Molecular cloning, expression, and functional analysis of caspase-10 from Japanese flounder Paralichthys olivaceus.
We isolated and sequenced caspase-10 cDNA and gene from Japanese flounder, Paralichthys olivaceus. The Japanese flounder (JF)-caspase-10 cDNA consisted of 2282 bp and encoded 495 amino acid residues. The characteristic death effector domains (DEDs) of caspases were observed in JF-caspase-10 as well as the three aspartic acid residues (D-186, -382 and -392), which are potential cleavage sites for the large and small subunit structures. The amino acid residue (His-325) and pentapeptide (QACQG), which are involved in catalytic activity, were absolutely conserved in Japanese flounder-caspase-10. JF-caspase-10 gene has a length of 6.6 kb and consists of 11 exons and 10 introns similar to that of human. The strong expression of JF-caspase-10 mRNA was detected in the gills, peripheral blood leukocytes, spleen and posterior kidney, while the weak expression was observed in the head kidney, heart, intestine, skin and stomach. The over-expression analysis of JF-caspase-10 in Japanese flounder cell line HINAE was shown to induce apoptosis 24h post-transfection using TUNEL assay.
Kurobe
Tomofumi
T
Laboratory of Genome Science, Graduate School of Marine Science and Technology, Tokyo University of Marine Science and Technology, Konan 4-5-7, Minato, Tokyo 108-8477, Japan.
Hirono
Ikuo
I
Kondo
Hidehiro
H
Yamashita
Michiaki
M
Aoki
Takashi
T
D000595:Amino Acid Sequence; D000818:Animals; D053455:Caspase 10 / Q000737:chemistry / Q000235:genetics*; D053222:Fas Ligand Protein / Q000378:metabolism; D005432:Flounder / Q000235:genetics* / Q000276:immunology*; D020869:Gene Expression Profiling / Q000662:veterinary; D015971:Gene Expression Regulation, Enzymologic / Q000276:immunology*; D023061:Gene Order; D008969:Molecular Sequence Data; D010802:Phylogeny; D016415:Sequence Alignment; D017386:Sequence Homology, Amino Acid
D053222:Fas Ligand Protein; D053455:Caspase 10