gliding

METPO:1000706 · CLASS · REVIEWED

A motile in which an organism moves smoothly along solid surfaces without flagella or pili.

Gliding surface motility mechanism

Evidence-backed causal sketch linking gliding to solid surfaces, cell-envelope motors, surface adhesins, and type IX secretion/gliding systems.

Gliding surface motility mechanism Interactive directed graph showing evidence-backed causal relationships for gliding.

Edge evidence

  • solid surface enables context for gliding

    Gliding is a mode of active bacterial movement over surfaces.

    • DOI:10.1146/annurev.micro.55.1.49 move actively over surfaces Supports surface movement as defining context for gliding.
  • gliding motility machinery enables gliding RO:0002327

    Specialized machinery drives bacterial surface movement without flagella.

    • DOI:10.1016/j.cub.2016.12.035 without using flagella, pili, or other external appendages Supports gliding as a distinct motility mode.
  • surface adhesins transmit force for gliding

    Surface adhesins couple internal motors to external substrates.

    • DOI:10.1038/s41579-021-00626-4 moves adhesins along the cell surface Review summarizes gliding models using moving surface adhesins.
  • type IX secretion system contributes to gliding motility machinery RO:0002326

    Type IX secretion-associated components contribute to some gliding systems.

    • DOI:10.1038/s41579-021-00626-4 type 9 secretion and gliding motility Supports linkage between type IX secretion and gliding machinery.
  • proton motive force enables gliding motility machinery RO:0002327

    Proton motive force can power gliding motility motors.

    • DOI:10.1038/s41579-021-00626-4 proton-driven motor that powers type 9 secretion and gliding motility Supports proton-driven gliding machinery in reviewed systems.
  • helical conveyor track guides surface adhesins

    Adhesins are translocated along an envelope-associated filamentous track during gliding.

    • DOI:10.1038/s42003-023-04472-3 Filamentous multirail structures in the cell envelope are associated with the gliding machinery and SprB adhesin translocation.
  • surface adhesins enables substratum coupling and traction RO:0002327

    Surface adhesins engage the substratum to generate traction.

    • DOI:10.1126/sciadv.abq0619 Surface adhesin at bacterial focal adhesions immobilizes motility complexes against the substratum to generate traction.
  • substratum coupling and traction causes cell propulsion biolink:causes

    Traction at substratum-coupled adhesins drives forward movement of the cell body.

    • DOI:10.1371/journal.pbio.3001443 Proton-dependent motors power adhesin surface translocation that propels the cell during gliding.
  • cell propulsion realizes gliding

    Propulsion of the cell body along a surface constitutes the gliding phenotype.

    • DOI:10.1371/journal.pbio.3001443 Adhesin surface translocation produces the smooth surface movement characteristic of gliding.
  • gliding machinery gene complement predicts gliding

    Presence of the core gliding/secretion machinery gene set predicts gliding capacity from genomes.

    • DOI:10.1021/acsomega.3c05155 T9GPred predicts gliding motility from an 11-protein mandatory component set across Bacteroidetes genomes.

Provenance

Source
METPO (2025-11-25)
Definition source
DOI:10.1146/annurev.micro.55.1.49

Parent traits (1)

kg-microbe context

Matched 1 kg-microbe node via direct_metpo.

  • METPO:1000706 [-1.115, +0.741, -2.784, -0.615, …]

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_LITERATURE · codex

    Reviewed gliding trait and added DOI-backed causal graph for surface gliding machinery, adhesins, type IX secretion, and proton motive force.

  3. · GROUND_CAUSAL_PREDICATES · claude

    Grounded 2 causal-edge predicate_id field(s) via mappings/predicate_grounding.tsv (RO:0002327×1, RO:0002326×1).

  4. · GROUND_CAUSAL_NODES · claude

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

  5. · 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.

  6. · RENAME_PREDICATE_LABELS · claude

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

  7. · GROUND_CAUSAL_PREDICATES · claude

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

  8. · REMOVE_REDUNDANT_SYNONYM · claude

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

  9. · ENRICH_CAUSAL_GRAPH · claude

    Added 5 evidence-backed generic edges (4 new nodes) from the deep-research report.

  10. · GROUND_CAUSAL_PREDICATES · claude

    Grounded 2 causal-edge predicate_id field(s) via mappings/predicate_grounding.tsv (RO:0002327×1, biolink:causes×1).