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The Eukaryotic Promoter Region02:40

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The eukaryotic promoter region is a segment of DNA located upstream of a gene. It contains an RNA polymerase binding site, a transcription start site, and several cis-regulatory sequences.  The proximal promoter region is located in the vicinity of the gene and has cis-regulatory sequences and the core promoter. The core promoter is the binding site for RNA polymerase and is usually located between -35 and +35 nucleotides from the transcription start site. The distal promoter regions are...
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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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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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The organization of prokaryotic genes in their genome is notably different from that of eukaryotes. Prokaryotic genes are organized, such that the genes for proteins involved in the same biochemical process or function are located together in groups. This group of genes, along with their regulatory elements, are collectively known as an operon. The functional genes in an operon are transcribed together to give a single strand of mRNA known as polycistronic mRNA.
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Updated: Oct 24, 2025

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A Comprehensive Toolbox to Analyze Enhancer-Promoter Functions.

Benedetto Daniele Giaimo1, Tobias Friedrich2, Tilman Borggrefe3

  • 1Institute of Biochemistry, University of Giessen, Giessen, Germany. Benedetto.Giaimo@biochemie.med.uni-giessen.de.

Methods in Molecular Biology (Clifton, N.J.)
|August 12, 2021
PubMed
Summary

Next-generation sequencing and chromatin immunoprecipitation techniques accelerate gene transcription and chromatin regulation research. This book compiles protocols for genome-wide enhancer and promoter studies, aiding DNA repair and replication research.

Keywords:
DNA methylationEnhancersHistone variantsPromotersTranscriptioneRNAs

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Area of Science:

  • Molecular Biology
  • Genomics
  • Epigenetics

Background:

  • Gene transcription and chromatin regulation are fundamental biological processes.
  • Decades of research have advanced our understanding, with significant progress in recent years.
  • Next-generation sequencing (NGS) has revolutionized the study of these complex mechanisms.

Purpose of the Study:

  • To compile essential protocols for researchers studying gene expression.
  • To focus on innovative techniques for enhancer and promoter analysis.
  • To provide resources for researchers in adjacent fields like DNA repair and replication.

Main Methods:

  • Utilizing next-generation sequencing (NGS) for genome-wide analysis.
  • Employing chromatin immunoprecipitation (ChIP) techniques.
  • Leveraging genetic and biochemical experimental approaches.

Main Results:

  • NGS and ChIP have significantly accelerated knowledge gain in gene regulation.
  • A wide array of techniques are now available for genome-wide gene expression studies.
  • Focus on enhancer and promoter studies provides insights into regulatory elements.

Conclusions:

  • Innovative techniques, particularly NGS and ChIP, are crucial for modern gene transcription and chromatin regulation research.
  • This compilation serves as a valuable resource for researchers in genomics and related fields.
  • The presented methods offer broad applicability, including to DNA repair and replication studies.