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相关概念视频

General Transcription Factors01:30

General Transcription Factors

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Tissue-specific transcription factors contribute to diverse cellular functions in mammals. For example, the gene for beta globin, a major component of hemoglobin, is present in all cells of the body. However, it is only expressed in red blood cells because the transcription factors that can bind to the promoter sequences of the beta globin gene are only expressed in these cells. Tissue-specific transcription factors also ensure that mutations in these factors may impair only the function of...
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Transcription Factors02:16

Transcription Factors

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Tissue-specific transcription factors contribute to diverse cellular functions in mammals. For example, the gene for beta globin, a major component of hemoglobin, is present in all cells of the body. However, it is only expressed in red blood cells because the transcription factors that can bind to the promoter sequences of the beta globin gene are only expressed in these cells. Tissue-specific transcription factors also ensure that mutations in these factors may impair only the function of...
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Master Transcription Regulators02:23

Master Transcription Regulators

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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...
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RNA Polymerase II Accessory Proteins02:36

RNA Polymerase II Accessory Proteins

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Proteins that regulate transcription can do so either via direct contact with RNA Polymerase or through indirect interactions facilitated by adaptors, mediators, histone-modifying proteins, and nucleosome remodelers. Direct interactions to activate transcription is seen in bacteria as well as in some eukaryotic genes. In these cases, upstream activation sequences are adjacent to the promoters, and the activator proteins interact directly with the transcriptional machinery. For example, in...
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Co-activators and Co-repressors02:04

Co-activators and Co-repressors

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Gene transcription is regulated by the synergistic action of several proteins that form a complex at a gene regulatory site. This is observed in eukaryotes, where the regulation of gene expression is a complex process. Regulatory proteins in eukaryotes can broadly be classified into two types – regulators that bind directly to specific DNA sequences and co-regulators that associate with regulatory proteins but cannot directly bind to the DNA. These co-regulators are further divided into...
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Combinatorial Gene Control02:33

Combinatorial Gene Control

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Combinatorial gene control is the synergistic action of several transcriptional factors to regulate the expression of a single gene. The absence of one or more of these factors may lead to a significant difference in the level of gene expression or repression.
The expression of more than 30,000 genes is controlled by approximately 2000-3000 transcription factors. This is possible because a single transcription factor can recognize more than one regulatory sequence. The specificity in gene...
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福克斯转录因子:简要概述

Wolfgang Link1, Bibiana I Ferreira2,3

  • 1Department of Cancer Biology, Sols-Morreale Biomedical Research Institute (IIBM), Spanish National Research Council (CSIC), Universidad Autónoma de Madrid (UAM), Madrid, Spain. walink@iib.uam.es.

Methods in molecular biology (Clifton, N.J.)
|November 20, 2024
PubMed
概括

叉头盒O (FOXO) 转录因子调节细胞平衡,并与代谢障碍和癌症有关. 制药战略旨在恢复FOXO活动,提供治疗潜力.

关键词:
癌症 癌症 癌症 癌症达夫-16 达夫-16 是一个这就是FOXO1的意义.在FOXO3中使用FOXO3.在FOXO4中使用FOXO4.在FOXO6中,我们使用了FOXO6.长寿 长寿是一个问题.治疗目标 治疗目标

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科学领域:

  • 分子生物学分子生物学
  • 细胞生物学 细胞生物学
  • 遗传学 遗传学是一种遗传学.

背景情况:

  • 叉头盒O (FOXO) 转录因子 (FOXO1,FOXO3,FOXO4,FOXO6) 是细胞平衡的关键调节者.
  • 最初在胰岛素信号中被发现,FOXOs控制能量代谢,氧化应激抵抗,细胞活力和增殖.
  • 对FOXO蛋白质的失调与代谢障碍,寿命和瘤发生有关.

研究的目的:

  • 总结FOXO转录因子在细胞平衡中的作用.
  • 突出FOXO失调在各种疾病中的参与.
  • 探索恢复FOXO活动的治疗潜力.

主要方法:

  • 对FOXO转录因子的现有文献的审查.
  • 分析FOXO在细胞过程和疾病途径中的作用.
  • 研究监管机制,包括翻译后的修改.

主要成果:

  • 福克索因子与向基因促进体结合,影响关键的细胞功能.
  • FOXO失调是代谢疾病和癌症发展的重要因素.
  • 翻译后的修改对于FOXO调节至关重要,失活通常与上游酶活性有关.

结论:

  • 恢复FOXO活动为各种疾病提供了一个有前途的治疗策略.
  • 了解FOXO调节对于开发新药干预措施至关重要.
  • 准FOXO通路可能为治疗代谢障碍和癌症提供新的途径.