RNA-binding activity of Trim25 is mediated by its PRY/SPRY domain and is required for ubiquitination
<p><strong>Background</strong> TRIM25 is a novel RNA-binding protein and a member of the Tripartite Motif (TRIM) family of E3 ubiquitin ligases, which plays a pivotal role in the innate immune response. However, there is scarce knowledge about its RNA-related roles in cell biology...
| Main Authors: | , , , , , , , , , , |
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| Format: | Journal article |
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BioMed Central
2017
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| _version_ | 1797100773785468928 |
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| author | Choudhury, N Heikel, G Trubitsyna, M Kubik, P Nowak, J Webb, S Granneman, S Spanos, C Rappsilber, J Castello, A Michlewski, G |
| author_facet | Choudhury, N Heikel, G Trubitsyna, M Kubik, P Nowak, J Webb, S Granneman, S Spanos, C Rappsilber, J Castello, A Michlewski, G |
| author_sort | Choudhury, N |
| collection | OXFORD |
| description | <p><strong>Background</strong> TRIM25 is a novel RNA-binding protein and a member of the Tripartite Motif (TRIM) family of E3 ubiquitin ligases, which plays a pivotal role in the innate immune response. However, there is scarce knowledge about its RNA-related roles in cell biology. Furthermore, its RNA-binding domain has not been characterized. </p>
<p><strong>Results</strong> Here, we reveal that the RNA-binding activity of TRIM25 is mediated by its PRY/SPRY domain, which we postulate to be a novel RNA-binding domain. Using CLIP-seq and SILAC-based co-immunoprecipitation assays, we uncover TRIM25’s endogenous RNA targets and protein binding partners. We demonstrate that TRIM25 controls the levels of Zinc Finger Antiviral Protein (ZAP). Finally, we show that the RNA-binding activity of TRIM25 is important for its ubiquitin ligase activity towards itself (autoubiquitination) and its physiologically relevant target ZAP. </p><p><strong>Conclusions</strong> Our results suggest that many other proteins with the PRY/SPRY domain could have yet uncharacterized RNA-binding potential. Together, our data reveal new insights into the molecular roles and characteristics of RNA-binding E3 ubiquitin ligases and demonstrate that RNA could be an essential factor in their enzymatic activity.</p> |
| first_indexed | 2024-03-07T05:42:23Z |
| format | Journal article |
| id | oxford-uuid:e603c2ed-8503-4993-ae37-37f9117fcb1b |
| institution | University of Oxford |
| last_indexed | 2024-03-07T05:42:23Z |
| publishDate | 2017 |
| publisher | BioMed Central |
| record_format | dspace |
| spelling | oxford-uuid:e603c2ed-8503-4993-ae37-37f9117fcb1b2022-03-27T10:28:12ZRNA-binding activity of Trim25 is mediated by its PRY/SPRY domain and is required for ubiquitinationJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:e603c2ed-8503-4993-ae37-37f9117fcb1bSymplectic Elements at OxfordBioMed Central2017Choudhury, NHeikel, GTrubitsyna, MKubik, PNowak, JWebb, SGranneman, SSpanos, CRappsilber, JCastello, AMichlewski, G<p><strong>Background</strong> TRIM25 is a novel RNA-binding protein and a member of the Tripartite Motif (TRIM) family of E3 ubiquitin ligases, which plays a pivotal role in the innate immune response. However, there is scarce knowledge about its RNA-related roles in cell biology. Furthermore, its RNA-binding domain has not been characterized. </p> <p><strong>Results</strong> Here, we reveal that the RNA-binding activity of TRIM25 is mediated by its PRY/SPRY domain, which we postulate to be a novel RNA-binding domain. Using CLIP-seq and SILAC-based co-immunoprecipitation assays, we uncover TRIM25’s endogenous RNA targets and protein binding partners. We demonstrate that TRIM25 controls the levels of Zinc Finger Antiviral Protein (ZAP). Finally, we show that the RNA-binding activity of TRIM25 is important for its ubiquitin ligase activity towards itself (autoubiquitination) and its physiologically relevant target ZAP. </p><p><strong>Conclusions</strong> Our results suggest that many other proteins with the PRY/SPRY domain could have yet uncharacterized RNA-binding potential. Together, our data reveal new insights into the molecular roles and characteristics of RNA-binding E3 ubiquitin ligases and demonstrate that RNA could be an essential factor in their enzymatic activity.</p> |
| spellingShingle | Choudhury, N Heikel, G Trubitsyna, M Kubik, P Nowak, J Webb, S Granneman, S Spanos, C Rappsilber, J Castello, A Michlewski, G RNA-binding activity of Trim25 is mediated by its PRY/SPRY domain and is required for ubiquitination |
| title | RNA-binding activity of Trim25 is mediated by its PRY/SPRY domain and is required for ubiquitination |
| title_full | RNA-binding activity of Trim25 is mediated by its PRY/SPRY domain and is required for ubiquitination |
| title_fullStr | RNA-binding activity of Trim25 is mediated by its PRY/SPRY domain and is required for ubiquitination |
| title_full_unstemmed | RNA-binding activity of Trim25 is mediated by its PRY/SPRY domain and is required for ubiquitination |
| title_short | RNA-binding activity of Trim25 is mediated by its PRY/SPRY domain and is required for ubiquitination |
| title_sort | rna binding activity of trim25 is mediated by its pry spry domain and is required for ubiquitination |
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