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2 changes: 1 addition & 1 deletion README.md
Original file line number Diff line number Diff line change
Expand Up @@ -68,7 +68,7 @@ records, not records; phenotypes are TraitMech records. See
| SECRETION_SYSTEM | 1 | | | |
| SPORE | 1 | | | |

17 records are grounded in GO; 2 carry minted identifiers. 19 list components, 9 carry causal graphs (56 evidence-backed edges), 8 link to TraitMech traits, and 5 carry licensed, cited imaging evidence.
17 records are grounded in GO; 2 carry minted identifiers. 19 list components, 19 carry causal graphs (152 evidence-backed edges), 8 link to TraitMech traits, and 5 carry licensed, cited imaging evidence.
<!-- END GENERATED CORPUS STATS -->

Run `just report` for the live report. Every current record is
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12 changes: 12 additions & 0 deletions data/structures/appendage/bacterial_type_flagellum.yaml
Original file line number Diff line number Diff line change
Expand Up @@ -558,19 +558,25 @@ causal_graphs:
- subject: c_ring
predicate: drives
object: rotation
description: Torque on FliG and the C ring turns the MS ring, rod, hook, and filament
as a rigid flagellar rotor.
evidence:
- reference: DOI:10.1016/j.tim.2014.12.011
notes: The C ring, MS ring and rod rotate as one rigid rotor.
- subject: rotation
predicate: propels
object: filament
description: Rotation is transmitted from the basal body through the hook to the
external helical filament.
evidence:
- reference: DOI:10.1146/annurev.biochem.72.121801.161737
notes: Rotation of the helical filament produces thrust.
- subject: filament
predicate: enables
object: swimming
predicate_id: RO:0002327
description: The rotating helical filament acts as a propeller that generates
thrust for swimming motility.
evidence:
- reference: DOI:10.1146/annurev.biochem.72.121801.161737
notes: Berg 2003.
Expand Down Expand Up @@ -698,5 +704,11 @@ curation_history:
reviewed UniProt examples, type=family entries, and unchanged family consensus
across curated scope examples.
llm_assisted: true
- timestamp: '2026-09-04T01:40:08Z'
curator: codex
action: ENHANCE_CAUSAL_GRAPH
changes: Added descriptions to the remaining flagellar torque-generation edges so
every edge now states the mechanistic step it represents.
llm_assisted: true
xrefs:
- uniprot.location:SL-0307
86 changes: 86 additions & 0 deletions data/structures/appendage/type_iv_pilus.yaml
Original file line number Diff line number Diff line change
Expand Up @@ -71,6 +71,85 @@ functions:
evidence:
- reference: DOI:10.1038/nrmicro.2017.40
notes: A comprehensive guide to pilus biogenesis in Gram-negative bacteria.
causal_graphs:
- graph_id: extension_retraction_twitching
title: PilB and PilT drive type IV pilus extension-retraction cycles
description: The extension ATPase assembles pilin subunits into the extracellular
filament, and the retraction ATPase pulls an attached filament back through the
envelope. Surface-attached retraction generates the force used for twitching motility.
graph_kind: FUNCTION
scope_status: MECHANISTIC
nodes:
- node_id: extension_atpase
label: PilB-family extension ATPase
node_type: GENE_OR_PROTEIN
component_ref: extension_atpase
- node_id: major_pilin
label: major type IV pilin
node_type: GENE_OR_PROTEIN
component_ref: major_pilin
- node_id: pilus_filament
label: type IV pilus
node_type: STRUCTURE
grounding: GO:0044096
- node_id: surface_bound_pilus
label: surface-bound type IV pilus
node_type: STATE
- node_id: retraction_atpase
label: PilT-family retraction ATPase
node_type: GENE_OR_PROTEIN
component_ref: retraction_atpase
- node_id: twitching_motility
label: type IV pilus-dependent motility
node_type: BIOLOGICAL_PROCESS
grounding: GO:0043107
edges:
- subject: extension_atpase
predicate: extends
object: pilus_filament
description: The cytoplasmic PilB-family ATPase powers pilus extension from the
inner-membrane assembly platform.
evidence:
- reference: DOI:10.1038/nrmicro.2017.40
notes: Hospenthal, Costa and Waksman 2017 review the PilB-family ATPase as the
motor that extends Gram-negative type IV pili.
