Source 1primary paper2023McGill Science Undergraduate Research Journal
Toolkit/hypoxanthine switch
hypoxanthine switch
Taxonomy: Mechanism Branch / Component. Workflows sit above the mechanism and technique branches rather than replacing them.
Summary
The hypoxanthine switch is a small molecule-responsive RNA element described as a hypoxanthine-sensitive switch. Available evidence indicates that its intracellular switch activity correlates with aptamer binding properties measured biochemically.
Usefulness & Problems
Why this is useful
This RNA element is useful as a chemically responsive gene-control component because its cellular switching behavior is linked to measurable aptamer binding properties. The cited evidence also indicates that its specificity was examined against chemical structure and classification.
Problem solved
The hypoxanthine switch helps address the problem of coupling intracellular gene regulation to the presence of a defined small molecule, hypoxanthine. The available evidence specifically supports evaluation of how biochemical aptamer binding relates to intracellular switch performance.
Taxonomy & Function
Primary hierarchy
Mechanism Branch
Component: A low-level RNA part used inside a larger architecture that realizes a mechanism.
Techniques
No technique tags yet.
Target processes
No target processes tagged yet.
Input: Chemical
Implementation Constraints
cofactor dependency: cofactor requirement unknownencoding mode: genetically encodedimplementation constraint: context specific validationoperating role: actuator
The available evidence supports classifying this tool as an RNA aptazyme-based switch responsive to the small molecule hypoxanthine. No specific construct design, expression context, cofactor requirement, or delivery method is described in the supplied evidence.
The provided evidence does not report quantitative performance metrics, dynamic range, response kinetics, host system, or downstream gene-control architecture. Independent replication and broad validation across contexts are not established by the supplied source set.
Validation
Cell-freeBacteriaMammalianMouseHumanTherapeuticIndep. Replication
Supporting Sources
Ranked Claims
For the hypoxanthine switch, intracellular switch activity correlated with aptamer binding properties measured biochemically.
the specificity testing demonstrated switch activity inside the cell correlated to the aptamer binding properties that were measured biochemically
For the hypoxanthine switch, intracellular switch activity correlated with aptamer binding properties measured biochemically.
the specificity testing demonstrated switch activity inside the cell correlated to the aptamer binding properties that were measured biochemically
For the hypoxanthine switch, intracellular switch activity correlated with aptamer binding properties measured biochemically.
the specificity testing demonstrated switch activity inside the cell correlated to the aptamer binding properties that were measured biochemically
For the hypoxanthine switch, intracellular switch activity correlated with aptamer binding properties measured biochemically.
the specificity testing demonstrated switch activity inside the cell correlated to the aptamer binding properties that were measured biochemically
For the hypoxanthine switch, intracellular switch activity correlated with aptamer binding properties measured biochemically.
the specificity testing demonstrated switch activity inside the cell correlated to the aptamer binding properties that were measured biochemically
For the hypoxanthine switch, intracellular switch activity correlated with aptamer binding properties measured biochemically.
the specificity testing demonstrated switch activity inside the cell correlated to the aptamer binding properties that were measured biochemically
For the hypoxanthine switch, intracellular switch activity correlated with aptamer binding properties measured biochemically.
the specificity testing demonstrated switch activity inside the cell correlated to the aptamer binding properties that were measured biochemically
For the hypoxanthine switch, intracellular switch activity correlated with aptamer binding properties measured biochemically.
the specificity testing demonstrated switch activity inside the cell correlated to the aptamer binding properties that were measured biochemically
For the hypoxanthine switch, intracellular switch activity correlated with aptamer binding properties measured biochemically.
the specificity testing demonstrated switch activity inside the cell correlated to the aptamer binding properties that were measured biochemically
For the hypoxanthine switch, intracellular switch activity correlated with aptamer binding properties measured biochemically.
the specificity testing demonstrated switch activity inside the cell correlated to the aptamer binding properties that were measured biochemically
For the hypoxanthine switch, intracellular switch activity correlated with aptamer binding properties measured biochemically.
the specificity testing demonstrated switch activity inside the cell correlated to the aptamer binding properties that were measured biochemically
For the hypoxanthine switch, intracellular switch activity correlated with aptamer binding properties measured biochemically.
the specificity testing demonstrated switch activity inside the cell correlated to the aptamer binding properties that were measured biochemically
For the hypoxanthine switch, intracellular switch activity correlated with aptamer binding properties measured biochemically.
the specificity testing demonstrated switch activity inside the cell correlated to the aptamer binding properties that were measured biochemically
For the hypoxanthine switch, intracellular switch activity correlated with aptamer binding properties measured biochemically.
the specificity testing demonstrated switch activity inside the cell correlated to the aptamer binding properties that were measured biochemically
For the hypoxanthine switch, intracellular switch activity correlated with aptamer binding properties measured biochemically.
the specificity testing demonstrated switch activity inside the cell correlated to the aptamer binding properties that were measured biochemically
For the hypoxanthine switch, intracellular switch activity correlated with aptamer binding properties measured biochemically.
the specificity testing demonstrated switch activity inside the cell correlated to the aptamer binding properties that were measured biochemically
For the hypoxanthine switch, intracellular switch activity correlated with aptamer binding properties measured biochemically.
the specificity testing demonstrated switch activity inside the cell correlated to the aptamer binding properties that were measured biochemically
Approval Evidence
1 source1 linked approval claimfirst-pass slug hypoxanthine-switch
Finally, the specificity of the hypoxanthine switch was tested based on chemical structure and classification.
Source:
specificity correlationsupports
For the hypoxanthine switch, intracellular switch activity correlated with aptamer binding properties measured biochemically.
the specificity testing demonstrated switch activity inside the cell correlated to the aptamer binding properties that were measured biochemically
Source:
Comparisons
Source-backed strengths
A reported strength is the observed correlation between intracellular switch activity and aptamer binding properties measured biochemically. The source also states that specificity of the hypoxanthine switch was tested based on chemical structure and classification.
Compared with aptazyme-embedded guide RNAs
hypoxanthine switch and aptazyme-embedded guide RNAs address a similar problem space.
Shared frame: same top-level item type; same primary input modality: chemical
Compared with bacterial degrons
hypoxanthine switch and bacterial degrons address a similar problem space.
Shared frame: same primary input modality: chemical
Compared with ligand-activated and ligand-deactivated sgRNAs
hypoxanthine switch and ligand-activated and ligand-deactivated sgRNAs address a similar problem space.
Shared frame: same top-level item type; same primary input modality: chemical
Relative tradeoffs: appears more independently replicated; looks easier to implement in practice.
Ranked Citations
- 1.