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相关概念视频

Nucleic acids02:43

Nucleic acids

Nucleic acids are the most important macromolecules for the continuity of life. They carry the cell's genetic blueprint and carry instructions for its functioning.
DNA and RNA
The two main types of nucleic acids are deoxyribonucleic acid (DNA) and ribonucleic acid (RNA). DNA is the genetic material in all living organisms, ranging from single-celled bacteria to multicellular mammals. It is in the nucleus of eukaryotes and in the organelles, chloroplasts, and mitochondria. In prokaryotes, the...
Translation01:31

Translation

Lesson: Translation
Translation is the process of synthesizing proteins from the genetic information carried by messenger RNA (mRNA). Following transcription, it constitutes the final step in the expression of genes. This process is carried out by ribosomes, complexes of protein and specialized RNA molecules. Ribosomes, transfer RNA (tRNA), and other proteins produce a chain of amino acids—the polypeptide—as the end product of translation.
Translation Produces the Building Blocks of Life
Nucleic Acids02:43

Nucleic Acids

Nucleic acids are the most important macromolecules for the continuity of life. They carry the cell's genetic blueprint and carry instructions for its functioning.
DNA and RNA
The two main types of nucleic acids are deoxyribonucleic acid (DNA) and ribonucleic acid (RNA). DNA is the genetic material in all living organisms, ranging from single-celled bacteria to multicellular mammals. It is in the nucleus of eukaryotes and in the organelles, chloroplasts, and mitochondria. In prokaryotes, the...
Conjugated Proteins02:50

Conjugated Proteins

Simple proteins and protein complexes contain only amino acids. In contrast, many other proteins, called conjugated proteins, covalently bond with non-protein moieties.
Nucleoproteins are protein complexes that contain nucleic acids, categorized as deoxyribonucleoproteins (DNPs) or ribonucleoproteins (RNPs) respectively. The nucleosome is a typical example of a DNP where nuclear DNA is associated with histone proteins. The major antigen for the Covid-19 virus SARS-CoV is an RNP that is critical...
Translation01:31

Translation

Lesson: Translation
Translation is the process of synthesizing proteins from the genetic information carried by messenger RNA (mRNA). Following transcription, it constitutes the final step in the expression of genes. This process is carried out by ribosomes, complexes of protein and specialized RNA molecules. Ribosomes, transfer RNA (tRNA), and other proteins produce a chain of amino acids—the polypeptide—as the end product of translation.
Translation Produces the Building Blocks of Life
Nucleic Acid Structure01:25

Nucleic Acid Structure

The pentose sugar in DNA is deoxyribose, while in RNA the pentose sugar is ribose. The difference between the sugars is the presence of the hydroxyl group on the ribose's second carbon and a hydrogen on the deoxyribose's second carbon. The phosphate residue attaches to the hydroxyl group of the 5′ carbon of one sugar and the hydroxyl group of the 3′ carbon of the sugar of the next nucleotide, which forms  a 5′ to 3′ phosphodiester linkage.
DNA Structure
DNA has a double-helix structure. The...

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相关实验视频

Updated: Jul 14, 2026

Rapid Colorimetric Assays to Qualitatively Distinguish RNA and DNA in Biomolecular Samples
05:52

Rapid Colorimetric Assays to Qualitatively Distinguish RNA and DNA in Biomolecular Samples

Published on: February 4, 2013

染色体是蛋白质-RNA相互作用模块.

A Akhtar1, D Zink, P B Becker

  • 1Adolf Butenandt-Institut, Molekularbiologie, Ludwig-Maximilians-Universität, München, Germany.

Nature
|October 3, 2000
PubMed
概括

男性的X染色体是男性的X染色体.

科学领域:

  • 表观遗传学 在表观遗传学中,表观遗传学是指表观遗传学.
  • 分子生物学分子生物学
  • 遗传学 是一个遗传学.

背景情况:

  • 草虫剂量补偿在表观遗传上使两性之间的X链基因表达相等.
  • 这一过程涉及MOF在氨酸16的基因组H4乙化,这对男性的生存能力至关重要.
  • MOF是男性特异性致死性 (MSL) 综合体的一部分,但其X染色体关联机制尚不清楚.

研究的目的:

  • 阐明MOF对男性X染色体的招募机制.
  • 研究RNA在男性剂量补偿复合体中的作用.

主要方法:

  • 在体内和体外结合测定使用MOF和MSL-3的染色体.
  • 对MOF与roX2RNA相互作用的分析.

主要成果:

  • MOF与男性X染色体的关联取决于RNA相互作用.
  • 在体内,MOF的染色体特异地与roX2 RNA结合.
  • MOF和MSL-3的染色体作为RNA相互作用模块起作用.

结论:

  • RNA,特别是roX2,对于将MOF准男性X染色体至关重要.

更多相关视频

Optical Tweezers to Study RNA-Protein Interactions in Translation Regulation
12:26

Optical Tweezers to Study RNA-Protein Interactions in Translation Regulation

Published on: February 12, 2022

RNA-Associated Chromatin DNA-DNA Interaction Method
11:01

RNA-Associated Chromatin DNA-DNA Interaction Method

Published on: April 30, 2026

相关实验视频

Last Updated: Jul 14, 2026

Rapid Colorimetric Assays to Qualitatively Distinguish RNA and DNA in Biomolecular Samples
05:52

Rapid Colorimetric Assays to Qualitatively Distinguish RNA and DNA in Biomolecular Samples

Published on: February 4, 2013

Optical Tweezers to Study RNA-Protein Interactions in Translation Regulation
12:26

Optical Tweezers to Study RNA-Protein Interactions in Translation Regulation

Published on: February 12, 2022

RNA-Associated Chromatin DNA-DNA Interaction Method
11:01

RNA-Associated Chromatin DNA-DNA Interaction Method

Published on: April 30, 2026

  • 染色体作为RNA结合模块,可能将调节复合体引导到特定的基因组位置.