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F0628

Sigma-Aldrich

Ferredoxin-NADP+ Reductase from Spinacia oleracea (spinach)

lyophilized powder, ≥15 units/mg solid, secondary activity: ≥10 units/mg solid NADPH diaphorase

Synonym(s):

Ferridoxin-NADP+ oxidoreductase

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About This Item

CAS Number:
Enzyme Commission number:
MDL number:
UNSPSC Code:
12352204
NACRES:
NA.54

form

lyophilized powder

Quality Level

specific activity

≥15 units/mg solid

foreign activity

NADH diaphorase activity ≤10 units/mg solid

storage temp.

−20°C

General description

Ferredoxin-NADP+ Reductase is a ferredoxin-soluble partner with a molar ratio to PSI of 0.9 and 3.

Application

Ferredoxin-NADP+ Reductase from Spinacia oleracea (spinach) has been used to test the effect of potential protein partners on the activity of the glyceraldehyde-3-phosphate dehydrogenase (GAPDH)−CP12 preparation. It has also been used in standard assay conditions for phycocyanobilin:ferredoxin oxidoreductase (PcyA) enzyme assay.
Ferredoxin-NADP+ Reductase was used in in vitro ferredoxin-dependent desaturation of fatty acids in cyanobacterial thylakoid membranes. It was also used to regulate glyceraldehyde-3-phosphate dehydrogenase.

Biochem/physiol Actions

Ferredoxin-NADP+ reductase catalyzes the reversible conversion of reduced ferredoxin to oxidized ferredoxin during photosynthesis. Ferredoxin-NADP(H) reductase constitutes a family of hydrophilic FAD-containing monomeric enzymes that deliver NADPH or low potential one-electron donors to redox-based metabolisms in plastids, mitochondria, and bacteria.
Ferredoxin-NADP+ reductase catalyzes the reversible conversion of reduced ferredoxin to oxidized ferredoxin during photosynthesis. Ferredoxin-NADP(H) reductase constitutes a family of hydrophilic FAD-containing monomeric enzymes that deliver NADPH or low potential one-electron donors to redox-based metabolisms in plastids, mitochondria, and bacteria.

Unit Definition

One unit will reduce 1.0 millimole of cytochrome C per min at pH 7.5 at 25 °C in the presence of spinach ferredoxin and NADP.

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Shin, M.
Methods in Enzymology, 23, 441-441 (1971)
Sara Baroni et al.
Biochemistry, 51(18), 3819-3826 (2012-04-24)
Plasmodium falciparum ferredoxin-NADP(+) reductase (FNR) is a FAD-containing enzyme that, in addition to be a promising target of novel antimalarial drugs, represents an excellent model of plant-type FNRs. The cofactor specificity of FNRs depends on differences in both k(cat) and
CRYSTALLIZATION OF FERREDOXIN-TPN REDUCTASE AND ITS ROLE IN THE PHOTOSYNTHETIC APPARATUS OF CHLOROPLASTS.
M SHIN et al.
Biochemische Zeitschrift, 338, 84-96 (1963-01-01)
Manuel Twachtmann et al.
The Plant cell, 24(7), 2979-2991 (2012-07-19)
To adapt to different light intensities, photosynthetic organisms manipulate the flow of electrons through several alternative pathways at the thylakoid membrane. The enzyme ferredoxin:NADP(+) reductase (FNR) has the potential to regulate this electron partitioning because it is integral to most
Ana Sánchez-Azqueta et al.
Biochimica et biophysica acta, 1817(7), 1063-1071 (2012-05-01)
The role of the highly conserved C266 and L268 of pea ferredoxin-NADP(+) reductase (FNR) in formation of the catalytically competent complex of the enzyme with NADP(H) was investigated. Previous studies suggest that the volume of these side-chains, situated facing the

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