›› 2010, Vol. 37 ›› Issue (10): 68-71.

• 生物技术 • 上一篇    下一篇

线虫fat-1基因密码子优化设计

杜新华1, 赵志辉2, 于浩2, 李俊雅1, 高雪1, 许尚忠1   

  1. (1.中国农业科学院北京畜牧兽医研究所,农业部畜禽遗传资源与利用重点开放实验室, 北京 100193;2.吉林大学畜牧兽医学院, 长春 130062)
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2010-10-20 发布日期:2010-10-20
  • 通讯作者: 许尚忠

Codon Optimization of fat-1 Gene from Caenorhabditis elegan

DU Xin-hua1,ZHAO Zhi-hui2,YU Hao2,LI Jun-ya1,GAO Xue1,XU Shang-zhong1   

  1. (1.Key Laboratory of Farm Animal Genetic Resources and Utilization of Ministry of Agriculture, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, China;2.Husbandry and Veterinary College, Jilin University, Changchun 130062, China)
  • Received:1900-01-01 Revised:1900-01-01 Online:2010-10-20 Published:2010-10-20
  • Contact: XU Shang-zhong

摘要: 本研究旨在优化线虫fat-1基因,使其在牛肌肉组织中高效表达,为进一步生产fat-1转基因肉牛提供目的基因。试验在不改变fat-1基因编码氨基酸序列的基础上,参考了11个牛肌肉蛋白相关基因的密码子使用频率,对fat-1基因进行了密码子优化。结果发现,共改变了65个碱基,涉及65个密码子、7个氨基酸,约占fat-1基因总碱基数的5.38%,G+C含量从45.08%上升到50.04%,且分布均匀利于基因的表达。结构预测结果显示,该优化后的基因能够在牛肌肉中高效表达。

关键词: fat-1基因; 密码子优化; 牛; 肌肉蛋白

Abstract: The objective of his study was to optimize the fat-1 condon from caenorhaditis elean. In this study, on the basis of no changing the amino acid sequence of fat-1 gene, we optimized the condon of fat-1 gene based on the codon preference of bovine muscle protein gene, in order to make fat-1 gene had high-level expression in cattle muscle. It could make a preparation for the production of fat-1 transgenic cattle. We changed 65 bases, which concering 65 codons and 7 amino acid. It accounted 5.38% for all the fat-1 gene bases. G+C contents increased from 45.08% to 50.04% and distributed uniformly, which was beneficial to the expression of the gene. The prediction result of the RNA secondary structure showed that the optimized gene could have high-level expression in cattle muscle.

Key words: fat-1 gene; codon optimization; cattle; muscle protein

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