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Cloning and characterization of an odorant receptor in five Pacific salmon

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Title: Cloning and characterization of an odorant receptor in five Pacific salmon
Authors: Morinishi, Fumi Browse this author
Shiga, Takumi Browse this author
Suzuki, Norio Browse this author
Ueda, Hiroshi Browse this author →KAKEN DB
Keywords: odorant receptor
olfactory epithelium
olfactory hypothesis
Issue Date: Nov-2007
Publisher: Elsevier
Journal Title: Comparative Biochemistry and Physiology. Part B, Biochemistry and Molecular Biology
Volume: 148
Issue: 3
Start Page: 329
End Page: 336
Publisher DOI: 10.1016/j.cbpb.2007.06.010
PMID: 17652000
Abstract: The olfactory system of fish is extremely important as it is able to recognize and distinguish a vast of odorous molecules that are involved in wide ranges of behaviors including reproduction, homing, kin recognition, feeding and predator avoidance; all of which are paramount for their survival. We cloned and characterized one type olfactory receptors (ORs) from five salmonids: lacustrine sockeye salmon (Oncorhynchus nerka), pink salmon (O. gorbuscha), chum salmon (O. keta), masu salmon (O. masou) and rainbow trout (O. mykiss). Lacustrine sockeye salmon olfactory receptor 1 (LSSOR1) showed high sequence homology to the OR subfamily, and was expressed only in the olfactory epithelium (as indicated by PCR amplified genomic DNA and cDNA). OR genes from the five salmonids examined all showed strong homology (96-99%) to each other. Hypervariable regions, believed to be ligand-binding pockets, showed homologous completely matched amino acid sequences except for one amino acid in pink salmon olfactory receptor 1 (PSOR1), revealing that these ORs may be well conserved among salmon species. These results suggest that the isolated 5 salmonid ORs might play an important role in salmon life cycles.
Type: article (author version)
Appears in Collections:北方生物圏フィールド科学センター (Field Science Center for Northern Biosphere) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 上田 宏

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