future daughter cells. The research underscores glycogen's role in cellular organization and resource management in nutrient-limited environments.
