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Physiological evolution: Genomic redox footprints

Cell metabolism relies on redox reactions to harness energy for life. Cells need to sense and regulate their internal redox state, typically with cysteine thiols. At plastid origin, cysteine residue frequency increased in the diatom genome lineage, an evolutionary redox footprint preserved in plant DNA.

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Figure 1: Fluorescent mitochondria and chloroplasts in the diatom, Phaeodactylum tricornutum.

SHIRI GRAFF VAN CREVELD

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Correspondence to William F. Martin or Helmut Sies.

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Martin, W., Sies, H. Physiological evolution: Genomic redox footprints. Nature Plants 3, 17071 (2017). https://doi.org/10.1038/nplants.2017.71

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