ferredoxin


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Related to ferredoxin: Plastocyanin, Plastoquinone

fer·re·dox·in

 (fĕr′ĭ-dŏk′sĭn)
n.
An iron-containing protein present in green plants and certain anaerobic bacteria that functions in electron transport reactions in biochemical processes, such as photosynthesis.

ferredoxin

(ˌfɛrɪˈdɒksɪn)
n
(Biology) an iron- and sulphur-containing protein found in plants and microorganisms and involved in photosynthesis and nitrogen fixation

fer•re•dox•in

(ˌfɛr əˈdɒk sɪn)

n.
any of a group of red-brown proteins containing iron and sulfur and acting as an electron carrier during photosynthesis, nitrogen fixation, or oxidation-reduction reactions.
[1962; < Latin fer(rum) iron + redox + -in1]
References in periodicals archive ?
The ferredoxin reductase gene is regulated by the p53 family and sensitizes cells to oxidative stress-induced apoptosis.
Fhit interaction with ferredoxin reductase triggers generation of reactive oxygen species and apoptosis of cancer cells.
Genes involved in the electron transport chain were lacking, leading the authors to postulate substrate-level phosphorylation through phosphoglycerate, pyruvate, and acetate kinases, as well as the production of molecular hydrogen by pyruvate ferredoxin oxidoreductase (Pamp et al.
The query results showed that 296 sequences hit to "Epidermal Growth Factor (EGF) like region, conserved site," followed by 124 and 102 unigenes that match the genes encoding "2Fe-2S ferredoxin, iron-sulfur binding site," and "thiolase," respectively (Table 2).
The reduced ferredoxin is reoxidized by the hydrogenase to form hydrogen.
1 ribulose bisphosphate carboxylase 107 2 chlorophyll a/b-binding protein 13 3 ferredoxin i 13 4 fructose-bisphosphate aldolase 1 12 5 oxygen-evolving enhancer protein 11 6 nonspecific lipid-transfer protein 11 7 plastocyanin 7 8 glyceraldehyde 3-phosphate dehydrogenase 7 9 no similarity 6 10 10-kDa protein precursor 6 11 photosystem I subunit IV 6 12 caffeic acid O-methyltransferase 5 13 ribulose-bisphosphate carboxylase activase 5 14 no similarity 5 15 function unknown 5 16 photosystem II 10-kDa polypeptide 4 17 drought inducible protein 4 18 endopeptidase CIp 4 19 aldo/keto reductase 4 20 no similarity 4 21 Immature-pod Homologous group Putative genes No.
Siroheme and an iron-sulfur cluster aid in catalysis, and in photosynthetic tissues, ferredoxin serves as the electron donor.
The clostridia system also requires ferredoxin (Baldwin, 1965).
Russell and Martin offer yet another piece of circumstantial evidence that life may have emerged from iron sulfide-catalyzed chemistry: Many of the large proteins that drive basic biochemical reactions today--such as ferredoxin, a protein that mediates metabolic reactions--rely on smaller iron sulfur cofactors.
In addition, the higher the Fv, the greater will be the ability of pigments to transfer energy of expelled electrons to form the NADPH reducing agent, ATP, and ferredoxin reductase (FdR), and therefore the greater will be the C[O.