溴化氰
大肠杆菌
质粒
基因
PBR322电话
基因产物
生长抑素
化学
转化(遗传学)
氨基酸
分子生物学
肽序列
肽
生物化学
生物
基因表达
神经科学
作者
Keiichi Itakura,Takahisa Hirose,Roberto Crea,Arthur D. Riggs,Herbert L. Heyneker,Francisco Bolívar,Herbert W. Boyer
出处
期刊:Science
[American Association for the Advancement of Science (AAAS)]
日期:1977-12-09
卷期号:198 (4321): 1056-1063
被引量:816
标识
DOI:10.1126/science.412251
摘要
A gene for somatostatin, a mammalian peptide (14 amino acid residues) hormone, was synthesized by chemical methods. This gene was fused to the Escherichia coli β-galactosidase gene on the plasmid pBR322. Transformation of E. coli with the chimeric plasmid DNA led to the synthesis of a polypeptide including the sequence of amino acids corresponding to somatostatin. In vitro, active somatostatin was specifically cleaved from the large chimeric protein by treatment with cyanogen bromide. This represents the first synthesis of a functional polypeptide product from a gene of chemically synthesized origin.
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