Abstract
Members of the TrmB family act as global transcriptional regulators for the activation or repression of sugar ABC transporters and central sugar metabolic pathways, including glycolytic, gluconeogenic, and other metabolic pathways, and also as chromosomal stabilizers in archaea. As a relatively newly classified transcriptional regulator family, there is limited experimental evidence for their role in Thermococcales, halophilic archaeon Halobacterium salinarum NRC1, and crenarchaea Sulfolobus strains, despite being one of the extending protein families in archaea. Recently, the protein structures of Pyrococcus furiosus TrmB and TrmBL2 were solved, and the transcriptomic data uncovered by microarray and ChIP-Seq were published. In the present review, recent evidence of the functional roles of TrmB family members in archaea is explained and extended to bacteria.
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