Bounded definition
A synthetic mutually repressive gene network with two experimentally switchable stable expression states.
What the cited work establishes
The study constructs a mutually repressive bistable gene circuit in Escherichia coli and reports switching under specified inducer and temperature conditions.
The constructs, biological systems, protocols, assays, datasets, and comparisons reported in Construction of a genetic toggle switch in Escherichia coli.
Claims: urn:maha:claim:genetic-toggle-switch
What remains a separate question
The circuit’s memory and stability cannot be transferred to other hosts, copy numbers, growth conditions, burdens, or timescales.
Behavior in one bacterial construct and environment does not establish stability, safety, or equivalent function in other hosts and contexts.
Connected domain graph
Typed dependencies preserve publication state.
Only independently canonical records receive public links and relation statements. Draft graph topology remains private.
Repressilator gene oscillator
outbound connection · concept
Toggle switches and repressilators are distinct dynamic circuit motifs with different state behavior.
Repressilator gene oscillator
inbound connection · concept
The oscillator and toggle are foundational but non-equivalent synthetic circuit motifs.
Cell-free gene expression systems
inbound connection · method
Circuit behavior in cell-free systems requires separate host-free characterization rather than transfer from living cells.
Claim ledger
Every proposition keeps its own evidence state.
The cited study constructs a bistable toggle in Escherichia coli and reports switching thresholds and state behavior under defined induction conditions.
- Scope
- The constructs, biological systems, protocols, assays, datasets, and comparisons reported in Construction of a genetic toggle switch in Escherichia coli.
- Boundary
- The circuit’s memory and stability cannot be transferred to other hosts, copy numbers, growth conditions, burdens, or timescales.
- Uncertainty
- There is no universal effect estimate for this method; numerical results remain attached to the source experiment, biological system, assay, and analysis choices.
- Replication
- This candidate records one bounded source package. Independent replications and contradictory results must be compiled separately before evidence maturity is upgraded.
Primary sources
Citation, locator, rights, and boundary travel together.
Source 1 · Nature
Construction of a genetic toggle switch in Escherichia coli
Timothy S. Gardner, Charles R. Cantor, James J. Collins
- Exact locator
- Abstract; Figures 1–6; mathematical model and experimental switching results.
- Establishes
- The study constructs a mutually repressive bistable gene circuit in Escherichia coli and reports switching under specified inducer and temperature conditions.
- Boundary
- Behavior in one bacterial construct and environment does not establish stability, safety, or equivalent function in other hosts and contexts.
- Rights basis
- citation with paraphrase · Maha paraphrases the source-level result and links to the version of record; no article passage is reproduced.