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関連する概念動画

Epigenetic Regulation01:46

Epigenetic Regulation

Epigenetic mechanisms play an essential role in healthy development. Conversely, precisely regulated epigenetic mechanisms are disrupted in diseases like cancer.
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...
Epigenetic Regulation01:46

Epigenetic Regulation

Epigenetic mechanisms play an essential role in healthy development. Conversely, precisely regulated epigenetic mechanisms are disrupted in diseases like cancer.
Master Transcription Regulators02:23

Master Transcription Regulators

Master transcription regulators are regulatory proteins that are predominantly responsible for regulating the expression of multiple genes. Often these genes work in concert to drive a  complex process. Activation of a master transcription regulator can lead to a cascade of transcriptional activation necessary for that outcome. These regulators can directly bind to the regulatory sequences of the various genes involved, or they can indirectly regulate transcription by binding to regulatory...
Master Transcription Regulators02:23

Master Transcription Regulators

Master transcription regulators are regulatory proteins that are predominantly responsible for regulating the expression of multiple genes. Often these genes work in concert to drive a  complex process. Activation of a master transcription regulator can lead to a cascade of transcriptional activation necessary for that outcome. These regulators can directly bind to the regulatory sequences of the various genes involved, or they can indirectly regulate transcription by binding to regulatory...
Abnormal Proliferation02:23

Abnormal Proliferation

Under normal conditions, most adult cells remain in a non-proliferative state unless stimulated by internal or external factors to replace lost cells. Abnormal cell proliferation is a condition in which the cell's growth exceeds and is uncoordinated with normal cells. In such situations, cell division persists in the same excessive manner even after cessation of the stimuli, leading to persistent tumors. The tumor arises from the damaged cells that replicate to pass the damage to the daughter...

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関連する実験動画

Updated: Jun 5, 2026

A Method to Study de novo Formation of Chromatin Domains
07:34

A Method to Study de novo Formation of Chromatin Domains

Published on: August 23, 2019

ポリコンブ複合体PRC2と,その生命の痕跡

Raphaël Margueron1, Danny Reinberg

  • 1Institut Curie, 26 Rue d'Ulm, 75005 Paris, France.

Nature
|January 21, 2011
PubMed
まとめ
この要約は機械生成です。

ポリコンブ抑制複合体2 (PRC2) を含むポリコンブ群のタンパク質は,遺伝子発現とクロマチン構造を調節する. 最近の研究では,非コーディングRNAを強調しています.

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Promoter Capture Hi-C: High-resolution, Genome-wide Profiling of Promoter Interactions
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Promoter Capture Hi-C: High-resolution, Genome-wide Profiling of Promoter Interactions

Published on: June 28, 2018

関連する実験動画

Last Updated: Jun 5, 2026

A Method to Study de novo Formation of Chromatin Domains
07:34

A Method to Study de novo Formation of Chromatin Domains

Published on: August 23, 2019

Toxicological Assays for Testing Effects of an Epigenetic Drug on Development, Fecundity and Survivorship of Malaria Mosquitoes
10:26

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Promoter Capture Hi-C: High-resolution, Genome-wide Profiling of Promoter Interactions
10:16

Promoter Capture Hi-C: High-resolution, Genome-wide Profiling of Promoter Interactions

Published on: June 28, 2018

科学分野:

  • エピジェネティクスと遺伝子調節
  • クロマチンの生物学
  • 発達生物学 発達生物学とは

背景:

  • ポリコンブ群 (PcG) タンパク質は,細胞のアイデンティティを維持する重要な表遺伝子調節体である.
  • 哺乳類の2つの主要なPCG複合体であるPRC1とPRC2は,クロマチンの構造を調節する.
  • PRC2はヒストンH3ライシン27メチル化を触媒化し,遺伝子発現と細胞の可塑性に影響を与えます.

研究 の 目的:

  • ポリコンブ抑制複合体2 (PRC2) の規制機構と機能的役割を明らかにする.
  • PRC2の採用と機能におけるノンコーディングRNAの関与を調査する.

主な方法:

  • PRC2の機能と調節に関する最近の研究のレビュー.
  • PRC2媒介のクロマチンの改変に関する実験データの分析.
  • PRC2.2.との非コーディングRNA相互作用の調査.

主要な成果:

  • PRC2は,細胞の分化,同一性,増殖,幹細胞の可塑性において重要な役割を果たしています.
  • 非コーディングRNAは,PRC2を標的遺伝子に勧誘する上で,新たに重要な役割を果たしている.
  • PRC2の活動は,発達中の遺伝子発現パターンの維持に不可欠です.

結論:

  • PRC2は,多様な生物学的機能を持つ中央の表遺伝子調節体です.
  • 非コーディングRNA媒介によるリクルートメントは,PRC2の調節に関する理解を広げています.
  • PRC2とその規制経路をターゲットにすることで,潜在的な治療の道が開けます.