- subject: major_pilin
predicate: polymerizes into
object: pilus_filament
description: Major pilin subunits form the surface-exposed type IV pilus polymer.
evidence:
- reference: DOI:10.1038/nrmicro.2017.40
notes: Hospenthal, Costa and Waksman 2017 describe T4P fibres as polymers of
pilin subunits assembled by the biogenesis machinery.
- subject: pilus_filament
predicate: reaches
object: surface_bound_pilus
description: Extension projects the pilus outward so its distal end can bind a
surface or neighboring cell.
evidence:
- reference: DOI:10.1073/pnas.121171698
notes: Skerker and Berg 2001 directly observed Pseudomonas aeruginosa type IV
pili extending, attaching at their distal ends and retracting.
- subject: retraction_atpase
predicate: retracts
object: surface_bound_pilus
description: The PilT-family ATPase depolymerizes the attached filament back into
the envelope.
evidence:
- reference: DOI:10.1038/35024105
notes: Merz, So and Sheetz 2000 measured Neisseria gonorrhoeae pilus retraction
and showed that force generation and motility require PilT.
- subject: surface_bound_pilus
predicate: pulls cell during
object: twitching_motility
description: Retraction of a surface-bound filament pulls the cell body forward.
evidence:
- reference: DOI:10.1038/35024105
notes: Merz, So and Sheetz 2000 used laser tweezers to show that T4P filaments
retract with enough force to move cells.
- reference: DOI:10.1073/pnas.121171698
notes: Skerker and Berg 2001 directly observed Pseudomonas aeruginosa pili alternating
extension and retraction during surface motility.
mapping_status: PROPOSED
curation_history:
- timestamp: '2026-08-30T19:30:00Z'
Expand Down Expand Up @@ -107,6 +186,13 @@ curation_history:
and exact GO identity, preserved annotation quality metadata, and stored no imaging
volumes.
llm_assisted: true
- timestamp: '2026-09-04T00:58:09Z'
curator: codex
action: ADD_CAUSAL_GRAPH
changes: Added a DOI-backed FUNCTION graph for the PilB/PilT extension-retraction
cycle that assembles type IV pili and pulls surface-bound cells during twitching
motility.
llm_assisted: true
datasets:
- accession: CryoETDataPortal:10155
title: Bdellovibrio attack-phase
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86 changes: 86 additions & 0 deletions data/structures/cytoskeleton/mreb_filament.yaml
Original file line number Diff line number Diff line change
Expand Up @@ -84,6 +84,84 @@ evidence:
- reference: DOI:10.1016/j.cell.2018.02.050
notes: 'Shi H, Bratton BP, Gitai Z, Huang KC 2018, ''How to Build a Bacterial Cell:
MreB as the Foreman of E. coli Construction'', Cell.'
causal_graphs:
- graph_id: filament_guided_sidewall_synthesis
title: MreB and RodZ orient sidewall synthesis to preserve a rod
description: MreB subunits form membrane-associated filaments that RodZ couples
to the elongasome. Those filaments orient circumferential sidewall peptidoglycan
synthesis, and the resulting feedback keeps rod-shaped cells from widening into
spheres.
graph_kind: FUNCTION
scope_status: MECHANISTIC
nodes:
- node_id: mreb
label: MreB
node_type: GENE_OR_PROTEIN
component_ref: mreb
- node_id: mreb_filament
label: MreB filament
node_type: STRUCTURE
grounding: cellstructuremech:mreb_filament
- node_id: rodz
label: RodZ
node_type: GENE_OR_PROTEIN
component_ref: elongasome_link
- node_id: elongasome
label: elongasome
node_type: STRUCTURE
grounding: cellstructuremech:elongasome
- node_id: sidewall_synthesis
label: peptidoglycan biosynthetic process
node_type: BIOLOGICAL_PROCESS
grounding: GO:0009252
- node_id: rod_shape
label: rod shaped
node_type: TRAIT
grounding: METPO:1000681
edges:
- subject: mreb
predicate: polymerizes into
object: mreb_filament
description: MreB monomers assemble into short membrane-bound filaments.
evidence:
- reference: DOI:10.1016/j.cell.2018.02.050
notes: Shi, Bratton, Gitai and Huang 2018 review E. coli MreB filament architecture
and membrane association.
