相关实验视频
Updated: May 20, 2025

10:34
Ultra-long Read Sequencing for Whole Genomic DNA Analysis
Published on: March 15, 2019
22.6K
改善了超高分子量基因组DNA的隔离,适用于第三代测序
Ayşe Öykü Ova1,2, Enrique Joffre1, Reza Zandi Shafagh3,4,5,6
1Department of Microbiology, Tumor and Cell Biology, Biomedicum, Karolinska Institutet, 17177 Stockholm, Sweden.
Microorganisms
|March 27, 2025
概括
研究人员开发了一个化室,用于隔离超高分子量基因组DNA. 这种方法可以产生高质量的长DNA片段,这对于先进的测序技术至关重要.
科学领域:
- 分子生物学分子生物学
- 基因组学就是基因组学.
- 生物技术是生物技术.
背景情况:
- 隔离超高分子量基因组DNA (UHMWGD) 用于第三代测序是具有挑战性的,因为DNA剪切.
- 现有的协议往往在长时间读取的测序应用程序中难以保持DNA完整性.
研究的目的:
- 开发一种新的方法来隔离UHMWGD,适用于无错的第三代测序.
- 克服当前DNA隔离技术在维护DNA长度和质量的局限性.
主要方法:
- 使用半透的聚碳酸膜建造一个专门的化室.
- 利用通过膜的选择性扩散进行高效的细胞溶解和DNA隔离.
- 采用一种灵感来自脉冲场凝电泳的DNA隔离技术的方法.
主要成果:
- 从具有挑战性的细菌样本中成功分离出高质量,超长的基因组DNA.
- 已证明分离的DNA适用于第三代测序 (例如,牛津纳米孔技术).
- 化室方法在隔离过程中最大限度地减少了DNA剪切.
结论:
- 开发的化室为UHMWGD隔离提供了一种简单但有效的方法.
- 这种技术有助于对长达兆基对的DNA片段进行例行测序.
- 潜在的应用范围包括微生物学,免疫学,瘤学,古生物学和法医科学.
相关概念视频
DNA Isolation
37.4K
DNA isolation protocols can be fast and straightforward or complex and time-consuming depending on the type and quality of DNA required for further processing. For example, plasmid DNA extraction is a bit more complicated than genomic DNA extraction because of the need for an appropriate lysis method to separate plasmid DNA from gDNA during isolation. However, for specific applications, such as long-range DNA sequencing that require a good yield of high- quality DNA samples, we need to follow...
37.4K
DNA Agarose Gel Electrophoresis
95.4K
Agarose gel electrophoresis is a laboratory technique commonly used to separate DNA fragments by size. However, it can also be used to isolate and purify DNA fragments using a gel extraction protocol.
Gel extraction follows five major steps: running gel electrophoresis to separate fragments, isolating the individual bands, extracting DNA from those bands, and removing the dye and salts from the extracted mixture to obtain pure DNA.
In cloning experiments, both the insert and vector DNA...
Gel extraction follows five major steps: running gel electrophoresis to separate fragments, isolating the individual bands, extracting DNA from those bands, and removing the dye and salts from the extracted mixture to obtain pure DNA.
In cloning experiments, both the insert and vector DNA...
95.4K

