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Related Concept Videos

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.
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Artificial RNA Polymerase II Elongation Complexes for Dissecting Co-transcriptional RNA Processing Events
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Published on: May 13, 2019

Structural insights into Elongator function.

Sebastian Glatt1, Christoph W Müller

  • 1European Molecular Biology Laboratory, Structural and Computational Biology Unit, Meyerhofstrasse 1, 69117 Heidelberg, Germany.

Current Opinion in Structural Biology
|March 21, 2013
PubMed
Summary
This summary is machine-generated.

The Elongator complex, crucial for tRNA modification, has six subunits. This study explores their assembly, structure, and catalytic roles in cellular functions.

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Last Updated: May 13, 2026

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Area of Science:

  • Molecular Biology
  • Biochemistry
  • Genetics

Background:

  • The Elongator complex is a conserved eukaryotic factor initially linked to RNA polymerase II transcription.
  • Emerging evidence highlights its primary role in modifying uridine at the wobble position of tRNAs.
  • This complex comprises six highly conserved subunits involved in diverse cellular processes.

Purpose of the Study:

  • To consolidate structural and functional insights into individual Elongator subunits and subcomplexes.
  • To elucidate the role of each subunit in the assembly and catalytic activity of the Elongator complex.

Main Methods:

  • Homology modeling was used for Elp1, Elp2, and Elp3 subunits.
  • Crystal structure determination was performed for the Elp456 subcomplex.

Main Results:

  • Structural models and crystal structures provide a basis for understanding subunit contributions.
  • The study discusses the specific roles of subunits in Elongator complex assembly.
  • The catalytic functions of individual subunits within the complex are elucidated.

Conclusions:

  • The Elongator complex's function is strongly tied to tRNA modification.
  • Understanding subunit roles is key to deciphering Elongator complex assembly and activity.
  • This work provides a structural and functional framework for future Elongator research.