P II -Regulated Arginine Synthesis Controls Accumulation of Cyanophycin in Synechocystis sp. Strain PCC 6803
Open Access
- 1 April 2006
- journal article
- research article
- Published by American Society for Microbiology in Journal of Bacteriology
- Vol. 188 (7) , 2730-2734
- https://doi.org/10.1128/jb.188.7.2730-2734.2006
Abstract
Cyanophycin (multi-l-arginyl-poly-l-aspartic acid) is a nitrogen storage polymer found in most cyanobacteria and some heterotrophic bacteria. The cyanobacterium Synechocystis sp. strain PCC 6803 accumulates cyanophycin following a transition from nitrogen-limited to nitrogen-excess conditions. Here we show that the accumulation of cyanophycin depends on the activation of the key enzyme of arginine biosynthesis, N-acetyl-l-glutamate kinase, by signal transduction protein PII.Keywords
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