The next generation: using new sequencing technologies to analyse gene regulation
Rebecca Cullum1, Olivia Alder, Pamela A Hoodless
1Terry Fox Laboratory, British Columbia Cancer Agency, University of British Columbia, Vancouver, British Columbia, Canada.
Respirology (Carlton, Vic.)
|November 17, 2010
Summary
Next generation sequencing (NGS) offers cost-effective, rapid whole-genome and transcriptome analysis. This technology enables detailed studies of gene regulation, miRNA, and epigenetic modifications for advancing genomic research.
Area of Science:
- Genomics
- Molecular Biology
- Bioinformatics
Background:
- Next generation sequencing (NGS) has revolutionized genomic research by enabling cost-effective and rapid sequencing.
- Traditional methods had limitations in scope and efficiency for comprehensive genomic analysis.
Purpose of the Study:
- To highlight the versatility of NGS in various genomic applications.
- To demonstrate how NGS advances our understanding of gene expression and regulation.
Main Methods:
- Genome-wide transcriptional profiling using Tag-Seq and RNA-Seq.
- Small RNA sequencing for miRNA analysis.
- Chromatin immunoprecipitation with sequencing (ChIP-Seq) for studying protein-DNA interactions and epigenetic modifications.
- Methods for assessing DNA methylation and chromatin conformation.
Main Results:
- NGS allows for high-resolution, genome-wide assessment of gene expression and regulation.
- Techniques like RNA-Seq and ChIP-Seq provide detailed insights into transcriptional regulation, miRNA profiles, and epigenetic landscapes.
- NGS facilitates precise mapping of protein binding sites and correlation with gene expression.
Conclusions:
- NGS, when combined with strategic experimental protocols, provides powerful tools for answering complex questions in gene expression and regulation.
- These advanced sequencing techniques continue to significantly impact the research community and expand genomic knowledge.
Related Concept Videos
03:00Next-generation Sequencing
The first human genome sequencing project cost $2.7 billion and was declared complete in 2003, after 15 years of international cooperation and collaboration between several research teams and funding agencies. Today, with the advent of next-generation sequencing technologies, the cost and time of sequencing a human genome have dropped over 100 fold.
Next-Generation Sequencing Methods
Although all next-generation methods use different technologies, they all share a set of standard features.
Next-Generation Sequencing Methods
Although all next-generation methods use different technologies, they all share a set of standard features.
03:21RNA-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 microarray-based...
Before the discovery of RNA-seq, microarray-based methods and Sanger sequencing were used for transcriptome analysis. However, while microarray-based...
03:36Genome Annotation and Assembly
The genome refers to all of the genetic material in an organism. It can range from a few million base pairs in microbial cells to several billion base pairs in many eukaryotic organisms. Genome assembly refers to the process of taking the DNA sequencing data and putting it all back together in a correct order to create a close representation of the original genome. This is followed by the identification of functional elements on the newly assembled genome, a process called genome annotation.
02:02Genomics
Genomics is the science of genomes: it is the study of all the genetic material of an organism. In humans, the genome consists of information carried in 23 pairs of chromosomes in the nucleus, as well as mitochondrial DNA. In genomics, both coding and non-coding DNA is sequenced and analyzed. Genomics allows a better understanding of all living things, their evolution, and their diversity. It has a myriad of uses: for example, to build phylogenetic trees, to improve productivity and...
02:02Cis-regulatory Sequences
Cis-regulatory sequences are short fragments of non-coding DNA that are present on the same chromosomes as the genes that they regulate. These fragments serve as binding sites for transcriptional regulators, proteins that are responsible for controlling gene transcription and differential gene expression across cell types in eukaryotes. Cis-regulatory sequences can be close to the gene of interest or thousands of bases away in the DNA sequence; however, those sequences that are further away are...
02:02Cis-regulatory Sequences
Cis-regulatory sequences are short fragments of non-coding DNA that are present on the same chromosomes as the genes that they regulate. These fragments serve as binding sites for transcriptional regulators, proteins that are responsible for controlling gene transcription and differential gene expression across cell types in eukaryotes. Cis-regulatory sequences can be close to the gene of interest or thousands of bases away in the DNA sequence; however, those sequences that are further away are...