Crossref journal-article
Cold Spring Harbor Laboratory
Genes & Development (246)
Abstract

Pre-mRNA splicing is essential for generating mature mRNA and is also important for subsequent mRNA export and quality control. The splicing history is imprinted on spliced mRNA through the deposition of a splicing-dependent multiprotein complex, the exon junction complex (EJC), at ∼20 nucleotides upstream of exon–exon junctions. The EJC is a dynamic structure containing proteins functioning in the nuclear export and nonsense-mediated decay of spliced mRNAs. Mago nashi (Mago) and Y14 are core components of the EJC, and they form a stable heterodimer that strongly associates with spliced mRNA. Here we report a 1.85 Å-resolution structure of theDrosophilaMago–Y14 complex. Surprisingly, the structure shows that the canonical RNA-binding surface of the Y14 RNA recognition motif (RRM) is involved in extensive protein–protein interactions with Mago. This unexpected finding provides important insights for understanding the molecular mechanisms of EJC assembly and RRM-mediated protein–protein interactions.

Bibliography

Shi, H., & Xu, R.-M. (2003). Crystal structure of theDrosophilaMago nashi–Y14 complex. Genes & Development, 17(8), 971–976.

Authors 2
  1. Hang Shi (first)
  2. Rui-Ming Xu (additional)
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Dates
Type When
Created 22 years, 4 months ago (April 17, 2003, 2:16 p.m.)
Deposited 3 years, 9 months ago (Nov. 15, 2021, 10:05 p.m.)
Indexed 2 days, 23 hours ago (Sept. 4, 2025, 10:23 a.m.)
Issued 22 years, 4 months ago (April 15, 2003)
Published 22 years, 4 months ago (April 15, 2003)
Published Online 22 years, 4 months ago (April 15, 2003)
Published Print 22 years, 4 months ago (April 15, 2003)
Funders 0

None

@article{Shi_2003, title={Crystal structure of theDrosophilaMago nashi–Y14 complex}, volume={17}, ISSN={1549-5477}, url={http://dx.doi.org/10.1101/gad.260403}, DOI={10.1101/gad.260403}, number={8}, journal={Genes & Development}, publisher={Cold Spring Harbor Laboratory}, author={Shi, Hang and Xu, Rui-Ming}, year={2003}, month=apr, pages={971–976} }