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Related Concept Videos

RNA Polymerase II Accessory Proteins02:36

RNA Polymerase II Accessory Proteins

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...
RNA Polymerase II Accessory Proteins02:36

RNA Polymerase II Accessory Proteins

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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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...
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RACE - Rapid Amplification of cDNA Ends02:35

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Rapid Amplification of cDNA Ends, or RACE, is one of the most effective methods to obtain a full-length cDNA from an mRNA sequence between a known internal region to the unknown sequence at the 5’ or 3’ end. The unknown region is cloned in the cDNA by a gene-specific primer that binds the known end, and a hybrid primer that attaches a predefined anchor sequence to the unknown end of the cDNA. The sequence in between is amplified by PCR with an anchor primer and a gene-specific primer.
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Updating the RNA polymerase CTD code: adding gene-specific layers.

Sylvain Egloff1, Martin Dienstbier, Shona Murphy

  • 1Université de Toulouse, UPS, Laboratoire de Biologie Moléculaire Eucaryote, F-31000 Toulouse, France.

Trends in Genetics : TIG
|May 25, 2012
PubMed
Summary
This summary is machine-generated.

The carboxyl-terminal domain (CTD) code, a pattern of RNA polymerase II modifications, regulates gene expression and mRNA processing. Understanding this code is key to deciphering gene regulation mechanisms.

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Area of Science:

  • Molecular Biology
  • Gene Regulation
  • Biochemistry

Background:

  • The carboxyl-terminal domain (CTD) of RNA polymerase II features tandem repeats crucial for mRNA production.
  • CTD modifications, particularly phosphorylation of Ser2 and Ser5, are vital for transcribing most genes.
  • Emerging research reveals gene-specific roles for novel CTD modifications.

Purpose of the Study:

  • To provide an updated review of the CTD code.
  • To incorporate recent findings on CTD modifications and their recognition.
  • To highlight the significance of CTD code understanding for gene expression regulation.

Main Methods:

  • Literature review of current research on CTD modifications.
  • Analysis of the CTD consensus sequence and its dynamic modifications.
  • Examination of protein recognition mechanisms for the CTD code.

Main Results:

  • The CTD code comprises a complex array of reversible modifications.
  • Specific CTD modifications are recognized by distinct proteins involved in transcription and RNA processing.
  • Newly discovered modifications exhibit gene-specific regulatory effects.

Conclusions:

  • CTD modifications are essential regulators of gene expression.
  • A comprehensive understanding of the CTD code is integral to understanding gene regulation.
  • Further research into novel CTD modifications will refine our knowledge of gene expression control.