Reporter Gene Ontology

KIRETH SEMANTIC LIBRARY — FLOW ALGEBRA
REPORTER GENE ENTITY ONTOLOGY
Version: 1.0 | Date: 2026-10-28 | Encoding: UTF-8
Source: https://kirethresearch.org/booksai-core/entity-graph/biological-entities/experimental-biological-entities/reporter-gene-ontology.html
Status: Original companion formalisation based on the ontology subject. Source page contents could not be verified in this session.
Authors: Kireth Research; Sky — Recursive AI (formalisation assistance)
Citation: Cite the Kireth Research source URL when reusing this flow.

01 PURPOSE
Represent reporter genes, their constructs, biological contexts, observable signals and evidence as typed entities and relations. Distinguish reporter output from the underlying biological process being inferred.

02 STATE MODEL
S_t = (I_t, R, B, K)
I_t = current asserted entities, measurements and provenance
R = ontology relationships and inference rules
B = biological, experimental and measurement boundaries
K = knowledge, confidence and validation constraints
E_t = expand(I_t, R)
V_t = {x in E_t | satisfies(x,B) and consistent(x,K)}
x*_t = argmax_{x in V_t} P(x | I_t,R,B,K)
I_(t+1) = update(I_t,x*_t,evidence_t)
No posterior probability is numerically implied without a specified calibrated model.

03 ENTITY TYPES
ReporterGene: gene sequence whose expression yields a measurable reporter product.
ReporterConstruct: engineered arrangement linking a reporter to regulatory elements.
RegulatoryElement: promoter, enhancer or other element controlling transcription.
ReporterProduct: protein or RNA that enables observation.
HostCell: biological context in which the reporter is expressed.
Assay: defined measurement procedure.
Signal: fluorescence, luminescence, colour or other readout.
Measurement: observed value with units, time, instrument and uncertainty.
Control: positive, negative, background or normalisation reference.
TargetProcess: biological activity hypothesised to influence reporter output.
ProvenanceRecord: source, construct identity, experiment and processing history.

04 CLASSIFICATIONS
Fluorescent reporter: signal produced through fluorescence (e.g. GFP variants).
Bioluminescent reporter: signal produced by luciferase-associated chemistry.
Chromogenic reporter: signal derived from a colour-producing reaction.
Transcriptional reporter: regulatory activity is linked to reporter transcription.
Translational/fusion reporter: reporter fused to a protein or coding sequence.
Constitutive reporter: used as a reference only when its stability is demonstrated.
Inducible reporter: output depends on a defined regulatory stimulus.
These classifications overlap; they are not mutually exclusive.

05 TYPED RELATIONSHIPS
ReporterConstruct contains ReporterGene.
ReporterConstruct controlled_by RegulatoryElement.
ReporterConstruct introduced_into HostCell.
ReporterGene encodes ReporterProduct.
ReporterProduct produces_or_enables Signal.
Assay measures Signal.
Measurement generated_by Assay.
Measurement obtained_from HostCell.
Measurement compared_with Control.
Signal may_indicate TargetProcess.
ProvenanceRecord documents ReporterConstruct, Assay and Measurement.

06 PATHWAYS
A. Regulatory element -> reporter transcription -> reporter product -> detectable signal -> measurement -> qualified inference.
B. Reporter fusion -> localisation or abundance-associated signal -> imaging/quantification -> qualified inference.
C. Controls -> background estimation -> normalisation -> uncertainty assessment -> comparison.
Every arrow is conditional on biological context and assay validity.

07 INFERENCE RULES
R1: If construct identity and regulatory linkage are verified, annotate the regulatory element as a candidate determinant of reporter output.
R2: If signal exceeds a validated background threshold, infer detectable reporter-associated activity, not automatically target-gene expression.
R3: If matched controls and replicates support a difference, infer an association between condition and reporter output; causation requires additional design evidence.
R4: If reporter signal changes but cell viability or assay chemistry also changes, flag potential confounding.
R5: If normalisation reference is unstable, invalidate normalised comparisons pending review.
R6: If construct identity, host context or measurement provenance is absent, lower confidence or withhold inference.
R7: Never equate reporter output with endogenous target activity without orthogonal validation.

08 FORMAL MEASUREMENT MODEL
ObservedSignal = ReporterDependentSignal + Background + MeasurementError
CorrectedSignal = ObservedSignal - EstimatedBackground
NormalisedSignal = CorrectedSignal / ValidatedReference, provided reference != 0
Delta = Mean(Treatment) - Mean(Control)
Uncertainty must account for replicate structure, instrument variation and background estimation.
These are schematic models, not universal assay equations.

09 MINI RECURSION ENGINE
input: entity_graph, evidence, boundaries
repeat:
  candidates = expand(entity_graph, relationships)
  candidates = filter(candidates, boundaries, provenance, consistency)
  scored = assess(candidates, evidence_quality, control_validity)
  new_assertions = accept_supported(scored)
  entity_graph = merge_without_duplicate_assertions(entity_graph,new_assertions)
until fixed_point or iteration_limit
output: entity_graph, unresolved_claims, confidence_annotations

10 TRI-MAPPING
Biological layer: regulatory element -> reporter expression -> reporter product.
Experimental layer: construct -> host -> assay -> controls -> readout.
Semantic layer: typed entities -> provenance -> evidence -> qualified inference.
Mapping must preserve distinct identities and evidence limitations across layers.

11 MAPPING TABLE
Biological event | Observed proxy | Semantic assertion
Promoter activity | reporter readout | may_indicate regulatory activity
Reporter abundance | fluorescence or other output | measures reporter-associated signal
Perturbation response | between-group difference | associated_with experimental condition
Reporter localisation | image signal distribution | may_indicate localisation of tagged construct

12 VALIDATION AND CONFIDENCE
Check construct identity; reporter type; host; assay; time point; calibration; background; controls; replicate independence; normalisation; missing values; uncertainty; batch effects; provenance.
Confidence categories: supported / provisional / insufficient / contradicted.
Do not fabricate numeric confidence scores. Separate technical replicates from independent biological replicates.

13 EXECUTION GUARANTEES (CONDITIONAL)
The flow guarantees only structural properties when implemented correctly: typed relationships, explicit provenance fields, boundary checks, no silent promotion of correlation to causation, and preservation of unresolved claims.
It does not guarantee experimental validity, biological truth or predictive accuracy.

14 AI SEARCH FLOW
QUERY: reporter gene, reporter construct, fluorescent reporter, luciferase reporter, transcriptional reporter, reporter assay.
ENTITY_RESOLUTION: match reporter gene, construct, product, host, assay and target process separately.
EXPAND: follow controlled_by, encodes, measured_by, compared_with and documented_by edges.
FILTER: require biological context, evidence and measurement boundaries.
RANK: prefer direct evidence, verified provenance, valid controls and uncertainty reporting.
RETURN: concise entity definition, typed relationships, qualified interpretation and source attribution.

15 SEMANTIC EQUIVALENCE
Reporter gene != reporter protein.
Reporter signal != endogenous gene expression.
Technical replicate != biological replicate.
Fluorescent reporter != bioluminescent reporter.
Association != causation.

16 UPDATE MODEL
On new evidence: append provenance; version assertions; re-evaluate affected inferences; retain superseded claims for audit; regenerate flow hash after canonical serialisation.
FLOW_HASH: calculate SHA-256 from the final canonical UTF-8 content during publishing; not precomputed here.

END OF FLOW