相关实验视频

Updated: Jun 25, 2025

A Method to Study de novo Formation of Chromatin Domains
00:07

A Method to Study de novo Formation of Chromatin Domains

Published on: August 23, 2019

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与表观遗传调节相关的额外的性别状家族

Nackhyoung Kim1, Sukyoung Byun1, Soo-Jong Um1

  • 1Department of Integrative Bioscience and Biotechnology, Sejong University, 209 Neungdong-ro, Gwangjin-Gu, Seoul 05006, Republic of Korea.

International journal of molecular sciences
|May 25, 2024
PubMed
概括

ASXL基因家族通过表观遗传机制调节基因表达,影响发育和瘤抑制. 了解这些表观遗传控制可能会导致新的癌症疗法.

关键词:
ASXL ASXL 的意思在这种情况下,染色染色素表观遗传学是指表观遗传学.这是一个机制机制.监管 监管 监管 监管 监管 监管转录 转录 是一种转录.

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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...
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In animals, gender is determined by the number and type of sex chromosome. For example, human females have two X chromosomes, and males have one X and one Y chromosome, whereas C.elegans with one X chromosome is a male, and the one with two X chromosomes is a hermaphrodite.
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Heterochromatin02:38

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In 1928, a German botanist Emil Heitz observed the moss nuclei with a DNA binding dye. He observed that while some chromatin regions decondense and spread out in the interphase nucleus, others do not. He termed them euchromatin and heterochromatin, respectively. He proposed that the heterochromatin regions reflect a functionally inactive state of the genome. It was later confirmed that heterochromatin is transcriptionally repressed, and euchromatin is transcriptionally active chromatin.
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