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Updated: Mar 24, 2026

Live-cell Measurement of Odorant Receptor Activation Using a Real-time cAMP Assay
Published on: October 2, 2017
Olfactory receptor signaling
Gabriela Antunes1, Fabio Marques Simoes de Souza2
1Laboratory of Neural Systems (SisNE), Department of Physics, Faculdade de Filosofia Ciências e Letras de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, Brazil.
This chapter provides an overview of olfactory receptor signaling, detailing recent advances in understanding how the sense of smell functions at a molecular level. It covers the large family of odorant receptors (ORs) involved in scent detection.
Area of Science:
- Molecular Biology
- Neuroscience
- Biochemistry
Background:
- G protein-coupled receptors (GPCRs) are the largest membrane protein family in the human genome.
- Odorant receptors (ORs) constitute over half of all GPCRs and are crucial for olfaction.
- Nobel laureates Buck and Axel laid the groundwork for understanding odor recognition mechanisms.
Purpose of the Study:
- To provide a comprehensive overview of olfactory receptor signaling pathways.
- To review recent scientific advancements in the field of olfaction.
- To consolidate current knowledge on the molecular basis of smell.
Main Methods:
- Literature review of olfactory receptor signaling.
- Analysis of recent research on odorant receptor function.
- Synthesis of findings on the molecular mechanisms of smell.
Main Results:
- Significant progress has been made in unraveling the complexities of the sense of smell.
- The chapter highlights key discoveries in olfactory receptor signaling.
- Recent advances expand our understanding of odor recognition.
Conclusions:
- Olfactory receptor signaling is a complex and dynamic field of study.
- Continued research is essential for a complete understanding of olfaction.
- This review consolidates current knowledge and points to future directions.
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