{"title":"The carboxy-terminal domain of RNA polymerase II large subunit: simple repeats are not simple.","authors":"Qi Li, Zhi-Cheng Dong, Min Liu","doi":"10.16288/j.yczz.24-200","DOIUrl":null,"url":null,"abstract":"<p><p>Transcription, as a crucial step in the transmission of genetic information, is completed by DNA-dependent RNA polymerase. In eukaryotes, the transcription of protein-coding genes is completed by RNA polymerase II (Pol II). A distinctive feature of Pol II is the carboxy-terminal domain (CTD) of its largest subunit, RPB1, which is composed of a series of heptapeptide repeats that play a vital role in transcription. Here, we provide a comprehensive review and summary of the sequence characteristics and evolutionary trajectory of the eukaryotic RPB1 CTD, as well as its regulatory function within the transcription cycle. We particularly focus on the mechanisms by which the CTD participates in the regulation of transcription and co-transcriptional processing through post-translational modifications. This deepens our understanding of the intricate regulatory mechanisms governing gene transcription in eukaryotes and lays the groundwork for further investigation into the role of the RPB1 CTD.</p>","PeriodicalId":35536,"journal":{"name":"遗传","volume":"46 12","pages":"1028-1041"},"PeriodicalIF":0.0000,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"遗传","FirstCategoryId":"1091","ListUrlMain":"https://doi.org/10.16288/j.yczz.24-200","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"Medicine","Score":null,"Total":0}
引用次数: 0
Abstract
Transcription, as a crucial step in the transmission of genetic information, is completed by DNA-dependent RNA polymerase. In eukaryotes, the transcription of protein-coding genes is completed by RNA polymerase II (Pol II). A distinctive feature of Pol II is the carboxy-terminal domain (CTD) of its largest subunit, RPB1, which is composed of a series of heptapeptide repeats that play a vital role in transcription. Here, we provide a comprehensive review and summary of the sequence characteristics and evolutionary trajectory of the eukaryotic RPB1 CTD, as well as its regulatory function within the transcription cycle. We particularly focus on the mechanisms by which the CTD participates in the regulation of transcription and co-transcriptional processing through post-translational modifications. This deepens our understanding of the intricate regulatory mechanisms governing gene transcription in eukaryotes and lays the groundwork for further investigation into the role of the RPB1 CTD.
期刊介绍:
Hereditas is a national academic journal sponsored by the Institute of Genetics and Developmental Biology of the Chinese Academy of Sciences and the Chinese Society of Genetics and published by Science Press. It is a Chinese core journal and a Chinese high-quality scientific journal. The journal mainly publishes innovative research papers in the fields of genetics, genomics, cell biology, developmental biology, biological evolution, genetic engineering and biotechnology; new technologies and new methods; monographs and reviews on hot issues in the discipline; academic debates and discussions; experience in genetics teaching; introductions to famous geneticists at home and abroad; genetic counseling; information on academic conferences at home and abroad, etc. Main columns: review, frontier focus, research report, technology and method, resources and platform, experimental operation guide, genetic resources, genetics teaching, scientific news, etc.