Global translation during early development depends on the essential transcription factor PRDM10

Brenda Y. Han, Michelle K. Y. Seah, Imogen R. Brooks, Delia H. P. Quek, Dominic R. Huxley, Chuan-Sheng Foo, Li Ting Lee, Heike Wollmann, Huili Guo, Daniel M. Messerschmidt () and Ernesto Guccione ()
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Brenda Y. Han: Technology and Research (A*STAR)
Michelle K. Y. Seah: Technology and Research (A*STAR)
Imogen R. Brooks: Technology and Research (A*STAR)
Delia H. P. Quek: Technology and Research (A*STAR)
Dominic R. Huxley: Technology and Research (A*STAR)
Chuan-Sheng Foo: Technology and Research (A*STAR)
Li Ting Lee: Technology and Research (A*STAR)
Heike Wollmann: Technology and Research (A*STAR)
Huili Guo: Technology and Research (A*STAR)
Daniel M. Messerschmidt: Technology and Research (A*STAR)
Ernesto Guccione: Technology and Research (A*STAR)

Nature Communications, 2020, vol. 11, issue 1, 1-14

Abstract: Abstract Members of the PR/SET domain-containing (PRDM) family of zinc finger transcriptional regulators play diverse developmental roles. PRDM10 is a yet uncharacterized family member, and its function in vivo is unknown. Here, we report an essential requirement for PRDM10 in pre-implantation embryos and embryonic stem cells (mESCs), where loss of PRDM10 results in severe cell growth inhibition. Detailed genomic and biochemical analyses reveal that PRDM10 functions as a sequence-specific transcription factor. We identify Eif3b, which encodes a core component of the eukaryotic translation initiation factor 3 (eIF3) complex, as a key downstream target, and demonstrate that growth inhibition in PRDM10-deficient mESCs is in part mediated through EIF3B-dependent effects on global translation. Our work elucidates the molecular function of PRDM10 in maintaining global translation, establishes its essential role in early embryonic development and mESC homeostasis, and offers insights into the functional repertoire of PRDMs as well as the transcriptional mechanisms regulating translation.

Date: 2020
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DOI: 10.1038/s41467-020-17304-3

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