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Position: Home > Articles > Cloning and Recombinant Protein Expression of ACC Synthase Genes in Cut Roses(Rosa hybrida) Acta Horticulturae Sinica 2010,37 (7) 1132-1138

切花月季ACC合成酶基因的克隆和原核表达

作  者:
谭远军;薛璟祺;仝征;马男;高俊平
单  位:
中国农业科学院蔬菜花卉研究所;中国农业大学观赏园艺与园林系
关键词:
月季切花;ACS;基因克隆;原核表达
摘  要:
克隆了与伤害诱导相关的Rh-ACS1和与花朵开放进程及乙烯诱导相关的Rh-ACS3基因全长。结果表明,Rh-ACS1基因全长为2132bp,开放阅读框(ORF)长度为1476bp,推定编码491个氨基酸。Rh-ACS3基因的全长1734bp,ORF长度为1545bp,推定编码514个氨基酸。对这两个基因编码的蛋白进行原核表达分析,结果显示,在37℃条件下,0.6mmol·L-1IPTG诱导3h后,携带Rh-ACS1ORF和Rh-ACS3ORF的原核表达载体分别在大肠杆菌中诱导生成了大量分子量约为70和60kD的蛋白质,其大小与根据基因序列预测的理论值相一致。
译  名:
Cloning and Recombinant Protein Expression of ACC Synthase Genes in Cut Roses(Rosa hybrida)
作  者:
TAN Yuan-jun1,XUE Jing-qi2,TONG Zheng1,MA Nan1,and GAO Jun-ping1,*(1Department of Ornamental Horticulture and Landscape Architecture,China Agricultural University,Beijing 100193,China;2Institute of Vegetables and Flowers,Chinese Academy of Agricultural Sciences,Beijing 100081,China)
关键词:
cut rose;ACS;gene cloning;procaryotic expression
摘  要:
Our previous work showed that the expression of ACC synthase genes was contributed to the effects of ethylene on hastening flower opening.In the present work,we isolated the wound-inducible and ethylene up-regulated ACS genes,namely Rh-ACS1 and Rh-ACS3,from cut rose petals.The full length of Rh-ACS1 is 2 132 bp,contains a 1 476 bp ORF which encodes a putative ACS protein with 491 aa,while the entire Rh-ACS3 is 1 734 bp in length,and contains a 1 545 bp ORF which encodes a putative ACS protein with 514 aa.The ORFs of Rh-ACS1 and Rh-ACS3 were inserted into pGEX-4T-1 and pET-30a to express the recombinant proteins in E.coli,respectively.The expression of predicted 70 kD and 60 kD recombinant proteins were induced by isopropyl β-D-thiogalacto-pyranoside(IPTG)at a final concentration of 0.6 mmol · L-1 for 3 h at 37 ℃.

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