The Lrp Family of Transcription Regulators in Archaea

Archaea possess a eukaryotic-type basal transcription apparatus that is regulated by bacteria-like transcription regulators. A universal and abundant family of transcription regulators are the bacterial/archaeal Lrp-like regulators. The Lrp family is one of the best studied regulator families in arc...

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Bibliographic Details
Published in:Archaea 2010-01, Vol.2010 (2010), p.172-181
Main Authors: Peeters, Eveline, Charlier, Daniel
Format: Article
Language:English
Subjects:
Archaea - chemistry
Archaea - metabolism
Bacteria
Biosynthesis
E coli
Famine
Gene expression
Gene Expression Regulation, Archaeal
Leucine-Responsive Regulatory Protein - chemistry
Leucine-Responsive Regulatory Protein - genetics
Leucine-Responsive Regulatory Protein - metabolism
Metabolic Networks and Pathways
Organisms
Phylogeny
Proteins
Review
RNA polymerase
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Summary:Archaea possess a eukaryotic-type basal transcription apparatus that is regulated by bacteria-like transcription regulators. A universal and abundant family of transcription regulators are the bacterial/archaeal Lrp-like regulators. The Lrp family is one of the best studied regulator families in archaea, illustrated by investigations of proteins from the archaeal model organisms: Sulfolobus, Pyrococcus, Methanocaldococcus, and Halobacterium. These regulators are extremely versatile in their DNA-binding properties, response to effector molecules, and molecular regulatory mechanisms. Besides being involved in the regulation of the amino acid metabolism, they also regulate central metabolic processes. It appears that these regulatory proteins are also involved in large regulatory networks, because of hierarchical regulations and the possible combinatorial use of different Lrp-like proteins. Here, we discuss the recent developments in our understanding of this important class of regulators.
ISSN:1472-3646
1472-3654
DOI:10.1155/2010/750457