Photosynthetic, pyridine nucleotide reductase and

Crystallization of Clostridium pasteurianum ferredoxin demonstration of functional interchangeability of spinach photosynthetic pyridine nucleotide reductase and bacterial ferredoxin suggestion that both be classified as ferredoxins... 

In 1956, San Pietro and Lang (87) found that the soluble fraction from chloroplasts was necessary for the photoreduction of DPN when a small amount of chloroplasts was used. Two years later, San Pietro and Lang (88) reported the purification of a factor from the soluble fraction, which they described as an enzyme named photosynthetic pyridine nucleotide reductase (PPNR). In earlier experiments, the preferred acceptor was DPN (San Pietro and Lang (87) but with the partially purified enzyme the rate of DPN reduction was 70 percent that observed with TPN (San Pietro and Lang (88)). 

Apella, E., and A. San Pietro Physical properties of photosynthetic pyridine nucleotide reductase. Biochem. Biophys. Res. Commun. 6, 349—358 (1962). 

Photosynthetic pyridine nucleotide reductase. I. Partial purification and... 

Shapiro, D. M. The purification and properties of photosynthetic pyridine nucleotide reductase from Euglena gracilis. Doctoral Thesis, Johns Hopkins University, Baltimore, Md. Quoted by San Pietro and Black (1965) (1961). 

San Pietro A, Lang HM Photosynthetic pyridine nucleotide reductase. 1. Partial purification and properties of the enzyme from spinach. J Biol Chem 1958, 231(l) 211-229. 

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