相关实验视频

Updated: Jun 10, 2025

Isolation and Cultivation of Neural Progenitors Followed by Chromatin-Immunoprecipitation of Histone 3 Lysine 79 Dimethylation Mark
10:09

Isolation and Cultivation of Neural Progenitors Followed by Chromatin-Immunoprecipitation of Histone 3 Lysine 79 Dimethylation Mark

Published on: January 26, 2018

7.4K

针对基因组 lysine甲基化的表观遗传疗法:复杂的机制和临床挑战

Sarah Gold, Ali Shilatifard

    The Journal of clinical investigation
    |October 15, 2024
    PubMed
    概括

    向激素氨酸甲基化的表观遗传疗法正在进步,有新的FDA批准的药物和对激素氨酸甲基转移酶 (HKMT) 和脱甲基酶 (HKDM) 的持续研究. 未来的发展重点是复杂的破坏和基于癌症治疗的近距离策略.

    更多相关视频

    Direct Measurement of KDM1A Target Engagement Using Chemoprobe-based Immunoassays11:17

    Direct Measurement of KDM1A Target Engagement Using Chemoprobe-based Immunoassays

    Published on: June 13, 2019

    7.3K
    Global Level Quantification of Histone Post-Translational Modifications in a 3D Cell Culture Model of Hepatic Tissue08:12

    Global Level Quantification of Histone Post-Translational Modifications in a 3D Cell Culture Model of Hepatic Tissue

    Published on: May 5, 2022

    3.9K

    相关概念视频

    Histone Modification02:32

    Histone Modification

    The histone proteins have a flexible N-terminal tail extending out from the nucleosome. These histone tails are often subjected to post-translational modifications such as acetylation, methylation, phosphorylation, and ubiquitination. Particular combinations of these modifications form “histone codes” that influence the chromatin folding and tissue-specific gene expression.
    Acetylation
    The enzyme histone acetyltransferase adds acetyl group to the histones. Another enzyme, histone...
    13.1K
    Epigenetic Regulation01:37

    Epigenetic Regulation

    Epigenetic changes alter the physical structure of the DNA without changing the genetic sequence and often regulate whether genes are turned on or off. This regulation ensures that each cell produces only proteins necessary for its function. For example, proteins that promote bone growth are not produced in muscle cells. Epigenetic mechanisms play an essential role in healthy development. Conversely, precisely regulated epigenetic mechanisms are disrupted in diseases like cancer.
    X-chromosome...
    3.0K
    Spreading of Chromatin Modifications02:25

    Spreading of Chromatin Modifications

    The histone proteins in the nucleosomes are post-translationally modified (PTM) to increase or decrease access to DNA. The commonly observed PTMs are methylation, acetylation, phosphorylation, and ubiquitination of lysine amino acids in the histone H3 tail region. These histone modifications have specific meaning for the cell. Hence, they are called "histone code". The protein complex involved in histone modification is termed as "reader-writer" complex.
    Writers
    The writer...
    8.2K
    Chromatin Modification in iPS Cells01:32

    Chromatin Modification in iPS Cells

    Chromatin modification alters gene expression; therefore, scientists can add histone-modifying enzymes, histone variants, and chromatin remodeling complexes to somatic cells to aid reprogramming into pluripotent stem (iPS) cells.
    Compact chromatin makes reprogramming difficult. Enzymes, such as histone demethylases and acetyltransferases, are often added during reprogramming to loosen the chromatin, making the DNA more accessible to transcription factors. Molecules that inhibit histone...
    1.6K
    Inheritance of Chromatin Structures03:17

    Inheritance of Chromatin Structures

    Epigenetics is the study of inherited changes in a cell's phenotype without changing the DNA sequences. It provides a form of memory for the differential gene expression pattern to maintain cell lineage, position-effect variegation, dosage compensation, and maintenance of chromatin structures such as telomeres and centromeres. For example, the structure and location of the centromere on chromosomes are epigenetically inherited. Its functionality is not dictated or ensured by the underlying...
    6.2K
    Phase II Reactions: Methylation Reactions01:17

    Phase II Reactions: Methylation Reactions

    Methylation is a phase II biotransformation process involving the attachment of a methyl group to a substrate. Enzymes known as methyltransferases orchestrate this reaction.
    The mechanism of methylation unfolds in two stages. The first stage sees a methyltransferase enzyme facilitating the transfer of a methyl group from S-adenosylmethionine (SAM) to the substrate, forming S-adenosylhomocysteine (SAH). The second stage involves further metabolism of SAH into homocysteine, which can be recycled...
    149