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Gene essentiality and synthetic lethality in haploid human cells

Abstract : Although the genes essential for life have been identified in less complex model organisms, their elucidation in human cells has been hindered by technical barriers. We used extensive mutagenesis in haploid human cells to identify approximately 2000 genes required for optimal fitness under culture conditions. To study the principles of genetic interactions in human cells, we created a synthetic lethality network focused on the secretory pathway based exclusively on mutations. This revealed a genetic cross-talk governing Golgi homeostasis, an additional subunit of the human oligosaccharyltransferase complex, and a phosphatidylinositol 4-kinase β adaptor hijacked by viruses. The synthetic lethality map parallels observations made in yeast and projects a route forward to reveal genetic networks in diverse aspects of human cell biology.
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Contributeur : Amandine Michel-Avella <>
Soumis le : mardi 29 octobre 2019 - 14:24:26
Dernière modification le : mercredi 24 juin 2020 - 12:40:12




V. Blomen, P. Majek, L. Jae, J. Bigenzahn, J. Nieuwenhuis, et al.. Gene essentiality and synthetic lethality in haploid human cells. Science, American Association for the Advancement of Science, 2015, 350 (6264), pp.1092-1096. ⟨10.1126/science.aac7557⟩. ⟨hal-02337430⟩



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