OR5A2 Olfactory Receptor Screening for Safer Musk Compounds
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Solution Overview
Problem
Existing technologies lack effective methods for identifying and developing safe, ecologically benign musk compounds that can activate, mimic, block, inhibit, or enhance the activity of olfactory receptors, particularly OR5A2, which are crucial for musk perception in perfumery and fragrance industries.
Innovation Solution
Identification of OR5A2, a class 2 olfactory receptor, and its interaction with structurally diverse musk groups, enabling the development of screening assays to find agents that modulate its activity, using chimeric receptors and functional assays to measure signaling activity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If synthetic musk compounds are used to achieve musk fragrance, then the desired fragrance effect is obtained, but health and environmental harm increases
Solution Approach 1:
The patent changes the chemical parameters of musk compounds by identifying and characterizing OR5A2 receptor specificity, enabling the selection of musk compounds that activate this receptor while potentially avoiding harmful synthetic musks. This parameter change allows fragrance production to maintain effectiveness while reducing health and environmental harm.
Solution Approach 2:
The patent creates a functional copy of natural musk perception by identifying the OR5A2 receptor and its ligands, allowing synthetic compounds to mimic natural musk fragrance without using harmful traditional synthetic musks. This copying approach enables fragrance production to achieve desired effects while avoiding harmful substances.
2Illumination intensity
If traditional musk compounds are used, then strong musk fragrance is achieved, but ecological damage increases
Solution Approach 1:
The patent changes the ecological parameter by identifying OR5A2 receptor-specific musk compounds that can achieve strong fragrance intensity without the ecological damage associated with traditional musks like musk ketone and musk xylene. This allows maintaining fragrance intensity while reducing ecological harm.
Solution Approach 2:
The patent converts the harmful ecological impact of traditional musks into a benefit by identifying alternative compounds that activate OR5A2 receptor. This allows the fragrance industry to eliminate harmful musks while maintaining or enhancing musk fragrance effects, turning an ecological problem into a solution.
3Reliability
If OR5A2 receptor screening assays are developed, then identification of safe musk compounds is enabled, but research and development complexity increases
Solution Approach 1:
The patent performs preliminary action by fully characterizing the OR5A2 receptor and establishing screening assays before the actual identification of safe musk compounds. This preliminary work on receptor characterization and assay development simplifies subsequent compound screening and ensures reliable identification of safe musk compounds.
Solution Approach 2:
The patent creates a universal screening platform based on OR5A2 receptor that can be used to identify multiple safe musk compounds with different chemical structures. This multi-functional assay system allows the identification of various safe alternatives to traditional musks, reducing overall R&D complexity through a standardized approach.
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
Enables the discovery of safer, environmentally friendly musk compounds that can activate or enhance musk perception, addressing health and environmental concerns associated with existing synthetic musks.
Implementation Method 1
These ORs belong to the superfamily of G protein coupled receptors (GPCRs). GPCRs are membrane receptors usually located at the surface of many different cell types. The common features of these receptors consist in seven transmembrane spans that form a barrel within the cell membrane and in their capacity to interact with heterotrimeric GTPase and thereby transducing a signal upon binding of their activators.
Implementation Method 2
In OSN, triggering of the OR promotes the activation of an olfactory-specific G protein (Galpha-olf) that stimulates a type III adenylate cyclase to produce cyclic AMP; this plays the role of a second messenger. Upon binding to a cAMP-gated cation channel, this messenger induces the entry of calcium into the cell. Calcium causes the opening of another channel that promotes the exit of chloride ions, and hence triggers an action potential of the neuron leading to a signal to the respective brain area.
Data Source
AI summary
Identification of OR5A2 as an Olfactory Receptor that binds natural musk and synthetic musks and using the interaction of OR5A2 polypeptides and nitromusk, polycyclic musk, macrocyclic musk and alicyclic musks as a basis of screening assays for agents that specifically modulate the activity of the Olfactory Receptor.