Unknown

Dataset Information

0

Changes in the oligomerization potential of the division inhibitor UgtP co-ordinate Bacillus subtilis cell size with nutrient availability.


ABSTRACT: How cells co-ordinate size with growth and development is a major, unresolved question in cell biology. In previous work we identified the glucosyltransferase UgtP as a division inhibitor responsible for increasing the size of Bacillus subtilis cells under nutrient-rich conditions. In nutrient-rich medium, UgtP is distributed more or less uniformly throughout the cytoplasm and concentrated at the cell poles and/or the cytokinetic ring. Under these conditions, UgtP interacts directly with FtsZ to inhibit division and increase cell size. Conversely, under nutrient-poor conditions, UgtP is sequestered away from FtsZ in punctate foci, and division proceeds unimpeded resulting in a reduction in average cell size. Here we report that nutrient-dependent changes in UgtP's oligomerization potential serve as a molecular rheostat to precisely co-ordinate B.?subtilis cell size with nutrient availability. Our data indicate UgtP interacts with itself and the essential cell division protein FtsZ in a high-affinity manner influenced in part by UDP glucose, an intracellular proxy for nutrient availability. These findings support a model in which UDP-glc-dependent changes in UgtP's oligomerization potential shift the equilibrium between UgtP•UgtP and UgtP•FtsZ, fine-tuning the amount of FtsZ available for assembly into the cytokinetic ring and with it cell size.

SUBMITTER: Chien AC 

PROVIDER: S-EPMC3480987 | biostudies-literature | 2012 Nov

REPOSITORIES: biostudies-literature

altmetric image

Publications

Changes in the oligomerization potential of the division inhibitor UgtP co-ordinate Bacillus subtilis cell size with nutrient availability.

Chien An-Chun AC   Zareh Shannon Kian Gharabiklou SK   Wang Yan Mei YM   Levin Petra Anne PA  

Molecular microbiology 20120910 3


How cells co-ordinate size with growth and development is a major, unresolved question in cell biology. In previous work we identified the glucosyltransferase UgtP as a division inhibitor responsible for increasing the size of Bacillus subtilis cells under nutrient-rich conditions. In nutrient-rich medium, UgtP is distributed more or less uniformly throughout the cytoplasm and concentrated at the cell poles and/or the cytokinetic ring. Under these conditions, UgtP interacts directly with FtsZ to  ...[more]

Similar Datasets

| S-EPMC5373596 | biostudies-literature
2022-06-24 | GSE206572 | GEO
| S-EPMC7376506 | biostudies-literature
| S-EPMC5889556 | biostudies-literature
| S-EPMC9879117 | biostudies-literature
2022-12-06 | GSE219221 | GEO
| S-EPMC2574549 | biostudies-literature
| S-EPMC4030479 | biostudies-literature
| S-EPMC3668533 | biostudies-literature
| S-EPMC8192124 | biostudies-literature