| 查看: 1193 | 回复: 1 | |||
| 本帖产生 1 个 翻译EPI ,点击这里进行查看 | |||
[交流]
100金币求两段英文翻译
|
|||
|
利用大肠杆菌的偏爱密码子,把三个LNK-16串联起来,根据串联起来的氨基酸残基,通过反向翻译出它的目的基因片段。在目的基因片段两端加入限制性酶切位点和保护碱基,利用SOEingPCR的方法把目的基因片段分成四段互补的引物。人工这合成这四段引物,通过TD-PCR方法最终扩增出目的基因。把目的基因和质粒载体PET30a(+)进行双酶切后,利用T4DNA连接酶重新构建出质粒载体PET30a(+)-LNK-16,通过双酶切和PCR鉴定成功构建了载体,经测序表明与设计的目的基因完全相同。 把含有测序完全正确载体的菌体大量表达,经ITPG诱导后,在大肠杆菌包涵体中表达出目的蛋白,目的蛋白纯化后在三乙醇胺缓冲液中用激肽释放酶酶切,酶解液对大肠杆菌表现出抗菌活性。从而为抗菌肽不能在原核中表达提供的解决的方法,为解决抗菌肽来源问题的研究奠定了一定的基础。 |
» 猜你喜欢
大佬帮着分析今年的评审意见?该课题连续申请了三年了,明年要不要换个方向。
已经有11人回复
两块石头
已经有10人回复
广西大学-广州大学招聘博士后 欢迎广大优秀人才!!!
已经有8人回复
科研人应该花精力去思考如何解决问题,而不是去凝练问题
已经有19人回复
售SCI一区T0P文章,我:8.O.55.1.O54,科目全,可伽急
已经有9人回复
售SCI一区T0P文章,我:8O.55.1.O.54,科目全,可伽急
已经有15人回复
面上没中,邀请各位路过的虫友分析一下分数
已经有13人回复
初秋的晨风
已经有6人回复
学科评审组评审是指会评吗?
已经有9人回复
Ei源刊怎么投
已经有4人回复
fbook(金币+150, 翻译EPI+1): 十分感谢你提的宝贵意见…… 2011-04-09 08:14:25
|
We connected three LNK-16 peptides by using codon preference of E.coli, and took a reverse translation of its target gene according to the amino acid residues linked together. By adding restriction enzyme sites and protective bases at both ends of the target gene, we divided the target gene into four complementary primers through the method of SOEingPCR. Then we synthesized these four primers and amplified the target gene by TD-PCR. After double digestion of the target gene and plasmid vector PET30a (+), we re-constructed the plasmid vector PET30a (+)-LNK-16 with T4DNA ligase. With double digestion and PCR identification we successfully constructed the vector, and sequencing showed that it was the same as the target gene we designed. After taking mass expression of vector proved to be completely correct by sequencing and ITPG induction, we expressed the target protein in cytorrhyctes of E.coli. After purification, the protein was digested by kallikrein in triethanolamine buffer, and the enzymolysis liquid showed antibacterial activity to E.coli. Thus, the research provided new method for solving the problem of antimicrobial peptides can not be expressed in prokaryote and laid a foundation for solving the source problem of antibacterial peptides. 备注: 1、原文“把含有测序完全正确载体的菌体大量表达”表达似有错误,“表达菌体”描述有逻辑问题; 2、原文“从而为抗菌肽不能在原核中表达提供的解决的方法”似应改为“从而为抗菌肽不能在原核中表达提供了解决的方法”。 3、水平有限,仅供参考,谢谢。 |
2楼2011-04-08 16:57:25










回复此楼