期刊
BIOCHEMICAL AND BIOPHYSICAL RESEARCH COMMUNICATIONS
卷 559, 期 -, 页码 230-237出版社
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.bbrc.2021.04.027
关键词
miRNA; Nucleoporin; Translation; CNOT complex; ANE1; Phase-separation
资金
- Council of Scientific and Industrial Research, Government of India
- NCCS
- Department of Biotechnology, Government of India, India [BT/PR27451/BRB/10/1655/2018]
Nup358 protein plays a role in coupling miRNA-induced silencing complex with target mRNA, and interacts with GW182 protein. Mutations in Nup358 associated with ANE1 may affect the miRNA pathway and contribute to the development of ANE1.
MicroRNA (miRNA)-mediated translational suppression of mRNAs is involved in the regulation of mul-tiple cellular processes. A recent study showed that Nup358, a protein mutated in a neurological disorder called acute necrotizing encephalopathy 1 (ANE1), helps in the coupling of miRNA-induced silencing complex (miRISC) -consisting of miRNA, AGO and GW182/TNRC6 proteins -with the target mRNA. Here we provide a detailed characterization of the interaction between Nup358 and GW182. We identified that the N-terminal region of Nup358 directly interacts with the C-terminal silencing domain of GW182. Interestingly, ANE1-associated Nup358 mutants display reduced interaction with GW182. Consistent with this, one of the prevalent ANE1 mutations, 585th threonine (T) residue changed to methionine (M) [T585M] compromised Nup358's ability to function in the miRNA pathway. Collectively, these results suggest that the ANE1-associated mutations in Nup358 might affect the miRNA pathway and contribute to the development of ANE1. (c) 2021 Elsevier Inc. All rights reserved.
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