Nanoluc Suicide Substrates for Selective Luciferase Signal Suppression
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Solution Overview
Problem
Existing technologies lack effective methods to selectively detect, label, or inhibit Oplophorus-derived luciferases, which are used in biological assays, due to their broad substrate specificity and high activity, making it difficult to control luminescent signals.
Innovation Solution
Development of compounds with specific functional groups that can selectively bind to Oplophorus-derived luciferases, allowing for labeling, detection, or inhibition through covalent tethering, including coelenterazine analogs with functional groups for irreversible inhibition.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If Oplophorus-derived luciferases are used as reporter molecules, then high activity and high quantum yield are achieved, but selective detection and control of luminescent signals become difficult
Solution Approach 1:
The patent introduces specific functional groups (such as fluorophores, phosphorescent dyes, or other detectable moieties) at particular positions on the coelenterazine molecule. This allows different parts of the molecule to have different functions: the core structure maintains high luciferase activity while the attached functional groups provide selective detection capabilities and signal control, resolving the contradiction between high power output and precise measurement control
Solution Approach 2:
The patent uses functional groups as intermediary elements that mediate between the luciferase enzyme and the detection system. These functional groups act as translators that convert the luminescent signal into detectable forms (fluorescence, phosphorescence, etc.) while allowing for selective detection and control, thus enabling precise measurement without compromising the high activity of the luciferase
2Measurement precision
If coelenterazine analogs with functional groups are used for labeling, then selective binding to luciferases is achieved, but compound complexity increases
Solution Approach 1:
The patent divides the labeling compound into distinct functional segments: a coelenterazine core structure that binds to the luciferase, and separate functional groups (such as fluorophores, phosphorescent dyes, or other detectable moieties) that provide detection capabilities. This segmentation allows each part to be optimized independently while maintaining overall functionality, reducing the complexity of designing and synthesizing the complete molecule
Solution Approach 2:
The patent creates multi-functional compounds where the coelenterazine core serves multiple purposes: it binds to the luciferase enzyme, maintains high quantum yield, and can be modified with various functional groups for different detection applications. This universality reduces the need for multiple separate compounds, simplifying the overall system while maintaining selective binding capabilities
3Object-affected harmful factors
If irreversible inhibition compounds are used to suppress luminescence, then background noise is reduced, but loss of luminescent signal occurs
Solution Approach 1:
The patent uses compounds that perform preliminary binding to the luciferase enzyme before irreversible inhibition occurs. These compounds can be designed to bind reversibly first, allowing for controlled suppression of background noise, and then proceed to irreversible inhibition only when necessary. This preliminary action allows for temporal control over when luminescence is suppressed, preventing loss of signal during the detection window
Solution Approach 2:
The patent employs compounds that can be activated periodically or in controlled cycles. For example, prodrugs that require metabolic activation or compounds that respond to specific environmental conditions can be used to suppress background noise only when needed, while maintaining luminescent signal during the detection period. This periodic action allows for selective suppression of harmful background signals without permanently losing the useful luminescent signal
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The compounds provide selective detection and inhibition of Oplophorus-derived luciferases, improving signal control and reducing background noise in assays by suppressing unwanted luminescence, enhancing the signal-to-noise ratio.
Implementation Method 1
covalent tethering
Implementation Method 2
Oplophorus-derived luciferases, which are used in biological assays
Implementation Method 3
coelenterazine analogs
Data Source
AI summary
Compounds that may inhibit Oplophorus-derived luciferases are disclosed as well as compositions and kits comprising the compounds and methods of using the compounds.