相关实验视频

Updated: Feb 23, 2026

Single-Molecule Imaging of EWS-FLI1 Condensates Assembling on DNA
07:05

Single-Molecule Imaging of EWS-FLI1 Condensates Assembling on DNA

Published on: September 8, 2021

2.8K

人体转录因子IIH的冷电子显微镜结构

Basil J Greber1,2, Thi Hoang Duong Nguyen1,2,3, Jie Fang4

  • 1California Institute for Quantitative Biology (QB3), University of California, Berkeley, California 94720, USA.

Nature
|September 14, 2017
PubMed
概括

人类转录因子IIH (TFIIH) 对于基因转录和DNA修复至关重要. 这项研究揭示了人体TFIIH的冷电子显微镜结构,详细说明了它的结构和子单元连接.

更多相关视频

High Sensitivity Measurement of Transcription Factor-DNA Binding Affinities by Competitive Titration Using Fluorescence Microscopy06:38

High Sensitivity Measurement of Transcription Factor-DNA Binding Affinities by Competitive Titration Using Fluorescence Microscopy

Published on: February 7, 2019

9.3K
High-throughput Purification of Affinity-tagged Recombinant Proteins07:44

High-throughput Purification of Affinity-tagged Recombinant Proteins

Published on: August 26, 2012

14.8K

相关概念视频

General Transcription Factors01:30

General Transcription Factors

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...
7.3K
Transcription Factors02:16

Transcription Factors

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...
83.1K
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...
14.2K
Transcription Elongation Factors02:35

Transcription Elongation Factors

4.9K
Eukaryotic Transcription Activators02:42

Eukaryotic Transcription Activators

Transcription activators are proteins that promote the transcription of genes from DNA to RNA. In most cases, these proteins contain two separate domains ‒ a domain that binds to DNA and a domain for activating transcription; however, in some cases, a single domain is responsible for both binding and activation of transcription, as seen in the glucocorticoid receptor and MyoD.
The binding domains are capable of recognizing and interacting with regulatory sequences on the DNA. These...
12.9K
Co-activators and Co-repressors02:04

Co-activators and Co-repressors

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...
8.7K