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桃褐腐病菌角质酶基因的克隆与原核表达
引用本文:麻莹,责祎旦·加帕尔,葛喜珍,田平芳. 桃褐腐病菌角质酶基因的克隆与原核表达[J]. 北京化工大学学报(自然科学版), 2013, 40(2): 61-64
作者姓名:麻莹  责祎旦·加帕尔  葛喜珍  田平芳
作者单位:北京化工大学生命科学与技术学院,北京,100029;北京联合大学生物化学工程学院,北京,100023
摘    要:采用PCR法克隆了桃褐腐病菌的角质酶基因cutl,构建了诱导型表达载体pET28a-cutl,转化大肠杆菌E. coli(BL21),获得重组菌pET28a-cutl/ BL21。经异丙基-β-D-硫代吡喃半乳糖苷(IPTG)诱导,该重组菌角质酶的表达量约为对照菌的1.69倍,酶活约为对照菌的1.8倍,粗酶液的酶活可达40.33U/mL。

关 键 词:桃褐腐病菌  角质酶  原核表达
收稿时间:2012-05-28

Cloning and prokaryotic expression of the cutinase gene from Monilinia fructicola
MA Ying , Zeyidan JIAPAER , GE XiZhen , TIAN PingFang. Cloning and prokaryotic expression of the cutinase gene from Monilinia fructicola[J]. Journal of Beijing University of Chemical Technology, 2013, 40(2): 61-64
Authors:MA Ying    Zeyidan JIAPAER    GE XiZhen    TIAN PingFang
Affiliation:1.College of Life Science and Technology, Beijing University of Chemical Technology, Beijing 100029;2. Biochemical Engineering College of Beijing Union University, Beijing 100023, China
Abstract:The cutinase gene cutl has been cloned by a polymerase chain reaction (PCR) from Monolinia fructicola. After ligation to vector pET28a and transformation into E. coli (BL21), a recombinant strain pET28a cutl/BL21 was acquired. Upon isopropylthio-β-galactoside (IPTG) induction, this recombinant strain produced 1.69 times as much cutinase as the control strain. The maximum cutinase activity of the fermentation broth was 40.33U/mL, nearly 1.8 times that of the control strain.
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