Ferredoxins are proteins found in all biological kingdoms and are involved in essential biological processes including photosynthesis, lipid metabolism, and biogeochemical cycles. Ferredoxins are classified into different groups based on the iron-sulfur (Fe-S) clusters that they contain. A new subtype classification and nomenclature system, based on the spacing between amino acids in the Fe-S binding motif, has been proposed in order to better understand ferredoxins' biological diversity and evolutionary linkage across different organisms. This new classification system has revealed an unparalleled diversity between ferredoxins and has helped identify evolutionarily linked ferredoxins between species. The current review provides the latest insights into ferredoxin functions and evolution, and the new subtype classification, outlining their potential biotechnological applications and the future challenges in streamlining the process.
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| http://dx.doi.org/10.3390/cimb46090574 | DOI Listing |
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