Control of Azospirillum brasilense NifA activity by P II : effect of replacing Tyr residues of the NifA N-terminal domain on NifA activity - Archive ouverte HAL Access content directly
Journal Articles FEMS Microbiology Letters Year : 1999

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

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1
Pierre-Alexandre Kaminski
Claudine Elmerich
  • Function : Correspondent author
  • PersonId : 858414

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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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pasteur-03659718 , version 1 (05-05-2022)

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Florence Arsène, Pierre-Alexandre Kaminski, 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, 1999, 179 (2), pp.339-343. ⟨10.1111/j.1574-6968.1999.tb08747.x⟩. ⟨pasteur-03659718⟩

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