Abstract
A wide range of Bacteria and Archaea sense cellular 2-oxoglutarate (2OG) as an indicator of nitrogen limitation. 2OG sensor proteins are varied, but most of those studied belong to the PII superfamily. Within the PII superfamily, GlnB and GlnK represent a widespread family of homotrimeric proteins (GlnB-K) that bind and respond to 2OG and ATP. In some bacterial phyla, GlnB-K proteins are covalently modified, depending on enzymes that sense cellular glutamine as an indicator of nitrogen sufficiency. GlnB-K proteins are central clearing houses of nitrogen information and bind and modulate a variety of nitrogen assimilation regulators and enzymes. NifI1 and NifI2 comprise a second widespread family of PII proteins (NifI) that are heteromultimeric, respond to 2OG and ATP, and bind and regulate dinitrogenase in Euryarchaeota and many Bacteria.
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Dates
Type | When |
---|---|
Created | 18 years, 2 months ago (June 25, 2007, 1:20 p.m.) |
Deposited | 3 years, 10 months ago (Oct. 14, 2021, 11:28 a.m.) |
Indexed | 2 days, 1 hour ago (Sept. 4, 2025, 10:13 a.m.) |
Issued | 17 years, 11 months ago (Oct. 1, 2007) |
Published | 17 years, 11 months ago (Oct. 1, 2007) |
Published Print | 17 years, 11 months ago (Oct. 1, 2007) |
@article{Leigh_2007, title={Nitrogen Regulation in Bacteria and Archaea}, volume={61}, ISSN={1545-3251}, url={http://dx.doi.org/10.1146/annurev.micro.61.080706.093409}, DOI={10.1146/annurev.micro.61.080706.093409}, number={1}, journal={Annual Review of Microbiology}, publisher={Annual Reviews}, author={Leigh, John A. and Dodsworth, Jeremy A.}, year={2007}, month=oct, pages={349–377} }