Reaction pathways in transcript elongation
| Autor: | Peter H. von Hippel, Zvi Pasman |
|---|---|
| Rok vydání: | 2002 |
| Předmět: |
Genetics
biology General transcription factor Chemistry Organic Chemistry Eukaryotic transcription Biophysics RNA polymerase II Computational biology DNA-Directed RNA Polymerases Biochemistry Transcription preinitiation complex biology.protein Transcription factor II F Transcription factor II E RNA Messenger Transcription factor II B RNA polymerase II holoenzyme Transcription Factors |
| Zdroj: | Biophysical chemistry. |
| ISSN: | 0301-4622 |
| Popis: | Transcription of DNA into RNA is a central part of gene expression, and is highly regulated in all organisms. In order to approach transcription control systems on a molecular basis we must understand the mechanisms used by the transcription complex to discharge its various functions, which include transcript initiation, elongation, editing, and termination. In this article we describe recent progress in sorting out the multiple reaction pathways that are, at least in principle, available to the transcription complex at each DNA template position, and show how transcription control systems partition active complexes into these pathways. Understanding these regulatory processes requires an elucidation of the molecular details of how sequence- and factor-dependent changes in the conformations, stabilities, and reaction rates of the complexes determine function. Recent progress in unraveling these issues is summarized in this article and emerging principles that govern the regulation of the elongation phase of transcription are discussed. |
| Databáze: | OpenAIRE |
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