motile

METPO:1000702 · CLASS · REVIEWED

A motility in which an organism has the ability to move independently using metabolic energy.

Energy-dependent bacterial locomotion

Evidence-backed causal sketch linking motile phenotype to metabolic energy, ion motive force, flagella, pili, and directional regulation.

Energy-dependent bacterial locomotion Interactive directed graph showing evidence-backed causal relationships for motile.

Edge evidence

  • metabolic energy generates ion motive force biolink:produces

    Metabolism supports ion gradients that can power motility.

    • DOI:10.3389/fmicb.2021.659464 ion motive force powering the bacterial flagellar motor Supports energy transduction from ion gradients into motor function.
  • ion motive force enables flagellar motor RO:0002327

    Ion motive force powers rotation of the flagellar motor.

    • DOI:10.3389/fmicb.2021.659464 The Dynamic Ion Motive Force Powering Review directly addresses ion motive force powering flagellar motors.
  • flagellar motor enables motile RO:0002327

    Flagellar rotation enables independent bacterial movement.

    • DOI:10.3390/biom9070279 responsible for motility Supports flagella-driven motility.
  • type IV pilus enables motile RO:0002327

    Type IV pilus extension and retraction enable surface motility.

    • DOI:10.1038/s41579-019-0195-4 enable T4P to perform Supports pilus-mediated twitching and related motility functions.
  • chemotaxis signaling directs motile RO:0002211

    Chemotaxis signaling regulates motility direction in response to environmental changes.

    • DOI:10.3390/biom9070279 migrate towards more desirable environments Supports chemotaxis regulation of motile behavior.
  • MotA-MotB stator complex acts as transmembrane H+ channel activity

    The MotA-MotB stator acts as a transmembrane H+ channel.

    • DOI:10.3390/biom14121488 it can act as a transmembrane H+ channel
  • transmembrane H+ channel activity generates flagellar motor torque biolink:produces

    H+ flux through the stator generates torque via electrostatic interaction with FliG.

    • DOI:10.3390/biom14121488 conducts H+ through the channel to generate torque by electrostatic interactions between MotA and FliG
  • flagellar motor torque acts on FliG rotor protein

    Torque is generated by electrostatic interaction between the stator and the FliG rotor.

    • DOI:10.3390/biom14121488 electrostatic interactions between MotA and FliG generate torque on the rotor
  • flagellar motor torque enables flagellar motor RO:0002327

    Torque generation drives rotation of the flagellar motor.

    • DOI:10.3390/biom14121488 a membrane-embedded rotary motor fueled by an ion motive force across the cytoplasmic membrane
  • CheA histidine kinase phosphorylates CheY response regulator

    Phosphorylated CheA transfers phosphate to the response regulator CheY.

    • DOI:10.3390/biom14121488 Phosphorylated CheA transfers its phosphate group to a response regulator called CheY
  • CheY response regulator binds flagellar C-ring switch complex

    Phosphorylated CheY binds the C-ring switch complex to control rotation direction.

    • DOI:10.3390/biom14121488 Phosphorylated CheY (CheY-P) binds to the C-ring
  • flagellar C-ring switch complex regulates chemotaxis signaling RO:0002211

    CheY-P binding to the C-ring switches motor rotation direction, implementing chemotactic responses.

    • DOI:10.3390/biom14121488 allowing the motor to switch the direction of rotation from CCW to CW
  • PilB extension ATPase promotes type IV pilus extension RO:0002213

    PilB ATPase powers type IV pilus extension/assembly.

    • DOI:10.1128/msphere.00390-24 PilB (extension ATPase)
  • PilT retraction ATPase promotes type IV pilus retraction RO:0002213

    PilT ATPase powers type IV pilus retraction/disassembly.

    • DOI:10.1128/msphere.00390-24 PilT (retraction ATPase)
  • type IV pilus extension enables twitching motility RO:0002327

    Cycles of T4P extension and retraction power twitching surface motility.

