Reconstitution and Characterization of NtrC Protein in a Deep-sea Piezophilic Bacterium, Shewanella violacea Strain DSS12

Abstract

  NtrC protein of piezophilic Shewanella violacea was overexpressed and purified, to confirm the protein-DNA interaction. An electrophoretic mobility shift assay demonstrated that the NtrC recognizes the sequence for NtrC binding within the region upstream of the glnA operon. Western blot analysis also showed that the NtrC is expressed at a higher level under high-pressure conditions than under atmospheric pressure conditions.