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http://dx.doi.org/10.5536/KJPS.2020.47.3.127

Cloning and Characterizing of the Quail Chibby Family Member 2 (CBY2) Gene in Quail Muscle Cells  

Lee, Inpyo (Department of Animal Science and Biotechnology, Kyungpook National University)
Shin, Sangsu (Department of Animal Science and Biotechnology, Kyungpook National University)
Publication Information
Korean Journal of Poultry Science / v.47, no.3, 2020 , pp. 127-133 More about this Journal
Abstract
Chibby family member 2 (CBY2), also known as SPERT or NURIT, is a gene with Chibby-like super family domain, whose function is not well known. In this study, the quail CBY2 gene was cloned, its sequences were analyzed, and its role in the myogenesis of QM7 quail muscle cells was characterized. Quail CBY2 has 978 nucleotides, which are translated into 325 amino acids, and the amino acid sequences are highly similar to those of chicken CBY2. Avian CBY2 diverted from mammalian CBY2 during early evolutionary history. According to the protein domain prediction analysis, quail CBY2 has a Chibby-like superfamily domain consisting of 83 amino acids at the N-terminal of the protein, although compared to mammalian CBY2, many of the amino acids were different. CBY2 was highly expressed in the adipose tissue and moderately expressed in the liver, heart, and kidney, whereas rarely expressed in the muscle tissue in quail. To characterize the role of CBY2 in myogenesis, CBY2 was overexpressed in QM7 cells. The overexpression of CBY2 inhibited myotube formation as shown that the myotube area was approximately only 25% that of the control. Taken together, quail CBY2 has a Chibby-like superfamily domain and inhibits myogenesis. Further studies should focus on the identification of the inhibitory mechanism of CBY2 on myogenesis.
Keywords
Chibby family member 2; CBY2; myogenesis; QM7 cell; muscle;
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