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Renaming the 'OS-D/CSP' Family (Part 1): '4-Cysteine Soluble Proteins' (4CSPs)-Molecular Nomenclature, Structure,
Guoxia Liu1, Botong Sun2,3, Wei Fan2
1Shandong Academy of Agricultural Sciences, Jinan 250100, China.
The study proposes renaming chemosensory proteins (CSPs) to 4-cysteine soluble proteins (4CSPs). This reflects their diverse roles beyond olfaction, supported by genomic and tissue distribution data.
Area of Science:
- Biochemistry
- Genomics
- Molecular Biology
Background:
- Chemosensory proteins (CSPs) traditionally bind odorants in sensory organs.
- CSPs are increasingly found in non-olfactory tissues, suggesting broader functions.
Purpose of the Study:
- To propose renaming chemosensory proteins (CSPs) to 4-cysteine soluble proteins (4CSPs).
- To support this nomenclature shift based on molecular, genomic, and functional evidence beyond olfaction.
Main Methods:
- Review of existing literature on CSP gene family.
- Genomic mining and analysis of tissue distribution data.
- Evaluation of functional roles beyond olfactory signaling.
Main Results:
- CSPs exhibit pleiotropic properties and are expressed in numerous non-sensory tissues.
- Evidence supports diverse functions unrelated to smell, challenging the traditional CSP paradigm.
- Data on non-chemosensory roles of 4CSPs are abundant, while direct olfactory roles are less clear.
Conclusions:
- The diverse expression patterns and functions of CSPs warrant a nomenclature change.
- Renaming to 4-cysteine soluble proteins (4CSPs) better reflects their established pleiotropic nature.
- This shift acknowledges evolutionary relevance and broader biological roles beyond olfaction.
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