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Receptor diversity and spatial patterning in the mammalian olfactory system
1Department of Neurobiology, Harvard Medical School, Boston, MA 02115.
Ciba Foundation Symposium
|January 1, 1993
Summary
Researchers identified a novel multigene family encoding odorant receptors, crucial for mammalian olfactory perception. Their diverse expression in olfactory epithelium zones suggests a topographical organization of smell information.
Area of Science:
- Neuroscience
- Molecular Biology
- Sensory Systems
Background:
- Olfactory perception relies on odorant receptors (ORs) on olfactory sensory neurons.
- Understanding ORs is key to deciphering mammalian smell mechanisms.
Purpose of the Study:
- Identify and characterize novel odorant receptor genes.
- Investigate the organization of OR gene expression in the olfactory epithelium.
Main Methods:
- Gene identification and characterization.
- Analysis of odorant receptor RNA expression patterns.
Main Results:
- Discovery of a large, diverse multigene family encoding odorant receptors.
- Observation of distinct topographical expression zones for OR genes in the olfactory epithelium.
Conclusions:
- The vast diversity of ORs supports high olfactory acuity through differential binding.
- Topographical expression zones in the olfactory epithelium suggest an organized system for processing olfactory information.