TEAD Proteins Associate With DNA Repair Proteins to Facilitate Cellular Recovery From DNA Damage

Transcriptional enhanced associate domain family members 1 to 4 (TEADs) are a family of four transcription factors and the major transcriptional effectors of the Hippo pathway. In order to activate transcription, TEADs rely on interactions with other proteins, such as the transcriptional effectors Y...

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Published in:Molecular & cellular proteomics 2023-02, Vol.22 (2), p.100496-100496, Article 100496
Main Authors: Calses, Philamer C., Pham, Victoria C., Guarnaccia, Alissa D., Choi, Meena, Verschueren, Erik, Bakker, Sietske T., Pham, Trang H., Hinkle, Trent, Liu, Chad, Chang, Matthew T., Kljavin, Noelyn, Bakalarski, Corey, Haley, Benjamin, Zou, Jianing, Yan, Cuicui, Song, Xia, Lin, Xiaoyan, Rowntree, Rebecca, Ashworth, Alan, Dey, Anwesha, Lill, Jennie R.
Format: Article
Language:English
Subjects:
AP-MS
Carcinogenesis - metabolism
DNA Damage
DNA Repair - physiology
DNA-Binding Proteins - metabolism
Hippo pathway
Humans
TEA Domain Transcription Factors - metabolism
TEAD
transcription
Transcription Factors - metabolism
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Summary:Transcriptional enhanced associate domain family members 1 to 4 (TEADs) are a family of four transcription factors and the major transcriptional effectors of the Hippo pathway. In order to activate transcription, TEADs rely on interactions with other proteins, such as the transcriptional effectors Yes-associated protein and transcriptional co-activator with PDZ-binding motif. Nuclear protein interactions involving TEADs influence the transcriptional regulation of genes involved in cell growth, tissue homeostasis, and tumorigenesis. Clearly, protein interactions for TEADs are functionally important, but the full repertoire of TEAD interaction partners remains unknown. Here, we employed an affinity purification mass spectrometry approach to identify nuclear interacting partners of TEADs. We performed affinity purification mass spectrometry experiment in parallel in two different cell types and compared a wildtype TEAD bait protein to a nuclear localization sequence mutant that does not localize to the nucleus. We quantified the results using SAINT analysis and found a significant enrichment of proteins linked to DNA damage including X-ray repair cross-complementing protein 5 (XRCC5), X-ray repair cross-complementing protein 6 (XRCC6), poly(ADP-ribose) polymerase 1 (PARP1), and Rap1-interacting factor 1 (RIF1). In cellular assays, we found that TEADs co-localize with DNA damage–induced nuclear foci marked by histone H2AX phosphorylated on S139 (γH2AX) and Rap1-interacting factor 1. We also found that depletion of TEAD proteins makes cells more susceptible to DNA damage by various agents and that depletion of TEADs promotes genomic instability. Additionally, depleting TEADs dampens the efficiency of DNA double-stranded break repair in reporter assays. Our results connect TEADs to DNA damage response processes, positioning DNA damage as an important avenue for further research of TEAD proteins. [Display omitted] •AP-MS experiments identify DNA damage proteins as interaction partners for TEADs.•TEADs co-localize with DNA damage-induced nuclear foci marked by γH2AX and RIF1.•Depleting TEADs by RNAi sensitizes cells to DNA damage and genomic instability. This manuscript describes an affinity purification mass spectrometry approach to evaluate the protein interactions of transcriptional enhanced associate domain family member (TEAD) transcription factors and identifies DNA damage-associated proteins as nuclear interacting partners for TEADs. Follow-up validation ex
ISSN:1535-9476
1535-9484
DOI:10.1016/j.mcpro.2023.100496