Abstract
Adipose triglyceride lipase (ATGL) was recently identified as a triglyceride (TG)-specific lipase. In this study, we first obtained from large yellow croaker fish a 1,820-bp (GenBank ID: HQ916211) ATGL cDNA fragment with a 141-bp 5′UTR, a 1,485-bp open reading frame, and a 194-bp 3′UTR. The predicted fish ATGL had 494 amino acids (GenBank ID: ADY89608) and a calculated molecular weight of 55.1 kDa. ATGL was highly expressed in liver and, to a lesser degree, in heart, muscle, and abdominal fat. ATGL gene expression was high at 4.5 g and then decreased at 157.9 g and increased again at 474.2 g. The effects of lipid levels and lipid sources on ATGL expression in vivo were also investigated. A high-lipid diet decreased ATGL expression in fish significantly (P < 0.01). Fish in soybean oil group exhibited significantly lower ATGL expression than fish in the fish oil and beef tallow groups (P < 0.01). These data enhance our understanding of ATGL in fish lipid metabolism.
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Abbreviations
- ATGL:
-
Adipose triglyceride lipase
- RACE:
-
Rapid amplification of cDNA ends
- TG:
-
Triglyceride
- DG:
-
Diglyceride
- MUFA:
-
Monounsaturated fatty acid
- SGR:
-
Specific growth rate
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This work was supported by grants from the National Natural Science Foundation of China (NSFC, grant # 30901104) and the China Postdoctoral Science Foundation (grant # 2009046138).
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Wang, X., Wang, Y. & Li, Y. Adipose Triglyceride Lipase (ATGL) Clone, Expression Pattern, and Regulation by Different Lipid Sources and Lipid Levels in Large Yellow Croaker (Pseudosciaena crocea R.). Mar Biotechnol 15, 197–205 (2013). https://doi.org/10.1007/s10126-012-9477-9
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DOI: https://doi.org/10.1007/s10126-012-9477-9