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An iron-containing protein present in green plants and certain anaerobic bacteria that functions in electron transport reactions in biochemical processes, such as photosynthesis.


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


(ˌfɛr əˈdɒk sɪn)

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 proteins belonging to this group are ferredoxins, which represent the iron-sulphur cluster that performs the intermediate step in the electron transfer chain, transferring electrons from the flavoprotein to the terminal dioxygenase (Bertini et al.
Some plant proteins contain sulfur, such as ferredoxins, which participates in the photosynthetic process such as chlorophyll formation and electron transfer reactions (GILL et al.
a) 2FE-2S_FER_1 Motif, or ferredoxins, iron-sulfur binding region signature.
3], cytochrome c-553, ferredoxins and rubredoxin, discovery of multiheme high-molecular- weight cytochrome c, practice of an enzymatic electric cell for the activity assay, discovery of 1-methoxyPMS as a versatile photostable electron mediator, etc.
Amino acid sequences of ferredoxins from Atropa belladonna and Hyoscyamus niger: Their similarities to those in other tropane-alkaloid-containing plants.