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I have been thinking about some alternative CO₂ fixation pathways. As almost all of them include ferredoxin reduction I started to wonder where does the ferredoxin comes from. I could not find any of the pathway in databases (ecocyc,kegg). Does any of you know if the biochemical pathway and the genes involved in synthesis are known?

Thanks,Martin

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Wikipedia:"ferredoxin". Ferredoxins are proteins containing FeS centres. –  Alan Boyd Feb 25 at 18:19
    
Yes, that is the definition of them. But in which biochemical pathway are they produced... –  MartinK Feb 25 at 18:21
    
They are proteins: encoded by genes, synthesised by ribosomes. –  Alan Boyd Feb 25 at 18:49
    
I do understand that! But I am interested with which genes are they encoded! –  MartinK Feb 25 at 19:01
    
plantphysiol.org/content/134/1/255.full is a link to the full text of a paper about the ferredoxins of Arabidopsis. That should get you started: if you are interested in ferredoxins from some other species you could obtain the sequences of the A. thaliana proteins and use those to search in other genomes. –  Alan Boyd Feb 25 at 19:13

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