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. 1978 Feb;83(2):357-61.
doi: 10.1093/oxfordjournals.jbchem.a131921.

Ferredoxin-Sepharose 4B as a tool for the purification of ferredoxin-NADP+ reductase

M Shin, R Oshino
Free article

Ferredoxin-Sepharose 4B as a tool for the purification of ferredoxin-NADP+ reductase

M Shin et al. J Biochem. 1978 Feb.
Free article

Abstract

Ferredoxin immobilized on Sepharose 4B was prepared by reaction of CNBr-Sepharose 4B with spinach ferredoxin. The ferredoxin-Sepharose 4B conjugated ferredoxin-NADP+ reductase (NADPH: ferredoxin oxidoreductase, [EC 1.6.7.1]) in dilute buffer solution and released it in high salt concentrations. A novel method of preparation for the reductase was established by a combination of affinity adsorption on the ferredoxin-Sepharose 4B column with usual purification procedures. It was found using the new method, that there are two forms of ferredoxin-NADP+ reductase, FNR I and FNR II, in spinach. Comparative studies of the two components suggest that FNR I may be a dimer of FNR II.

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