title: Cloning and characterization of the N-methyl-D-aspartate receptor subunit NR1 gene from chum salmon, Oncorhynchus keta (Walbaum, 1792).
abstract: Here, we report the information about molecular and expression characterization of NR1 gene in chum salmon for the first time. The complete NR1 subunit showed a large open-reading frame of 2844 bp in the total length of 3193 bp, and this cDNA contained a coding region encoding 948 amino acids and a stop codon. The organization of the NR1 subunit of chum salmon were similar of most other fishes, except C' terminal. The expression of NR1 subunit was to show higher in the natal river near to the hatchery than near to the coast. We expect that the information reported herein may facilitate further investigations on the relationship between memory factors of natal rivers and homing mechanisms in Salmonidae.
authors.affiliation: National Institute of Biological Resources, Environmental Research Complex, Incheon, 404-708 Korea.
authors.forename: Jeong-Nam
authors.initials: JN
authors.lastname: Yu
authors.affiliation: Department of Marine Molecular Biotechnology, Gangneung-Wonju National University, Gangneung, 210-702 Korea.
authors.forename: Seung Hyub
authors.initials: SH
authors.lastname: Ham
authors.affiliation: Department of Marine Molecular Biotechnology, Gangneung-Wonju National University, Gangneung, 210-702 Korea.
authors.forename: Seung Il
authors.initials: SI
authors.lastname: Lee
authors.affiliation: Department of Marine Molecular Biotechnology, Gangneung-Wonju National University, Gangneung, 210-702 Korea.
authors.forename: Hyung-Joo
authors.initials: HJ
authors.lastname: Jin
authors.affiliation: Laboratory of Aquatic Bioresources and Ecosystem, Field Science Center for Northern Biosphere, Hokkaido University, North 9, West 9, Kita-ku, Sapporo, 060-0809 Japan.
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Ueda
authors.affiliation: Department of Marine Molecular Biotechnology, Gangneung-Wonju National University, Gangneung, 210-702 Korea.
authors.forename: Deuk-Hee
authors.initials: DH
authors.lastname: Jin
keywords: N-methyl-D-aspartate receptors; NR1 gene; Olfactory; Oncorhynchus