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Control of Azospirillum brasilense NifA activity by P II : effect of replacing Tyr residues of the NifA N-terminal domain on NifA activity

Florence Arsène 1 1 Claudine Elmerich 1, *
* Corresponding author
Abstract : It was previously reported that the N-terminal domain of Azospirillum brasilense NifA was a negative regulator of the NifA activity and that the PII protein prevented this inhibition under nitrogen fixing conditions. Here, we show that a mutation of a single Tyr residue at position 18 of the N-terminal domain of NifA led to an active NifA protein that did not require PII for activation under nitrogen fixation conditions.
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https://hal-pasteur.archives-ouvertes.fr/pasteur-03659718
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Submitted on : Thursday, May 5, 2022 - 11:52:39 AM
Last modification on : Friday, May 6, 2022 - 3:38:37 AM

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Florence Arsène, , Claudine Elmerich. Control of Azospirillum brasilense NifA activity by P II : effect of replacing Tyr residues of the NifA N-terminal domain on NifA activity. FEMS Microbiology Letters, Wiley-Blackwell, 1999, 179 (2), pp.339-343. ⟨10.1111/j.1574-6968.1999.tb08747.x⟩. ⟨pasteur-03659718⟩

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