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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...
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...
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...
Transfer RNA Synthesis02:36

Transfer RNA Synthesis

One of the unique features of tRNA is the presence of modified bases. In some tRNAs, modified bases account for nearly 20% of the total bases in the molecule. Altogether, these unusual bases protect the tRNA from enzymatic degradation by RNases.
Each of these chemical modifications is carried by a specific enzyme, post-transcription. All of these enzymes have unique base and site-specificity. Methylation, the most common chemical modification, is carried by at least nine different enzymes, with...
Transfer RNA Synthesis02:36

Transfer RNA Synthesis

One of the unique features of tRNA is the presence of modified bases. In some tRNAs, modified bases account for nearly 20% of the total bases in the molecule. Altogether, these unusual bases protect the tRNA from enzymatic degradation by RNases.
Each of these chemical modifications is carried by a specific enzyme, post-transcription. All of these enzymes have unique base and site-specificity. Methylation, the most common chemical modification, is carried by at least nine different enzymes, with...
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...

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相关实验视频

Updated: May 8, 2026

Artificial RNA Polymerase II Elongation Complexes for Dissecting Co-transcriptional RNA Processing Events
10:59

Artificial RNA Polymerase II Elongation Complexes for Dissecting Co-transcriptional RNA Processing Events

Published on: May 13, 2019

Ty元素通过RNA中间体进行转移.

J D Boeke, D J Garfinkel, C A Styles

    Cell
    |March 1, 1985
    PubMed
    概括
    此摘要是机器生成的。

    这项研究表明,Ty转换涉及DNA到RNA到DNA的过程,类似于逆转录的逆转录. 转换是致变的,改变了Ty元素.

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    DNA-Tethered RNA Polymerase for Programmable In vitro Transcription and Molecular Computation
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    DNA-Tethered RNA Polymerase for Programmable In vitro Transcription and Molecular Computation

    Published on: December 29, 2021

    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

    相关实验视频

    Last Updated: May 8, 2026

    Artificial RNA Polymerase II Elongation Complexes for Dissecting Co-transcriptional RNA Processing Events
    10:59

    Artificial RNA Polymerase II Elongation Complexes for Dissecting Co-transcriptional RNA Processing Events

    Published on: May 13, 2019

    DNA-Tethered RNA Polymerase for Programmable In vitro Transcription and Molecular Computation
    09:26

    DNA-Tethered RNA Polymerase for Programmable In vitro Transcription and Molecular Computation

    Published on: December 29, 2021

    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

    科学领域:

    • 分子生物学分子生物学
    • 遗传学 是一个遗传学.
    • 反转换机制的反转换机制.

    背景情况:

    • 元素是酵母中的逆转移子.
    • 了解转移是基因组稳定的关键.

    研究的目的:

    • 为了研究Ty转移的机制.
    • 为了确定Ty转位中的中间分子.
    • 为了评估Ty转移的突变性.

    主要方法:

    • 在GAL1促进器控制下使用标记Ty元素 (TyH3).
    • 在转化之前和之后对Ty元素的序列分析.
    • 在转换过程中分析内子拼接.

    主要成果:

    • 对Ty的转化涉及到Ty元素的重大结构变化.
    • 在转换过程中,内子拼接支持RNA中间体.
    • 序列遗传模式与复原病毒逆转录模型保持一致.
    • Ty转换对Ty元素具有变异性.

    结论:

    • Ty转换通过DNA -> RNA -> DNA路径进行.
    • TyRNA分子是转位的中间体.
    • 转换是一种影响Ty元素的突变性过程.