- subject: rodz
predicate: couples
object: elongasome
description: RodZ bridges MreB filaments to the cell-wall synthesis machinery.
evidence:
- reference: DOI:10.1016/j.cell.2018.02.050
notes: Shi, Bratton, Gitai and Huang 2018 review cytoplasmic RodZ-MreB binding
and periplasmic RodZ contacts with wall-synthesis enzymes.
- subject: mreb_filament
predicate: orients
object: elongasome
description: Curvature-biased filaments constrain where and in which direction
the Rod complex inserts new wall.
evidence:
- reference: DOI:10.1016/j.cell.2018.02.050
notes: Shi, Bratton, Gitai and Huang 2018 describe MreB as a curvature sensor
that both detects and changes local shape.
- subject: elongasome
predicate: carries out
object: sidewall_synthesis
description: The elongasome is the RodA/PBP2 peptidoglycan synthase complex that
builds the cylindrical sidewall.
evidence:
- reference: DOI:10.1038/nrmicro2677
notes: Typas, Banzhaf, Gross and Vollmer 2011 review the elongation complex
that builds sidewall peptidoglycan.
- subject: sidewall_synthesis
predicate: maintains
object: rod_shape
description: Circumferential sidewall insertion elongates the cylinder and maintains
rod-like shape.
evidence:
- reference: DOI:10.1016/j.cell.2018.02.050
notes: Shi, Bratton, Gitai and Huang 2018 describe MreB-driven cell-wall feedback
as the self-organizing system for rod shape maintenance.
discussions:
- discussion_id: first_minted_identifier
prompt: This is the corpus's first minted identifier — is the scheme right?
Expand Down Expand Up @@ -168,6 +246,14 @@ curation_history:
cell-shape claim it was attached to. The paper remains cited elsewhere on this
record, and the three verbatim snippets are unaffected.'
llm_assisted: true
- timestamp: '2026-09-04T00:58:09Z'
curator: codex
action: ADD_CAUSAL_GRAPH
changes: Added a FUNCTION graph for MreB/RodZ-guided sidewall synthesis that points
at the separate elongasome record, cites the existing MreB shape review and the
elongasome's sidewall-synthesis review, and keeps the filament-to-machine relation
out of equivalence-only xrefs.
llm_assisted: true
associated_traits:
- trait_id: METPO:1000681
trait_label: rod shaped
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23 changes: 23 additions & 0 deletions data/structures/division_machinery/divisome_complex.yaml
Original file line number Diff line number Diff line change
Expand Up @@ -123,6 +123,9 @@ causal_graphs:
- node_id: ring
label: FtsZ ring
node_type: STRUCTURE
- node_id: treadmilling
label: FtsZ treadmilling
node_type: BIOLOGICAL_PROCESS
- node_id: synthase
label: FtsW-FtsI septal synthase
node_type: GENE_OR_PROTEIN
Expand All @@ -135,15 +138,27 @@ causal_graphs:
- subject: tether
predicate: anchors
object: ftsz
description: FtsA, ZipA or SepF-family membrane tethers attach FtsZ protofilaments
to the cytoplasmic membrane at the division site.
evidence:
- reference: DOI:10.1146/annurev-biophys-121219-081703
notes: 'McQuillen & Xiao 2020: FtsA and ZipA hold FtsZ filaments at the membrane.'
- subject: ftsz
predicate: assembles into
object: ring
description: Membrane-tethered FtsZ filaments polymerize into the cytokinetic
Z ring at midcell.
evidence:
- reference: DOI:10.1146/annurev-biophys-121219-081703
notes: McQuillen & Xiao 2020 describe filament assembly into the Z ring at midcell.
