carboxydotrophic

METPO:1000633 · CLASS · REVIEWED

A trophic type in which an organism derives energy from the oxidation of carbon monoxide.

Carboxydotrophic carbon monoxide oxidation mechanism

DOI-backed graph linking carbon monoxide, carbon monoxide dehydrogenase, respiratory electron transport, and energy conservation.

Carboxydotrophic carbon monoxide oxidation mechanism Interactive directed graph showing evidence-backed causal relationships for carboxydotrophic.

Edge evidence

  • carboxydotrophic uses energy substrate carbon monoxide

    Carboxydotrophs use carbon monoxide to support growth or metabolism.

    • DOI:10.1038/nrmicro1595 CO supports the growth and metabolism Supports carbon monoxide as an energy-supporting substrate.
  • carbon monoxide dehydrogenase oxidizes carbon monoxide METPO:2000016

    CODH catalyzes carbon monoxide oxidation.

    • DOI:10.1038/nrmicro1595 CO dehydrogenase (CODH), to oxidize CO Supports CODH-mediated CO oxidation.
  • molybdenum hydroxylase enzyme class for carbon monoxide dehydrogenase

    Aerobic CO oxidizers use a molybdenum hydroxylase CODH.

    • DOI:10.1038/nrmicro1595 use a molybdenum hydroxylase Supports molybdenum hydroxylase classification of aerobic CODH.
  • carbon monoxide oxidized to carbon dioxide METPO:2007405

    CO oxidation yields carbon dioxide.

    • DOI:10.1007/s00775-018-1541-0 oxidation of CO to CO2 Supports CO-to-CO2 conversion by CODH.
  • carbon monoxide dehydrogenase feeds electrons into respiratory chain METPO:2007402

    CO oxidation is coupled to respiratory electron transfer.

    • DOI:10.1111/j.1574-6968.1986.tb01858.x branched respiratory chain Supports respiratory-chain coupling in aerobic CO-utilizing bacteria.
  • respiratory chain depends on CO-insensitive terminal oxidase RO:0002502

    CO-utilizing bacteria use a CO-insensitive terminal oxidase branch.

    • DOI:10.1111/j.1574-6968.1986.tb01858.x CO-insensitive terminal oxidase Supports terminal oxidase adaptation for CO metabolism.
  • respiratory chain generates proton motive force biolink:produces

    Respiratory CO oxidation conserves energy as proton motive force.

    • DOI:10.1111/j.1574-6968.1986.tb01858.x pmf-driven reversed electron transfer Supports pmf involvement in aerobic carboxydotrophic energy metabolism.
  • proton motive force drives formation of reduced pyridine nucleotides biolink:produces

    Reverse electron transfer can form reduced pyridine nucleotides.

    • DOI:10.1111/j.1574-6968.1986.tb01858.x formation of reduced pyridine nucleotides Supports pmf-driven reverse electron transfer output.
  • Ni,Fe-carbon monoxide dehydrogenase has quality oxygen sensitivity

    Ni,Fe-CODHs are oxygen sensitive, restricting them to anaerobic carboxydotrophs.

    • DOI:10.1128/jb.00332-22 Ni,Fe-CODHs are noted as oxygen sensitive and associated with anaerobic carboxydotrophs.
  • molybdenum hydroxylase has quality oxygen tolerance

    Cu,Mo-CODHs are O2-tolerant, enabling aerobic CO metabolism.

    • DOI:10.1128/jb.00332-22 Cu,Mo-CODHs are O2-tolerant (aerobic CO metabolism).
  • cox operon encodes molybdenum hydroxylase biolink:encodes

    cox operons encode the coxS/coxM/coxL aerobic Mo-CODH subunits.

    • DOI:10.1128/jb.00332-22 Mo-CODH is encoded in cox operons that include coxS, coxM, and coxL.
  • coo operon encodes Ni,Fe-carbon monoxide dehydrogenase biolink:encodes

    coo operons encode Ni,Fe-CODH plus accessory proteins for energy conservation.

    • DOI:10.1128/jb.00332-22 coo operons specifically encode CODH plus accessory proteins for energy conservation.
  • CooA activates transcription of coo operon

    CO binding to CooA Fe(II)-heme allosterically activates coo operon transcription.

    • DOI:10.1128/jb.00332-22 CO binding to Fe(II)-heme allosterically activates promoter binding and RNAP recruitment of coo operons.
  • RcoM regulates cox operon RO:0002211

    RcoM is a high-affinity CO sensor regulating aerobic coxMSL genes.

