相关实验视频

Updated: Jan 18, 2026

Targeted RNA Sequencing Assay to Characterize Gene Expression and Genomic Alterations

Targeted RNA Sequencing Assay to Characterize Gene Expression and Genomic Alterations

Published on: August 4, 2016

混合捕获RNA-seq定义了Rickettsia中的时间基因表达

Allison T Scott, Jon McGinn, Vincent L Butty

bioRxiv : the preprint server for biology

|January 16, 2026

概括

这项研究引入了病原体混合捕获 (PatH-Cap) 以在感染期间对瑞克菌的基因表达进行分析. 该方法克服了宿主RNA污染,揭示了时间基因趋势和反意义RNA,以更好地了解细菌病原性.

科学领域:

微生物学和分子生物学
基因组学和转录基因组学
传染病和病原体的发生

背景情况:

致病性瑞克菌是一种具有鲜为人知的基因调节网络的有义务的细胞内细菌.
标准RNA测序 (RNA-seq) 与宿主RNA污染作斗争,阻碍了感染期间的Rickettsia的转录分析.
在Rickettsia感染期间的动态基因表达变化难以全面描述.

研究的目的:

适应和应用病原体杂交捕获 (PatH-Cap) 方法,用于对瑞克特西亚物种敏感的转录概况.
为了研究在里克特西亚感染的前24小时内,包括感染开始的时间基因表达趋势.
识别和分析反意义RNA分子,并预测Rickettsia parkeri.中的操作结构.

主要方法:

对Rickettsia物种的PatH-Cap技术的调整,以丰富细菌转录和耗尽宿主/rRNA.
应用PatH-CapRNA测序来分析感染最初24小时的转录变化.
基于时间表达趋势的基因聚类和反意义RNA分子的识别.

主要成果:

PatH-Cap成功丰富了细菌的转录,使得在感染开始期间能够分析基因表达的概况.
在不同感染阶段确定了具有上调或下调表达的不同基因队列.
发现了310个反感性RNA分子,其中许多具有强烈的时间表达趋势,并突出了与毒性相关的基因的多样化表达模式.

结论:

PatH-Cap是一种强大的工具,用于敏感的细胞内病原体的转录概况,如Rickettsia.
这项研究提供了迄今为止最全面的时间Rickettsia基因表达分析.
这些发现为未来研究Rickettsia在各种条件和疾病模型下的基因调节奠定了基础.

更多相关视频

Identification of Key Factors Regulating Self-renewal and Differentiation in EML Hematopoietic Precursor Cells by RNA-sequencing Analysis

Identification of Key Factors Regulating Self-renewal and Differentiation in EML Hematopoietic Precursor Cells by RNA-sequencing Analysis

Published on: November 11, 2014

Real-time Imaging of Single Engineered RNA Transcripts in Living Cells Using Ratiometric Bimolecular Beacons

Real-time Imaging of Single Engineered RNA Transcripts in Living Cells Using Ratiometric Bimolecular Beacons

Published on: August 6, 2014

相关概念视频

RNA-seq

RNA-seq

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...

Ribosome Profiling

Ribosome Profiling

Ribosome profiling or ribo-sequencing is a deep sequencing technique that produces a snapshot of active translation in a cell. It selectively sequences the mRNAs protected by ribosomes to get an insight into a cell’s translation landscape at any given point in time.
Applications of ribosome profiling
Ribosome profiling has many applications, including in vivo monitoring of translation inside a particular organ or tissue type and quantifying new protein synthesis levels.
The technique...

Real Time RT-PCR

Real Time RT-PCR

Real-time reverse transcription-polymerase chain reaction, or Real-time RT-PCR, is an analytical tool used to determine the expression level of target genes. The method involves converting mRNA to complementary DNA with the help of an enzyme known as reverse transcriptase, followed by the PCR amplification of the cDNA. These two processes can be performed simultaneously in a single tube or separately as a two-step reaction.
The real-time quantification of the number of amplified products is...