Talk:Polysulfide reductase
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This is an error - Polysulfide reductase is not NrfD. NrfD is a transmembrane subunit of the quinol dehydrogenase part of the periplasmic nitrite reductase. There is a similiar domain in polysulfide reductase, but this is not called NrfD. (Nrf stands for nitrite reductase expressed under formate)