DNA watermarks: a proof of concept.

DNA watermarks: a proof of concept.
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DNA水印:概念证明。

DOI:
10.1186/1471-2199-9-40
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发表时间:
2008-04-21
影响因子:
--
通讯作者:
Barnekow A
Barnekow A
中科院分区:
生物3区
文献类型:
--
作者:
Heider D;Barnekow A

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基于DNA的水印是识别未经授权使用受专利保护的转基因生物(GMOs)的有用工具。计算机模拟分析表明,在编码区的同义密码子可以用来插入加密的信息到生物体的基因组中使用DNA-Crypt算法。我们在Vam 7序列中集成了认证水印。在我们的研究中,我们使用了一种突变的酿酒酵母菌株,称为CG 783,它在Vam 7序列中有一个琥珀突变。CG 783细胞不能形成孢子,此外还显示出异常的空泡形态。用pRS 314 Vam 7转化CG 783导致与野生型酵母菌株CG 781非常相似的表型。整合的水印不影响Vam 7的功能,并且与用pRS 314 Vam 7转化的CG 783细胞相比,用pRS 314 Vam 7-TB转化的CG 783细胞的所得表型没有显示显著差异。从我们的实验中,我们得出结论,DNA水印产生的DNA-Crypt不影响从mRNA到蛋白质的翻译。通过分析空泡形态、生长速率和形成孢子的能力,我们证实所得到的Vam 7蛋白具有功能活性。
DNA-based watermarks are helpful tools to identify the unauthorized use of genetically modified organisms (GMOs) protected by patents. In silico analyses showed that in coding regions synonymous codons can be used to insert encrypted information into the genome of living organisms by using the DNA-Crypt algorithm. We integrated an authenticating watermark in the Vam7 sequence. For our investigations we used a mutant Saccharomyces cerevisiae strain, called CG783, which has an amber mutation within the Vam7 sequence. The CG783 cells are unable to sporulate and in addition display an abnormal vacuolar morphology. Transformation of CG783 with pRS314 Vam7 leads to a phenotype very similar to the wildtype yeast strain CG781. The integrated watermark did not influence the function of Vam7 and the resulting phenotype of the CG783 cells transformed with pRS314 Vam7-TB shows no significant differences compared to the CG783 cells transformed with pRS314 Vam7. From our experiments we conclude that the DNA watermarks produced by DNA-Crypt do not influence the translation from mRNA into protein. By analyzing the vacuolar morphology, growth rate and ability to sporulate we confirmed that the resulting Vam7 protein was functionally active.
DOI: 10.1021/bp049917i
发表时间: 2004-09-01
影响因子: 2.9
作者:
Arita, M;Ohashi, Y
通讯作者: Ohashi, Y
DOI: 10.1083/jcb.128.5.779
发表时间: 1995-03
期刊: The Journal of cell biology
影响因子: --
作者:
Vida TA;Emr SD
通讯作者: Emr SD
使用DNA-Crypt算法的基于DNA的水印。
DOI: 10.1186/1471-2105-8-176
发表时间: 2007-05-29
期刊: BMC BIOINFORMATICS
影响因子: 3
作者:
Heider, Dominik;Barnekow, Angelika
通讯作者: Barnekow, Angelika
DOI: 10.1093/protein/9.2.133
发表时间: 1996-02-01
期刊: PROTEIN ENGINEERING
影响因子: --
作者:
Frishman, D;Argos, P
通讯作者: Argos, P
DOI: 10.1002/pro.5560051116
发表时间: 1996-11-01
期刊: PROTEIN SCIENCE
影响因子: 8
作者:
King, RD;Sternberg, MJE
通讯作者: Sternberg, MJE