rod shaped

METPO:1000681 · CLASS · REVIEWED

A cell shape in which an organism has an elongated, cylindrical morphology with relatively straight sides and rounded or flat ends.

Rod-shape MreB and peptidoglycan mechanism

Evidence-backed causal sketch linking rod shape to MreB-guided peptidoglycan synthesis, Rod complex activity, cell-wall elongation, and FtsZ division coupling.

Rod-shape MreB and peptidoglycan mechanism Interactive directed graph showing evidence-backed causal relationships for rod shaped.

Edge evidence

  • MreB enables Rod complex RO:0002327

    MreB organizes rod-shape elongation machinery.

    • DOI:10.1146/annurev-cellbio-010521-010834 MreB filaments interact with Rod complexes Supports MreB-Rod complex interaction in rod-shape regulation.
  • Rod complex directs peptidoglycan synthesis RO:0002211

    Rod complexes direct sidewall peptidoglycan synthesis.

    • DOI:10.1146/annurev-cellbio-010521-010834 Rod complexes drive cell wall insertion Supports Rod complex contribution to wall insertion.
  • peptidoglycan synthesis produces lateral cell-wall elongation METPO:2000202

    Directed peptidoglycan synthesis elongates rod-shaped cells.

    • DOI:10.1038/nrmicro2677 elongation mode of peptidoglycan synthesis Supports peptidoglycan synthesis in cell elongation.
  • lateral cell-wall elongation regulates rod shaped RO:0002211

    Lateral wall elongation preserves the cylindrical rod morphology.

    • DOI:10.1016/j.tim.2011.11.004 restores its rod shape Supports MreB-associated cell-wall synthesis as important for rod shape restoration and maintenance.
  • FtsZ coordinates with peptidoglycan synthesis

    FtsZ coordinates division-associated peptidoglycan synthesis with rod cell morphology.

    • DOI:10.1038/nrmicro1205 FtsZ collaborates with penicillin binding proteins Supports FtsZ-PBP collaboration in bacterial cell-shape generation.
  • RodA-PBP2 complex positively regulates rod shaped

    The active elongation synthase complex supports proper rod-shaped morphology during growth.

    • DOI:10.1038/s41467-023-39037-9 Structural opening couples RodA glycan polymerization and PBP2 crosslinking, a coupling essential in vivo for rod-shaped growth.
  • PBP2 structural opening activates RodA polymerization activity RO:0002213

    Conformational opening of PBP2 allosterically stimulates RodA polymerization.

    • DOI:10.1038/s41467-023-39037-9 Structural opening promotes RodA polymerization activity.
  • PBP2 structural opening enables peptidoglycan crosslinking RO:0002327

    The open state elevates the PBP2 TP domain toward the PG layer, enabling crosslinking.

    • DOI:10.1038/s41467-023-39037-9 Opening of PBP2 elevates the TP domain, facilitating crosslinking.
  • MreC activates RodA-PBP2 complex RO:0002213

    MreC binds the PBP2 pedestal domain and biases RodA-PBP2 into the open, catalytically active conformation.

    • DOI:10.1038/s41467-023-39037-9 MreC is implicated as an activator that promotes the open, catalytically active conformation of PBP2.
  • RodA polymerization activity regulates elongasome processivity RO:0002211

    RodA abundance/activity tunes processive dynamics of MreB-associated elongasomes.

    • DOI:10.1038/s41467-024-49785-x RodA abundance regulates elongasome processivity, reversal frequency, and pausing.
  • elongasome processivity contributes to rod-shaped sidewall reinforcement RO:0002326

    Processive circumferential synthesis lays long glycan hoops that mechanically reinforce the cylinder.

    • DOI:10.1038/s41467-024-49785-x Long glycan strands act as barrel-hoop-like reinforcing structures of the rod sidewall.

Provenance

Source
METPO (2025-11-25)
Author
Luke Wang
Definition source
DOI:10.1146/annurev-cellbio-010521-010834

Parent traits (1)

Synonyms (2)

  • S_rod RELATED_SYNONYM · metpo.owl
  • rod-shaped RELATED_SYNONYM · metpo.owl

kg-microbe context

Matched 1 kg-microbe node via direct_metpo.

  • METPO:1000681 [+3.060, +7.761, -10.358, +10.121, …]

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 Escherichia coli organism example with PMID-backed evidence.

  3. · CURATED_WITH_LITERATURE · codex

    Replaced PMID definition source with DOI-backed rod-shape source and added causal graph for MreB, Rod complex, peptidoglycan synthesis, lateral wall elongation, and FtsZ coupling.

  4. · GROUND_CAUSAL_PREDICATES · claude

    Grounded 1 causal-edge predicate_id field(s) via mappings/predicate_grounding.tsv (METPO:2000202×1).

  5. · GROUND_CAUSAL_PREDICATES · claude

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

  6. · RENAME_PREDICATE_LABELS · claude

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

  7. · GROUND_CAUSAL_PREDICATES · claude

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

  8. · GROUND_CAUSAL_NODES · claude

    Grounded 1 causal-node grounding field(s) via mappings/node_grounding.tsv (GO:0009252×1).

  9. · GROUND_CAUSAL_NODES · claude

    Grounded 2 causal-node grounding field(s) via mappings/node_grounding.tsv (UniProtKB:A0A1B1UYY2×1, UniProtKB:C0LUM8×1).

  10. · RENAME_PREDICATE_LABELS · claude

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

  11. · GROUND_CAUSAL_PREDICATES · claude

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

  12. · ENRICH_CAUSAL_GRAPH · claude

    Added 6 evidence-backed generic edges (7 new nodes) from the deep-research report.

  13. · GROUND_CAUSAL_PREDICATES · claude

    Grounded 5 causal-edge predicate_id field(s) via mappings/predicate_grounding.tsv (RO:0002213×2, RO:0002327×1, RO:0002211×1, RO:0002326×1).

  14. · GROUND_CAUSAL_NODES · claude

    Grounded 1 causal-node grounding field(s) via mappings/node_grounding.tsv (UniProtKB:A0A1L9R356×1).