SI.docx

TABLE S1 The distributions of homologues of the Fe(II) oxidation proteins in phylum Proteobacteria at genus level assessed by querying the non-reductant UniRef_90 database (E-value 1e-20). Data of asteroid impacts, solar luminosity, and fluctuations of atmospheric oxygen and carbon dioxide amount provided by Timetree (http://www.timetree.org) were displayed synchronously with divergence times in the form of timepanels. The estimated occurrence time of the Great Oxidation Event (GOE) event (~2,400 Mya) was marked with blue dotted line. [Sequence similarity network and protein structure prediction provide evolutionary insights into the microbial ferrous iron oxidation pathways]