    • DOI:10.1128/jb.00332-22 RcoM regulates aerobic CO oxidation and was originally identified upstream of coxMSL genes.
  • proton motive force powers ATP synthase

    The ion motive force generated by CO oxidation drives ATP synthase.

    • DOI:10.1186/s40643-023-00705-9 Generates an ion motive force that drives ATP synthesis.
  • molybdenum hydroxylase coupled to reduction of dioxygen

    Mo-CODH-mediated CO oxidation is coupled to O2 reduction aerobically.

    • DOI:10.1101/2023.01.17.524042 Mo-CODH-mediated CO oxidation supports O2 reduction aerobically.

Provenance

Source
METPO (2025-11-25)
Definition source
DOI:10.1038/nrmicro1595

Parent traits (1)

kg-microbe context

Matched 1 kg-microbe node via direct_metpo.

  • METPO:1000633 [-2.124, -2.915, -5.468, -0.095, …]

512-dim DeepWalkSkipGramEnsmallen embedding from kg-microbe (2026-04-25).

Nearest neighbors in embedding space

Top-8 cosine-similar METPO traits from the 2026-04-25 deepwalk (512-D).

Curation history

  1. · SEEDED_FROM_METPO · seed_from_metpo

    imported from data/raw/metpo.owl (CLASS)

  2. · ADDED_CAUSAL_GRAPH · codex

    Added DOI-backed causal graph for CODH-mediated carbon monoxide oxidation, respiratory-chain coupling, and energy conservation.

  3. · GROUND_CAUSAL_PREDICATES · claude

    Grounded 1 causal-edge predicate_id field(s) via mappings/predicate_grounding.tsv (METPO:2000016×1).

  4. · GROUND_CAUSAL_PREDICATES · claude

    Grounded 1 causal-edge predicate_id field(s) via mappings/predicate_grounding.tsv (biolink:produces×1).

  5. · GROUND_CAUSAL_PREDICATES · claude

    Grounded 2 causal-edge predicate_id field(s) via mappings/predicate_grounding.tsv (METPO:2007405×1, METPO:2007402×1).

  6. · GROUND_CAUSAL_NODES · claude

    Grounded 1 causal-node grounding field(s) via mappings/node_grounding.tsv (GO:0022904×1).

  7. · GROUND_CAUSAL_NODES · claude

    Grounded 1 causal-node grounding field(s) via mappings/node_grounding.tsv (METPO:1007500×1).

  8. · GROUND_CAUSAL_NODES · claude

    Grounded 2 causal-node grounding field(s) via mappings/node_grounding.tsv (UniProtKB:A0A061JSS8×1, UniProtKB:A0A099I9V3×1).

  9. · RETYPE_CAUSAL_NODES · claude

    Re-typed 1 causal-node node_type field(s) to align with CausalNodeTypeEnum semantics: proton motive force: BIOLOGICAL_PROCESS → STATE ×1.

  10. · RENAME_PREDICATE_LABELS · claude

    Renamed 1 causal-edge predicate label(s) to align with existing groundings: requires → depends on ×1.

  11. · GROUND_CAUSAL_PREDICATES · claude

    Grounded 1 causal-edge predicate_id field(s) via mappings/predicate_grounding.tsv (RO:0002502×1).

  12. · GROUND_CAUSAL_PREDICATES · claude

    Grounded 1 causal-edge predicate_id field(s) via mappings/predicate_grounding.tsv (biolink:produces×1).

  13. · ENRICH_CAUSAL_GRAPH · claude

    Added 8 evidence-backed generic edges (9 new nodes) from the deep-research report.

  14. · GROUND_CAUSAL_PREDICATES · claude

    Grounded 3 causal-edge predicate_id field(s) via mappings/predicate_grounding.tsv (biolink:encodes×2, RO:0002211×1).

  15. · GROUND_CAUSAL_NODES · claude

    Grounded 1 causal-node grounding field(s) via mappings/node_grounding.tsv (UniProtKB:A0A415TT77×1).

  16. · GROUND_CAUSAL_NODES · claude

    Grounded 1 causal-node grounding field(s) via mappings/node_grounding.tsv (CHEBI:15379×1).

  17. · GROUND_CAUSAL_NODES · claude

    Grounded 2 causal-node grounding field(s) via mappings/node_grounding.tsv (UniProtKB:A0A1D7QXJ2×1, UniProtKB:A0A0D5N3T8×1).