Molecular cloning and differential expression patterns of copper/zinc superoxide dismutase and manganese superoxide dismutase in Hypophthalmichthys molitrix
文献类型： 外文期刊
作者： Zhang, Zhi-Wei 1 ; Li, Zhong 1 ; Liang, Hong-Wei 1 ; Li, Lin 1 ; Luo, Xiang-Zhong 1 ; Zou, Gui-Wei 1 ;
作者机构： 1.Chinese Acad Fisheries Sci, Yangtze River Fisheries Res Inst, Jinzhou 434000, Hubei, Peoples R China
2.HuaZhong Agr Univ, Coll Fisheries, Wuhan 430070, Peoples R China
期刊名称：FISH & SHELLFISH IMMUNOLOGY （ 影响因子：4.581； 五年影响因子：4.851 ）
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收录情况： SCI
摘要： Copper/zinc superoxide dismutase (Cu,Zn-SOD) cDNA and manganese superoxide dismutase (Mn-SOD) cDNA were first cloned from silver carp Hypophthalmichthys molitrix using reverse transcription-polymerase chain reaction (RT-PCR) and rapid amplification of cDNA ends (RACE) method. The open reading frame (ORF) of Cu,Zn-SOD is 465aabp and encodes a 154 amino acids (aa) protein, whereas the ORF of Mn-SOD is 675aabp and encodes a 224 aa protein. Multiple polypeptide sequence alignment showed high identity both of Cu,Zn-SOD (70-87%) and Mn-SOD (80-96%) with the species compared. Both Cu,Zn-SOD and Mn-SOD were detected in heart, brain, liver, kidney, spleen, muscle, gill and blood. Cu,Zn-SOD and Mn-SOD were expressed throughout the embryogenesis, indicating their important roles during embryonic development specially at the cleavage stage. Acute hypoxia suppressed expression of Cu,Zn-SOD and Mn-SOD in liver significantly, up-regulated them in gill relatively, indicating that tissue-specific expression of Cu,Zn-SOD and Mn-SOD is an important stress response adapted to hypoxia.
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