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Updated: Mar 1, 2026

A Murine Cell Line Based Model of Chronic CDK9 Inhibition to Study Widespread Non-Genetic Transcriptional Elongation Defects TEdeff in Cancers
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A Murine Cell Line Based Model of Chronic CDK9 Inhibition to Study Widespread Non-Genetic Transcriptional Elongation Defects TEdeff in Cancers

Published on: September 26, 2019

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HEXIM1/P-TEFb复合体控制RNA聚合酶II暂停释放和在神经元脱极化后立即早期的基因诱导

Myo Htet1, Camila Estay-Olmos1, Lan Hu2

  • 1Molecular Pharmacology and Neuroscience, Loyola University Chicago Health Science Center, Maywood, IL, 60153, USA.

The Journal of biological chemistry
|February 27, 2026
PubMed
概括

甲基比萨胺诱导性1 (HEXIM1) 蛋白质复合体调节神经元中的基因转录. 这项研究揭示了HEXIM1的存在.

关键词:
阿尔茨海默氏症是阿尔茨海默氏症的疾病立即早期的基因.膜去极化 膜去极化神经元神经元的神经元药理学 药理学 药理学 药理学 药理学转录延长因子转录延长因子转录组学 转录组学是指转录组学.

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Transcription Elongation Factors02:35

Transcription Elongation Factors

Transcription elongation is a dynamic process that alters depending upon the sequence heterogeneity of the DNA being transcribed. Hence, it is not surprising that the elongation complex's composition also varies along the way while transcribing a gene.
The transcription elongation is regulated via pausing of RNA polymerase on several occasions during transcription. In bacteria, these halts are necessary because the transcription of DNA into mRNA is coupled to the translation of that mRNA...
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Transcriptional attenuation occurs when RNA transcription is prematurely terminated due to the formation of a terminator mRNA hairpin structure.  Bacteria use these hairpins to regulate the transcription process and control the synthesis of several amino acids including histidine, lysine, threonine, and phenylalanine. Transcription attenuation takes place in the non-coding regions of mRNA.
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RNA Polymerase II Accessory Proteins

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Chromatin Structure Regulates pre-mRNA Processing

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Transcription Initiation01:47

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Bacterial Transcription

RNA polymerase (RNAP) carries out DNA-dependent RNA synthesis in both bacteria and eukaryotes. Bacteria do not have a membrane-bound nucleus. So, transcription and translation occur simultaneously, on the same DNA template.
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