Requirement of the nitrogen starvation-induced protein Sll0783 for polyhydroxybutyrate accumulation in Synechocystis sp. strain PCC 6803.

ABSTRACT: Nitrogen is often a limiting nutrient in natural habitats. Therefore, cyanobacteria have developed multiple responses, which are controlled by transcription factor NtcA and the PII-signaling protein, to adapt to nitrogen deficiency. Transcriptional analyses of Synechocystis sp. strain PCC 6803 under nitrogen-deficient conditions revealed a highly induced gene (sll0783) which is annotated as encoding a conserved protein with an unknown function. This gene is part of a cluster of seven genes and has potential NtcA-binding sites in the upstream region. Homologues of this cluster occur in some unicellular, nondiazotrophic cyanobacteria and in several Alpha, Beta-, and Gammaproteobacteria, as well as in some Gram-positive bacteria. Most of the heterotrophic bacteria harboring this gene cluster

SUBMITTER: Schlebusch M 

PROVIDER: S-EPMC2937498 | biostudies-literature | 2010 Sep

REPOSITORIES: biostudies-literature