Document Detail


Plant sigma factors and their role in plastid transcription.
MedLine Citation:
PMID:  17356883     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Plant sigma factors determine the promoter specificity of the major RNA polymerase of plastids and thus regulate the first level of plastome gene expression. In plants, sigma factors are encoded by a small family of nuclear genes, and it is not yet clear if the family members are functionally redundant or each paralog plays a particular role. The review presents the analysis of the information on plant sigma factors obtained since their discovery a decade ago and focuses on similarities and differences in structure and functions of various paralogs. Special attention is paid to their interaction with promoters, the regulation of their expression, and their role in the development of a whole plant. The analysis suggests that though plant sigma factors are basically similar, at least some of them perform distinct functions. Finally, the work presents the scheme of this gene family evolution in higher plants.
Authors:
Eugene A Lysenko
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't; Review     Date:  2007-03-14
Journal Detail:
Title:  Plant cell reports     Volume:  26     ISSN:  0721-7714     ISO Abbreviation:  Plant Cell Rep.     Publication Date:  2007 Jul 
Date Detail:
Created Date:  2007-07-10     Completed Date:  2007-08-30     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9880970     Medline TA:  Plant Cell Rep     Country:  Germany    
Other Details:
Languages:  eng     Pagination:  845-59     Citation Subset:  IM    
Affiliation:
Institute of Plant Physiology, Russian Academy of Sciences, Botanicheskaya ul. 35, 127276 Moscow, Russia. genlysenko@mail.ru
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MeSH Terms
Descriptor/Qualifier:
Gene Expression Regulation, Plant*
Plastids / genetics*
Sigma Factor / metabolism*
Transcription, Genetic*
Chemical
Reg. No./Substance:
0/Sigma Factor

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