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相关概念视频

Types of RNA01:20

Types of RNA

Three main types of RNA are involved in protein synthesis: messenger RNA (mRNA), transfer RNA (tRNA), and ribosomal RNA (rRNA). These RNAs perform diverse functions and can be broadly classified as protein-coding or non-coding RNA. Non-coding RNAs play important roles in regulating gene expression in response to developmental and environmental changes. Non-coding RNAs in prokaryotes can be manipulated to develop more effective antibacterial drugs for human or animal use.
RNA Performs Diverse...
Types of RNA01:23

Types of RNA

Overview
Three main types of RNA are involved in protein synthesis: messenger RNA (mRNA), transfer RNA (tRNA), and ribosomal RNA (rRNA). These RNAs perform diverse functions and can be broadly classified as protein-coding or non-coding RNA. Non-coding RNAs play important roles in the regulation of gene expression in response to developmental and environmental changes. Non-coding RNAs in prokaryotes can be manipulated to develop more effective antibacterial drugs for human or animal use.
RNA...
Ribosomal RNA Synthesis02:53

Ribosomal RNA Synthesis

Ribosome synthesis is a highly complex and coordinated process involving more than 200 assembly factors. The synthesis and processing of ribosomal components occurs not only in the nucleolus but also in the nucleoplasm and the cytoplasm of eukaryotic cells.
Ribosome biogenesis begins with the synthesis of 5S and 45S pre-rRNAs by distinct RNA polymerases. The primary transcripts are extensively processed and modified before they are bound and folded by ribosomal proteins and assembly factors,...
Ribosomal RNA Synthesis02:53

Ribosomal RNA Synthesis

Ribosome synthesis is a highly complex and coordinated process involving more than 200 assembly factors. The synthesis and processing of ribosomal components occurs not only in the nucleolus but also in the nucleoplasm and the cytoplasm of eukaryotic cells.
Ribosome biogenesis begins with the synthesis of 5S and 45S pre-rRNAs by distinct RNA polymerases. The primary transcripts are extensively processed and modified before they are bound and folded by ribosomal proteins and assembly factors,...
From DNA to Protein03:06

From DNA to Protein

The flow of genetic information in cells from DNA to mRNA to protein is described by the central dogma, which states that genes specify the sequence of mRNAs, which in turn specify the sequence of amino acids making up all proteins. The decoding of one molecule to another is performed by specific proteins and RNAs. Because the information stored in DNA is so central to cellular function, it makes intuitive sense that the cell would make mRNA copies of this information for protein synthesis...
Proteins: From Genes to Degradation02:11

Proteins: From Genes to Degradation

Within a biological system, the DNA encodes the RNA, and the nucleotide sequence in the RNA further defines the amino acid sequence in the protein. This is referred to as “The Central Dogma of Molecular Biology” - a term coined by Francis Crick.  Central dogma is a firm principle in biology that defines the flow of genetic information within any life form. The two fundamental steps in central dogma are - transcription and translation.
Transcription is the synthesis of RNA molecules by RNA...

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相关实验视频

Updated: May 21, 2026

Combined Nucleotide and Protein Extractions in Caenorhabditis elegans
10:37

Combined Nucleotide and Protein Extractions in Caenorhabditis elegans

Published on: March 17, 2019

在阶段中获得RNA和蛋白质.

Stephanie C Weber1, Clifford P Brangwynne

  • 1Princeton University, Department of Chemical and Biological Engineering, NJ 08544, USA.

Cell
|June 12, 2012
PubMed
概括

RNA颗粒,非膜结合的有机体,形成动态滴. 最近的研究揭示了结构特征,推动它们的组装通过相变,影响细胞组织,并可能导致疾病.

科学领域:

  • 细胞生物学 细胞生物学
  • 生物化学 生物化学
  • 分子生物学分子生物学

背景情况:

  • 非膜结合的有机体,如RNA颗粒,表现出动态的滴状行为.
  • 控制这些有机体组装的精确分子机制在很大程度上是未知的.
  • 了解颗粒形成对于理解细胞组织和疾病病原体至关重要.

研究的目的:

  • 阐明非膜结合器官,特别是RNA颗粒的组装背后的分子细节.
  • 确定驱动这些细胞区的形成和动态的关键结构特征.
  • 探索相变,细胞组织和病态蛋白质聚合之间的联系.

主要方法:

  • 关于RNA颗粒组装的最新出版物的文献综述.
  • 分析与器官细胞形成相关的结构和生化数据.
  • 研究阶段转换在细胞组织中的作用.

主要成果:

  • 最近的几项研究已经确定了促进RNA颗粒组装的特定结构特征.
  • 这些特征通过液-液相分离促进了动态滴的形成.
  • 这些发现突出了相位过渡如何功能性地组织细胞组件.

结论:

更多相关视频

Studying RNA Interactors of Protein Kinase RNA-Activated during the Mammalian Cell Cycle
10:05

Studying RNA Interactors of Protein Kinase RNA-Activated during the Mammalian Cell Cycle

Published on: March 5, 2019

相关实验视频

Last Updated: May 21, 2026

Combined Nucleotide and Protein Extractions in Caenorhabditis elegans
10:37

Combined Nucleotide and Protein Extractions in Caenorhabditis elegans

Published on: March 17, 2019

Studying RNA Interactors of Protein Kinase RNA-Activated during the Mammalian Cell Cycle
10:05

Studying RNA Interactors of Protein Kinase RNA-Activated during the Mammalian Cell Cycle

Published on: March 5, 2019

  • 像RNA颗粒这样的非膜结合器官的组装是由特定的结构元素驱动的.
  • 阶段过渡在细胞组织中起着至关重要的作用,并且可能与涉及蛋白质聚合的疾病有关.