- subject: ftsz
predicate: treadmills within
object: ring
description: Dynamic FtsZ filaments treadmill around the circumference of the
ring.
evidence:
- reference: DOI:10.1146/annurev-biophys-121219-081703
notes: McQuillen & Xiao 2020 review FtsZ treadmilling around the division site.
- subject: ring
predicate: distributes
object: synthase
Expand All @@ -156,6 +171,8 @@ causal_graphs:
- subject: synthase
predicate: carries out
object: septum
description: FtsW-FtsI enzymes synthesize the septal peptidoglycan that closes
the division plane.
evidence:
- reference: DOI:10.1146/annurev-biophys-121219-081703
notes: 'McQuillen & Xiao 2020: FtsW-FtsI builds the septal peptidoglycan.'
Expand Down Expand Up @@ -214,6 +231,12 @@ curation_history:
vitro EM studies ( 93 , 183 )'' -- inventing reference numbers a reader could
have chased. `just evidence-verify` refused all four before they could be committed.'
llm_assisted: true
- timestamp: '2026-09-04T01:38:58Z'
curator: codex
action: ENHANCE_CAUSAL_GRAPH
changes: Added an explicit FtsZ treadmilling node and descriptions to the divisome
graph so its septal-synthase distribution mechanism is fully represented.
llm_assisted: true
- timestamp: '2026-09-03T00:10:07Z'
curator: claude
action: CORRECT_UNIT
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Original file line number Diff line number Diff line change
Expand Up @@ -173,6 +173,8 @@ causal_graphs:
- subject: pmf
predicate: drives ion flow through
object: a
description: The proton motive force drives ions through offset half-channels
in subunit a at the a/c-ring interface.
evidence:
- reference: DOI:10.1146/annurev-biochem-013118-110903
notes: 'Kuehlbrandt 2019: ions cross via the two offset half-channels in subunit
Expand All @@ -189,12 +191,16 @@ causal_graphs:
- subject: cring
predicate: rotates
object: stalk
description: Ion-driven rotation of the membrane c-ring carries the attached central
stalk as one rotor.
evidence:
- reference: DOI:10.1146/annurev-biochem-013118-110903
notes: 'Kuehlbrandt 2019: the c-ring and central stalk rotate as one rotor.'
- subject: stalk
predicate: drives conformational cycling of
object: head
description: The asymmetric rotating central stalk forces catalytic beta subunits
in the alpha3beta3 head through sequential conformations.
evidence:
- reference: DOI:10.1146/annurev-biochem-013118-110903
notes: Kuehlbrandt 2019 describes the asymmetric gamma subunit imposing the
Expand All @@ -203,13 +209,17 @@ causal_graphs:
predicate: catalyses formation of
object: atp
predicate_id: RO:0002327
description: Catalytic nucleotide-binding interfaces in the F1 head synthesize
ATP from ADP and phosphate.
evidence:
- reference: DOI:10.1146/annurev-biochem-013118-110903
notes: 'Kuehlbrandt 2019: ATP is synthesised at the catalytic interfaces of
the head.'
- subject: head
predicate: participates in
object: synthesis
description: The F1 head is the catalytic sector of the proton-motive-force-driven
ATP synthase.
evidence:
- reference: DOI:10.1146/annurev-biochem-013118-110903
notes: Kuehlbrandt 2019 reviews rotary catalysis as the mechanism of ATP synthesis.
Expand Down Expand Up @@ -250,6 +260,12 @@ curation_history:
and polymer-entity links, and left alternate assembly stoichiometries unflattened
at RCSB. No molecular render was ingested.
llm_assisted: true
- timestamp: '2026-09-04T01:40:08Z'
curator: codex
action: ENHANCE_CAUSAL_GRAPH
changes: Added descriptions to ATP synthase rotary-catalysis edges so every edge
states the ion-flow, rotor, or catalytic step it represents.
llm_assisted: true
datasets:
- accession: PDB:6OQR
title: E. coli ATP Synthase ADP State 1a
Expand Down
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