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相关概念视频

DNA Isolation01:24

DNA Isolation

38.9K
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...
38.9K
Restriction Enzymes01:11

Restriction Enzymes

30.7K
Restriction enzymes are bacterial enzymes used to cut DNA in a sequence-specific manner. To cleave DNA, they bind to specific palindromic sequences called restriction sites. Such palindromic DNA sequences or inverted repeats are commonly found in regions of functional significance, such as the origin of replication, gene operator sites, and regions containing transcription termination signals.
The host bacteria protect their own genomic DNA from these enzymes by methylating these sites. Some...
30.7K

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相关实验视频

Updated: Jun 27, 2025

Author Spotlight: Advancements in DNA Nanosensors – Addressing Sensitivity and Selectivity Challenges in Molecular Detection
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Author Spotlight: Advancements in DNA Nanosensors – Addressing Sensitivity and Selectivity Challenges in Molecular Detection

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工程基因特异性DNA酶用于可访问和多重复合的核酸测试.

Lu Gao1, Ke Yi2, Yun Tan1

  • 1Key Laboratory of Green Chemistry & Technology of Ministry of Education, College of Chemistry, Sichuan University, Chengdu, Sichuan 610064, China.

JACS Au
|April 26, 2024
PubMed
概括

我们开发了CLARISSA,一种类似CRISPR的测试方法,使用DNA酶来敏感地检测人类乳头瘤病毒 (HPV) 等遗传标记物的护理点. 这种多功能工具在现场提供了准确的疾病诊断.

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gDNA Enrichment by a Transposase-based Technology for NGS Analysis of the Whole Sequence of BRCA1, BRCA2, and 9 Genes Involved in DNA Damage Repair
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Wild-type Blocking PCR Combined with Direct Sequencing as a Highly Sensitive Method for Detection of Low-Frequency Somatic Mutations
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Wild-type Blocking PCR Combined with Direct Sequencing as a Highly Sensitive Method for Detection of Low-Frequency Somatic Mutations

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相关实验视频

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07:16

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gDNA Enrichment by a Transposase-based Technology for NGS Analysis of the Whole Sequence of BRCA1, BRCA2, and 9 Genes Involved in DNA Damage Repair
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gDNA Enrichment by a Transposase-based Technology for NGS Analysis of the Whole Sequence of BRCA1, BRCA2, and 9 Genes Involved in DNA Damage Repair

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Wild-type Blocking PCR Combined with Direct Sequencing as a Highly Sensitive Method for Detection of Low-Frequency Somatic Mutations
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科学领域:

  • 分子生物学分子生物学
  • 生物技术是生物技术.
  • 诊断 诊断 诊断 诊断

背景情况:

  • 精确的疾病生物标志物在护理地点的检测对于治疗和监测至关重要.
  • 现有的方法可能缺乏灵敏度,特异性或现场部署能力.

研究的目的:

  • 开发和验证一种新的核酸检测测定量,CLARISSA,用于点的护理应用.
  • 为特定的遗传标记物检测和信号放大设计RNA分裂DNA酶.

主要方法:

  • 工程基因特异性DNA酶 (gDzs) 用于目标识别和分离.
  • 开发了CLARISSA试验,将gDzs与异热放大 (重组酶聚合酶放大) 结合起来.
  • 在临床宫样本中对人类乳头瘤病毒 (HPV) 16检测和多重HPV16/18检测进行了验证.

主要成果:

  • 在189个样本中,CLARISSA在检测HPV16方面实现了100%的灵敏度和97.4%的特异性.
  • 多复合的CLARISSA在46个样本中显示出96.3%的HPV16敏感度和83.3%的HPV18敏感度.
  • 测试表明与光和侧流读数兼容,没有假阳性.

结论:

  • CLARISSA是一个多功能,灵敏和特定的核酸检测平台.
  • 该试验适用于照顾点和基于现场的临床诊断.
  • 在各种诊断应用中,CLARISSA为CRISPR-Dx提供了一个有希望的替代方案.