Fox Cluster determinants for iron biooxidation in the extremely thermoacidophilic Sulfolobaceae.
Fox Cluster determinants for iron biooxidation in the extremely thermoacidophilic Sulfolobaceae.
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DOI:
10.1111/1462-2920.15727
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发表时间:
2022-03
影响因子:
5.1
通讯作者:
Kelly RM
中科院分区:
文献类型:
--
作者:
Counts JA;Vitko NP;Kelly RM
Within the extremely thermoacidophilic Sulfolobaceae, the capacity to oxidize iron varies considerably. While some species are prolific iron oxidizers (e.g., Metallosphaera sedula), other species do not oxidize iron at all (e.g., Sulfolobus acidocaldarius). Iron oxidation capacity maps to a genomic locus, referred to previously as the ‘Fox Cluster’, that encodes putative proteins that are mostly unique to the Sulfolobaceae. The role of putative proteins in the Fox Cluster has not been confirmed, but proteomic analysis here of iron-oxidizing membranes from M. sedula indicates that FoxA2 and FoxB (both cytochrome c oxidase-like subunits) and FoxC (CbsA/cytochrome b domain-containing) are essential. Further, comparative genomics (locus organization and gene disruptions) and transcriptomics (polarity effects and differential expression) connects these genomic determinants with disparate iron biooxidation and respiration measurements among Sulfolobaceae species. While numerous homologous proteins can be identified for FoxA in genome databases (COX-like domains are prevalent across all domains of life), few homologs exist for FoxC or for most other Fox Cluster proteins. Phylogenetic reconstructions suggest this locus may have existed in early Sulfolobaceae, while the only other close homologs to the locus appear in the recently discovered candidate phylum Marsarchaota.
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影响因子:
2.1
作者:
ARCHIBALD, F
通讯作者:
ARCHIBALD, F
影响因子:
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作者:
Bathe, Stephan;Norris, Paul R.
通讯作者:
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Castelle, Cindy J.;Roger, Magali;Guiral, Marianne
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Counts, James A.;Vitko, Nicholas P.;Kelly, Robert M.
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作者:
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通讯作者:
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