In the past decade, second-generation sequencing has been rapidly developed and widely used in the studies of genome, transcriptome, and epigenetics of many species. It also acts as an important technological support for pharmacy, diagnosis, and many other fields. In recent years, second-generation sequencing has been increasingly used to monitor protein translation. Combining ribosome profiling […]
What Is Sanger Sequencing? Sanger sequencing, also known as the “chain termination method,” was developed by the English biochemist Frederick Sanger and his colleagues in 1977. This method is designed for determining the sequence of nucleotide bases in a piece of DNA (commonly less than 1,000 bp in length). Sanger sequencing with 99.99% base accuracy […]
Mitochondria are recognized as the powerhouse of the cell since they help convert oxygen and nutrients into adenosine triphosphate (ATP), the energy currency of the cell. Mitochondria are small organelles (usually 0.75~3 micrometers), found in nearly all types of human cells except mature red blood cells, as well as cells of other eukaryotes (such as […]
What is a DNA Microarray? Microarray is a common laboratory tool for detecting gene expression or gene mutations in a high throughput manner. These slides are also known as gene chips or DNA chips. Thousands of probes (with known identity) are immobilized on a microscope slides or silicon chips or nylon membrane, with thousands of […]
Microsatellites, also known as simple tandem repeats (STRs), are simple repeat sequences distributing in eukaryotic genomes, which are composed of 2 ~ 6 nucleotide tandem repeats. The repeating times in individual are variable, therefore, the application of microsatellite markers is very extensive. Microsatellite loci is usually amplified by PCR. PCR products are analyzed by electrophoresis […]
Like many researchers to do hundreds of pieces of Southern blots, I first used PCR genotyping with soon efficiency. It no longer needed such as a few days to see the results and no longer needed DNA microscopic images or UV. With the continuous progress of technology, RCR makes the genomics and transcriptomics change dramatically, […]
The PacBio RS system is the third generation sequencing platform based on the SMRT sequencing system which is invented by Pacific Biosciences company. It can do the job of sample preparation, sequencing and sequencing read in one day. It has some advantages that the second generation sequencing technology doesn’t have: splicing of a large amount […]
What is SNP? SNP is the abbreviation of a single nucleotide polymorphism. It is the DNA sequence polymorphism caused by variation of single nucleotide, including the transition, transversion, insertion and deficiency of a single base. On average, one in 1,000 nucleotides in human genome is SNP. There are more than three million SNPs in the […]
As human beings, we are all faced with the process of growing up, getting old and going to heaven. It’s a natural process that follows the rule of nature. But as human beings, this naturally comes to us that we are fearful of this process. We dream about immortality, which is reflected in many art […]
Genotyping, also known as Genotypic assay, is widely used in population genetics and forensic medicine. This is a technology which use biological methods to detect Individual genotype. The methods contain PCR, DNA fragmentation assay, ASO probes, gene sequencing and so on. In the early stage researchers use Southernblots method to do genotyping, but it is […]
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