Ribosomal ribonucleic acid (rRNA) is a type of non-coding RNA which is the primary component of ribosomes, essential to all cells. rRNA is a ribozyme which carries out protein synthesis in ribosomes.

ribosomal RNA (rRNA), molecule in cells that forms part of the protein -synthesizing organelle known as a ribosome and that is exported to the cytoplasm to help translate the information in messenger RNA (mRNA) into protein. The three major types of RNA that occur in cells are rRNA, mRNA, and transfer RNA (tRNA).

核糖体RNA，即rRNA，是细胞内含量最多的一类 RNA，也是3类RNA（tRNA， mRNA，rRNA）中 相对分子质量 最大的一类RNA，它与 蛋白质 结合而形成 核糖体，其功能是在mRNA的指导下将 氨基酸 合成为 肽链 [1] （肽链在内质网、高尔基体作用下盘曲折叠加工修饰成蛋 …

2023年2月2日 · Recent studies have revealed how the integrity and copy number of rRNA genes is maintained through a unique recombination system, how rRNA transcription is regulated and how phase separation ...

2017年11月1日 · A high-resolution structure of the human ribosome determined by cryo-electron microscopy visualizes numerous RNA modifications that are concentrated at functional sites with an extended shell,...

2024年9月11日 · In humans, rRNA genes are present in hundreds of ribosomal DNA (rDNA) copies in tandem repeats that are spread across multiple chromosomal loci. 1 These high rDNA copy numbers are thought to be necessary to produce millions of ribosomes in each cell.

2019年4月4日 · 问题：这样建的库仍然不是完整的rRNA databse，目前还没有找到一个完整的rRNA数据库。 序言：七十年代末，一起剥皮案震惊了整个滨河市，随后出现的几起案子，更是在滨河造成了极大的恐慌，老刑警刘岩，带你破解... 序言：滨河连续发生了三起死亡事件，死亡现场离奇诡异，居然都是意外死亡，警方通过查阅死者的电脑和手机，发现死者居然都... 文/潘晓璐 我一进店门，熙熙楼的掌柜王于贵愁眉苦脸地迎上来，“玉大人，你说我怎么就摊上这事。 ” “怎 …

Processing of rRNA in mammalian cells includes a series of cleavages of the primary 47S transcript and results in producing three rRNAs: 18S, 28S and 5.8S. The sequence of the main processing events in human cells has been established, but little is yet known about the dynamics of this process, espe …

2018年12月5日 · Ribosomal RNA gene repeats (rDNA) encode ribosomal RNA, a major component of ribosomes. Ribosome biogenesis is central to cellular metabolic regulation, and several diseases are associated with rDNA dysfunction, notably cancer, However, its highly repetitive nature has severely limited characterization …

Our study shows the heterogeneity of human rRNA genes across 2504 individuals from 26 ancestry-diverse populations. rRNAs are key components of ribosomes, and we identified conserved regions in 5.8S, 18S, and 28S rRNAs that are essential for ribosome assembly.