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Related Concept Videos

The Eukaryotic Promoter Region02:40

The Eukaryotic Promoter Region

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...
The Eukaryotic Promoter Region02:40

The Eukaryotic Promoter Region

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...
Bacterial RNA Polymerase00:43

Bacterial RNA Polymerase

Unlike eukaryotes, bacteria use a single RNA Polymerase (RNAP) to transcribe all genes. The different subunits of bacterial RNAPhave distinct functions. The multisubunit structure of the bacterial RNAP helps the enzyme to maintain catalytic function, facilitate assembly, interact with DNA and RNA, and self-regulate its activity.
In most genes, the transcription site is a single base present upstream of the coding sequence. Though RNAP is a catalytically efficient enzyme, it does not recognize...
Prokaryotic Transcriptional Activators and Repressors01:58

Prokaryotic Transcriptional Activators and Repressors

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.
Transcription of prokaryotic...
Prokaryotic Transcriptional Activators and Repressors01:58

Prokaryotic Transcriptional Activators and Repressors

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.
Transcription of prokaryotic...
Reporter Genes02:11

Reporter Genes

Reporter genes are a type of protein-coding gene that are often tagged to a gene of interest. Once inside a target cell, reporter genes usually produce visually identifiable characteristics like fluorescence and luminescence when expressed along with the gene of interest. Thus, reporter genes “report” the presence or absence of genes of interest in an organism, determine the gene expression pattern, or track the physical location of a DNA segment or protein in the cell.
Commonly used reporter...

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DNA-affinity-purified Chip (DAP-chip) Method to Determine Gene Targets for Bacterial Two component Regulatory Systems
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Published on: July 21, 2014

[Bacterial promoter recognition and application].

Youqiang Xu1, Ma Cuiqing, Fei Tao

  • 1State Key Laboratory of Microbial Technology, Shandong University, Jinan 250100, China.

Sheng Wu Gong Cheng Xue Bao = Chinese Journal of Biotechnology
|January 12, 2011
PubMed
Summary
This summary is machine-generated.

This review covers bacterial promoters, essential regulators of gene expression. Understanding promoter recognition and application is key for controlling gene expression, optimizing product yields, and advancing metabolic engineering.

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Area of Science:

  • Microbiology
  • Molecular Biology
  • Biotechnology

Background:

  • Bacterial promoters are crucial regulators controlling gene expression strength and timing.
  • Modifying promoters allows for the study and manipulation of bacterial growth and metabolism.
  • Promoters are integral components in constructing vectors for heterologous gene expression.

Purpose of the Study:

  • To review the fundamental aspects of bacterial promoters.
  • To discuss methods for recognizing bacterial promoters.
  • To explore the applications of bacterial promoters in research and industry.

Main Methods:

  • Literature review of scientific publications on bacterial promoters.
  • Analysis of promoter function in gene expression regulation.
  • Examination of promoter utility in vector design and genetic engineering.

Main Results:

  • Bacterial promoters dictate the rate and conditions of gene transcription.
  • Promoter manipulation offers a tool for metabolic engineering and synthetic biology.
  • Effective promoter recognition is vital for successful heterologous protein production.

Conclusions:

  • The study and application of bacterial promoters are fundamental for gene regulation.
  • Understanding promoters enables enhanced biological catalysis and metabolic engineering.
  • This review synthesizes current knowledge on bacterial promoter recognition and applications.