Characterization of NarJ, a System-specific Chaperone Required for Nitrate Reductase Biogenesis in Escherichia coli

The narGHJI operon encodes the three subunits, α, β, and γ, of the respiratory nitrate reductase complex in Escherichia coli. A fourth open reading frame of the operon encodes a putative protein, NarJ, which is not present in purified nitrate reductase, but is required for biogenesis of the membrane...

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