Dahao Wei, Zhangyu Mai, Xinan Li, Tianli Yu, Jiangchao Li
{"title":"Poly(G)<sub>7</sub> box: a functional element of mammalian 18S rRNA involved in translation.","authors":"Dahao Wei, Zhangyu Mai, Xinan Li, Tianli Yu, Jiangchao Li","doi":"10.1080/15476286.2024.2399310","DOIUrl":null,"url":null,"abstract":"<p><p>In eukaryotes, the ribosomal small subunit (40S) is composed of 18S rRNA and 33 ribosomal proteins. 18S rRNA has a special secondary structure and is an indispensable part of the translation process. Herein, a special sequence located in mammalian 18S rRNA named Poly(G)<sub>7</sub>box, which is composed of seven guanines, was found. Poly(G)<sub>7</sub> can form a special and stable secondary structure by binding to the translation elongation factor subunit eEF1D and the ribosomal protein RPL32. Poly(G)<sub>7</sub>box was transfected into cells, and the translation efficiency of cells was inhibited. We believe that Poly(G)<sub>7</sub>box is an important translation-related functional element located on mammalian 18S rRNA, meanwhile the Poly(G)<sub>7</sub> located on mRNA 5' and 3' box does not affect mRNA translation.</p>","PeriodicalId":21351,"journal":{"name":"RNA Biology","volume":"21 1","pages":"8-18"},"PeriodicalIF":3.6000,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11382726/pdf/","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"RNA Biology","FirstCategoryId":"99","ListUrlMain":"https://doi.org/10.1080/15476286.2024.2399310","RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2024/9/5 0:00:00","PubModel":"Epub","JCR":"Q2","JCRName":"BIOCHEMISTRY & MOLECULAR BIOLOGY","Score":null,"Total":0}
引用次数: 0
Abstract
In eukaryotes, the ribosomal small subunit (40S) is composed of 18S rRNA and 33 ribosomal proteins. 18S rRNA has a special secondary structure and is an indispensable part of the translation process. Herein, a special sequence located in mammalian 18S rRNA named Poly(G)7box, which is composed of seven guanines, was found. Poly(G)7 can form a special and stable secondary structure by binding to the translation elongation factor subunit eEF1D and the ribosomal protein RPL32. Poly(G)7box was transfected into cells, and the translation efficiency of cells was inhibited. We believe that Poly(G)7box is an important translation-related functional element located on mammalian 18S rRNA, meanwhile the Poly(G)7 located on mRNA 5' and 3' box does not affect mRNA translation.
期刊介绍：
RNA has played a central role in all cellular processes since the beginning of life: decoding the genome, regulating gene expression, mediating molecular interactions, catalyzing chemical reactions. RNA Biology, as a leading journal in the field, provides a platform for presenting and discussing cutting-edge RNA research.
RNA Biology brings together a multidisciplinary community of scientists working in the areas of:
Transcription and splicing
Post-transcriptional regulation of gene expression
Non-coding RNAs
RNA localization
Translation and catalysis by RNA
Structural biology
Bioinformatics
RNA in disease and therapy
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