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논문 기본 정보

자료유형
학술저널
저자정보
Caifang Chen (Zhejiang Wanli University) Weiliang Shen (Ningbo Academy of Ocean and Fishery) Hailong Gu (Zhejiang Wanli University) Linde Wu (Zhejiang Wanli University) Zhihua Lin (Zhejiang Wanli University) Qinggang Xue (Zhejiang Wanli University)
저널정보
한국유전학회 Genes & Genomics Genes & Genomics Vol.39 No.2
발행연도
2017.1
수록면
143 - 154 (12page)

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The bloody clam, Tegillarca granosa, is a commercial benthic bivalve, having a strong accumulation ability and torrelence to cadmium. To investigate whether vitellogenin (Vg) is involved in cadmium (Cd) detoxification, the full-length cDNA of T. granosa Vg was cloned, and its expression pattern in response to cadmium exposure was studied compared with the reference metallothionein (MT) gene. The full T. granosa Vg sequence consisted of 8988 bp, including a 6930-bp open reading frame that encoded a 2309 amino acid polypeptide. The deduced Vg protein contained a Vg N-terminal domain, domain of unknown function (DUF1943), SbcC domain, and von Willebrand factor typeD domain (VWD). Multiple metal-binding sites were predicted in the deduced T. granosaVg protein, suggesting its potential in functioning as a metal-binding protein. In addition, Vg expression increased in the T. granosa digestive gland and hemolymph in time-dependent manner after exposure to 1, 3, 6 and 9 lg/L Cd for 28 days.MTexpression was measured in parallel with Vg expression, and the latter was more sensitive to Cd induction than the former. Together, results of the present research suggested that Vg may play an important role in T. granosa metal detoxification.

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