What is tag in Sage experiment?

Serial Analysis of Gene Expression (SAGE) requires the isolation of mRNA and the generation of cDNA from which unique small sequences (∼14 bp), or tags, are generated using restriction enzyme digestion. The tags are then concatenated by ligation with other tags, amplified in a bacterial host and then sequenced.

How is the genetic code used in gene expression?

Gene expression is the process the cell uses to produce the molecule it needs by reading the genetic code written in the DNA. To do this, the cell interprets the genetic code, and for each group of three letters it adds one of the 20 different amino acids that are the basic units needed to build proteins.

What is sage in genomics?

Studying mRNAs, or the transcriptome, can yield important information about how genes work in an organism. Serial analysis of gene expression (SAGE) uses mRNA from a particular sample to create complementary DNA (cDNA) fragments which are then amplified and sequenced using high-throughput sequencing technology.

What is Sage sequencing?

Serial Analysis of Gene Expression (SAGE) is used to generate library of short sequence tags, each of which is then used to uniquely identify a transcript, with multiple tags forming long serial contigs across transcripts. SAGE™ technology allows comprehensive, digital, genome-wide expression analysis.

Which tagging enzyme is used in Sage?

restriction enzymes
In SAGE, the ds-cDNA is digested by restriction enzymes (at location ‘X’ and ‘X’+11) to produce 11-nucleotide ‘tag’ fragments. These tags are concatenated and sequenced using long-read Sanger sequencing (different shades of blue indicate tags from different genes).

What is transcriptomics analysis?

Transcriptome Analysis is the study of the transcriptome, of the complete set of RNA transcripts that are produced by the genome, under specific circumstances or in a specific cell, using high-throughput methods.

How do you analyze gene expression?

In addition to Northern blot tests and SAGE analyses, there are several other techniques for analyzing gene expression. Most of these techniques, including microarray analysis and reverse transcription polymerase chain reaction (RT-PCR), work by measuring mRNA levels.

What are the two types of gene therapy?

There are two different types of gene therapy depending on which types of cells are treated:

  • Somatic gene therapy: transfer of a section of DNA to any cell of the body that doesn’t produce sperm or eggs.
  • Germline gene therapy: transfer of a section of DNA to cells that produce eggs or sperm.

What are the steps of gene expression?

It consists of two major steps: transcription and translation. Together, transcription and translation are known as gene expression. During the process of transcription, the information stored in a gene’s DNA is passed to a similar molecule called RNA (ribonucleic acid) in the cell nucleus.