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相关概念视频

In-situ Hybridization02:31

In-situ Hybridization

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In situ hybridization (ISH) is a technique used to detect and localize specific DNA or RNA molecules in cells, tissue, or tissue sections using a labeled probe. The technique was first used in 1969 for the investigation of nucleic acids. It is currently an essential tool in scientific research and clinical settings, especially for diagnostic purposes.
Types of probes and labels
A probe is a complementary strand of DNA or RNA that binds to corresponding nucleotide sequences in a cell. Many...
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Southern Blot02:57

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Agarose gel electrophoresis is very useful in separating DNA fragments by size. Running a DNA ladder containing fragments of the known length alongside the sample helps determine the approximate length of the sample DNA fragments. However, additional steps are needed to verify the sequence identity of the sample DNA fragments.
Denatured DNA fragments must be transferred onto a carrier membrane from the gel to make it accessible to a probe - a small ssDNA fragment complementary to the target DNA...
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RNA-seq03:21

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RNA sequencing, or RNA-Seq, is a high-throughput sequencing technology used to study the transcriptome of a cell. Transcriptomics helps to interpret the functional elements of a genome and identify the molecular constituents of an organism. Additionally, it also helps in understanding the development of an organism and the occurrence of diseases. 
Before the discovery of RNA-seq, microarray-based methods and Sanger sequencing were used for transcriptome analysis. However, while...
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相关实验视频

Updated: Jun 23, 2025

Identification of RNAs Engaged in Direct RNA-RNA Interaction with a Long Non-Coding RNA
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Identification of RNAs Engaged in Direct RNA-RNA Interaction with a Long Non-Coding RNA

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液体和固体杂交方法检测RNAs

Waqar Ahmad1, Jasmin Baby1,2, Bushra Gull1

  • 1Department of Biochemistry & Molecular Biology, College of Medicine and Health Sciences, United Arab Emirates (UAE) University, Al Ain, United Arab Emirates.

Methods in molecular biology (Clifton, N.J.)
|June 22, 2024
PubMed
概括
此摘要是机器生成的。

北方涂抹是一种传统的RNA检测方法. 一种新的液体杂交 (LH) 技术为检测信使RNA,小RNA和微RNA提供了更快,更敏感和更具成本效益的替代方案.

关键词:
生物分子成像成像技术生物化是生物化的一种.外核酶I 在外核酶I中.液体杂交 (LH) 试验试验北方涂抹 (NB) 是指北方涂抹.小的RNA小的RNA小的RNA它们是mRNARNA.这是一个小RNARNA.

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Rapid Colorimetric Assays to Qualitatively Distinguish RNA and DNA in Biomolecular Samples

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Radioactive in situ Hybridization for Detecting Diverse Gene Expression Patterns in Tissue
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Radioactive in situ Hybridization for Detecting Diverse Gene Expression Patterns in Tissue

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相关实验视频

Last Updated: Jun 23, 2025

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科学领域:

  • 分子生物学分子生物学
  • 生物化学 生物化学
  • 遗传学 是一个遗传学.

背景情况:

  • 北方涂抹 (NB) 是一种传统的RNA检测方法,但它是劳动密集的,需要放射性试剂.
  • 微RNA (miRNA) 的发现增加了对敏感RNA检测方法的需求.
  • 现有的方法往往缺乏广泛的miRNA分析所需的灵敏度或成本效益.

研究的目的:

  • 开发一种快速,低成本,高灵敏的RNA检测方法.
  • 为了比较新方法的性能与北方涂抹对各种RNA类型,包括miRNAs.
  • 为了建立一个替代放射性探头和专用试剂.

主要方法:

  • 开发用于RNA检测的新型固体和液体杂交 (LH) 协议.
  • 利用生物化探头和优化混合化,转移,交叉链接和信号增强技术.
  • 将LH的灵敏度和特异性与传统的北方斑点对信使RNAs (mRNAs),小RNAs和miRNAs进行比较.

主要成果:

  • 开发的LH协议在检测mRNA,小RNA和miRNA方面表现出高灵敏度,即使在低RNA度下也是如此.
  • LH的灵敏度与放射性标记探针相美,在检测较少量的RNA方面表现优于Northern blotting.
  • 这种LH方法被证明比北方涂抹更快,更敏感,更具特异性.

结论:

  • 液体杂交 (LH) 为敏感和定量RNA检测提供了北方涂抹的优越替代方案.
  • 这种LH协议具有成本效益,快速,并且适用于检测广泛的RNA分子,包括具有挑战性的目标,如miRNAs.
  • 这种方法消除了对放射性标记或专用探针的需求,使RNA分析更容易获得.