한빛사 논문
Abstract
Ju-Won Kim, Ja Young Cho, Julan Kim, Dong-Gyun Kim, Bo-Hye Nam, Young-Ok Kim, Cheul Min An, Bong-Seok Kim, Jung Youn Park, Hee Jeong Kong*
Biotechnology Research Division, National Institute of Fisheries Science, Busan, 46083, Republic of Korea
*Corresponding author : Hee Jeong Kong
Abstract
We isolated and characterised a cDNA encoding the aspartic protease cathepsin E (CTSE) in Korean rose bitterling, Rhodeus uyekii. The full-length Rhodeus uyekii CTSE (RuCTSE) cDNA (1396 bp) contains an open reading frame of 1218 bp, encoding 405 amino acids. Alignment of multiple CTSE protein sequences revealed that two of the aspartyl protease active site residues and a disulphide bond were well-conserved among the other CTSE sequences. Phylogenetic analysis revealed that RuCTSE is most closely related to freshwater fish cathepsin E. RuCTSE is widely expressed in the liver, spleen, ovary, testis, brain, eye, intestine, muscle, fin, stomach, and kidney. This first report of teleost CTSE will provide important information related to the identification of other cathepsin E genes in various fish species and will serve as a useful molecular tool to help clarify biological activities in other teleosts.
Keywords : Cathepsin E; Korean rose bitterling; Molecular characterisation
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