Global mapping of protein-metabolite interactions in Saccharomyces cerevisiae reveals that Ser-Leu dipeptide regulates phosphoglycerate kinase activity.

Global mapping of protein-metabolite interactions in Saccharomyces cerevisiae reveals that Ser-Leu dipeptide regulates phosphoglycerate kinase activity.
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DOI:
10.1038/s42003-021-01684-3
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发表时间:
2021-02-10
影响因子:
5.9
通讯作者:
Skirycz A
Skirycz A
中科院分区:
生物学2区
文献类型:
--
作者:
Luzarowski M;Vicente R;Kiselev A;Wagner M;Schlossarek D;Erban A;de Souza LP;Childs D;Wojciechowska I;Luzarowska U;Górka M;Sokołowska EM;Kosmacz M;Moreno JC;Brzezińska A;Vegesna B;Kopka J;Fernie AR;Willmitzer L;Ewald JC;Skirycz A

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Protein–metabolite interactions are of crucial importance for all cellular processes but remain understudied. Here, we applied a biochemical approach named PROMIS, to address the complexity of the protein–small molecule interactome in the model yeast Saccharomyces cerevisiae. By doing so, we provide a unique dataset, which can be queried for interactions between 74 small molecules and 3982 proteins using a user-friendly interface available at https://promis.mpimp-golm.mpg.de/yeastpmi/. By interpolating PROMIS with the list of predicted protein–metabolite interactions, we provided experimental validation for 225 binding events. Remarkably, of the 74 small molecules co-eluting with proteins, 36 were proteogenic dipeptides. Targeted analysis of a representative dipeptide, Ser-Leu, revealed numerous protein interactors comprising chaperones, proteasomal subunits, and metabolic enzymes. We could further demonstrate that Ser-Leu binding increases activity of a glycolytic enzyme phosphoglycerate kinase (Pgk1). Consistent with the binding analysis, Ser-Leu supplementation leads to the acute metabolic changes and delays timing of a diauxic shift. Supported by the dipeptide accumulation analysis our work attests to the role of Ser-Leu as a metabolic regulator at the interface of protein degradation and central metabolism. Marcin Luzarowski et al. use a new method PROMIS for systematic analysis of protein small molecule interactions in yeast. Their work provides an experimentally-derived catalogue of protein–metabolite complexes in S. cerevisiae and reveals that the Ser-Leu dipeptide activates Pgk1, and alters cellular metabolism.
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