Download MendeleyMolecular insights into RNA recognition by the ZAR1 C-terminal domain.
Liu, Q., Ma, H., He, X., Xu, C., Zhang, J.(2025) FEBS Lett
- PubMed: 40388637
- DOI: https://doi.org/10.1002/1873-3468.70080
- Primary Citation of Related Structures:
9JKO - PubMed Abstract:
Zygote arrested-1 (ZAR1)-dependent translational repression plays an important role during early oogenesis. Here, we solved the crystal structure of the C-terminal domain of ZAR1, which contains three zinc-binding motifs, and confirmed its ability to bind to RNAs derived from translation control sequence elements within the 3'-UTRs of Wee1 and Mos mRNAs. By using the AlphaFold server, we obtained a predicted model for the structure of the ZAR1 C-terminal domain bound with a 13-nt RNA. Mutagenesis and biochemistry experiments further validated the ZAR1-RNA interaction. Therefore, our study provides insights into RNA recognition by the ZAR1 zinc-binding domain and the role of ZAR1 in repressing gene expression. Impact statement Zygote arrested-1 (ZAR1)-dependent translational repression finely orchestrates gene expression during early oogenesis. Here, we solved the high-resolution structure of the C-terminal zinc-binding domain of ZAR1 and confirmed its binding to RNA. The modeled ZAR1-RNA complex by Alphafold further provides insight into RNA recognition by ZAR1.
- Division of Life Sciences and Medicine, MOE Key Laboratory for Membraneless Organelles & Cellular Dynamics, Center for Advanced Interdisciplinary Science and Biomedicine of IHM, Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, China.
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