Back

Nitrogen signaling factor triggers a respiration-like gene expression program

Buehler, M.; Ohsawa, S.; Schwaiger, M.; Iesmantavicius, V.; Hashimoto, R.; Moriyama, H.; Matoba, H.; Hirai, G.; Sodeoka, M.; Hashimoto, A.; Matsuyama, A.; Yoshida, M.; Yashiroda, Y.

2023-12-19 microbiology
10.1101/2023.12.18.572203 bioRxiv
Show abstract

Microbes have evolved intricate communication systems that enable individual cells of a population to send and receive signals in response to changes in their immediate environment. In the fission yeast Schizosaccharomyces pombe, the oxylipin Nitrogen Signaling Factor (NSF) is part of such communication system, which functions to regulate the usage of different nitrogen sources. Yet, the pathways and mechanisms by which NSF acts are poorly understood. Here, we show that NSF physically interacts with the mitochondrial sulfide:quinone oxidoreductase Hmt2 and that it prompts a change from a fermentation- to a respiration-like gene expression program independently of the carbon source. Our results suggest that NSF activity is not restricted to nitrogen metabolism alone and that it could function as a rheostat to prepare a population of S. pombe cells for an imminent shortage of their preferred nutrients.

Matching journals

The top 4 journals account for 50% of the predicted probability mass.

50% of probability mass above

"Similar papers" are the closest papers from that journal in the model's embedding space. They show what the match is built on, but the ranking comes mostly from a classifier over the whole training set, not from these examples alone.