Article
Cell-type specific modification of PII is involved in the regulation of nitrogen metabolism in the cyanobacterium Anabaena PCC 7120.
FEBS letters - 8 Oct 2004
Laurent Sophie, Forchhammer Karl, Gonzalez Leticia, Heulin Thierry, Zhang Cheng-Cai, Bédu Sylvie
Abstract excerpt
In the heterocystous cyanobacterium Anabaena PCC 7120, the modification state of the signalling PII protein is regulated according to the nitrogen regime of the cells, as already observed in some unicellular cyanobacteria. However, during the adaptation to diazotrophic growth conditions, PII is phosphorylated in vegetative cells while unphosphorylated in heterocysts. Isolation of mutants affected on PII...
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