    • DOI:10.1128/msphere.00390-24 recurrent cycles of T4P assembly (extension) and disassembly (retraction) power surface movement
  • type IV pilus retraction enables twitching motility RO:0002327

    Cycles of T4P extension and retraction power twitching surface motility.

    • DOI:10.1128/msphere.00390-24 recurrent cycles of T4P assembly (extension) and disassembly (retraction) power surface movement
  • twitching motility enables motile RO:0002327

    Twitching motility is a form of independent surface movement.

    • DOI:10.1128/msphere.00390-24 recurrent cycles of T4P assembly and disassembly power surface movement (twitching motility)
  • SprB adhesin surface movement drives gliding motility

    Movement of the SprB adhesin along the outer membrane drives gliding motility.

    • DOI:10.1128/jb.00068-24 gliding... is driven by the surface movement of adhesins (notably SprB) along the outer membrane
  • gliding motility enables motile RO:0002327

    Gliding motility is a non-flagellar mechanism of independent movement.

    • DOI:10.1128/jb.00068-24 gliding is a form of surface motility driven by adhesin movement

Provenance

Source
METPO (2025-11-25)
Definition source
DOI:10.1038/s41579-021-00626-4

Parent traits (1)

Synonyms (1)

  • yes RELATED_SYNONYM · metpo.owl

kg-microbe context

Matched 1 kg-microbe node via direct_metpo.

  • METPO:1000702 [+24.397, -70.567, +20.807, -80.811, …]

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. · CURATED_WITH_ORGANISM_EXAMPLE · codex

    Added Pseudomonas aeruginosa organism example with PMID-backed evidence.

  3. · CURATED_WITH_LITERATURE · codex

    Replaced PMID definition source with DOI-backed motility review and added causal graph for energy-dependent locomotion by flagella, type IV pili, ion motive force, and chemotaxis.

  4. · GROUND_CAUSAL_PREDICATES · claude

    Grounded 2 causal-edge predicate_id field(s) via mappings/predicate_grounding.tsv (RO:0002327×2).

  5. · GROUND_CAUSAL_PREDICATES · claude

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

  6. · GROUND_CAUSAL_PREDICATES · claude

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

  7. · GROUND_CAUSAL_NODES · claude

    Grounded 1 causal-node grounding field(s) via mappings/node_grounding.tsv (UniProtKB:R6TBR9×1).

  8. · RENAME_PREDICATE_LABELS · claude

    Renamed 1 causal-edge predicate label(s) to align with existing groundings: powers → enables ×1.

  9. · GROUND_CAUSAL_PREDICATES · claude

    Grounded 1 causal-edge predicate_id field(s) via mappings/predicate_grounding.tsv (RO:0002327×1).

  10. · GROUND_CAUSAL_NODES · claude

    Grounded 1 causal-node grounding field(s) via mappings/node_grounding.tsv (GO:0006935×1).

  11. · REMOVE_REDUNDANT_SYNONYM · claude

    Removed 1 synonym(s) whose text duplicated the label (seeder redundancy; no information lost).

  12. · ENRICH_CAUSAL_GRAPH · claude

    Added 14 evidence-backed generic edges (14 new nodes) from the deep-research report.

  13. · GROUND_CAUSAL_PREDICATES · claude

    Grounded 9 causal-edge predicate_id field(s) via mappings/predicate_grounding.tsv (RO:0002327×5, RO:0002213×2, biolink:produces×1, RO:0002211×1).

  14. · GROUND_CAUSAL_NODES · claude

    Grounded 1 causal-node grounding field(s) via mappings/node_grounding.tsv (GO:0043107×1).

  15. · GROUND_CAUSAL_NODES · claude

    Grounded 2 causal-node grounding field(s) via mappings/node_grounding.tsv (UniProtKB:G0HQV3×1, UniProtKB:A0A2X5A7X5×1).