An Easy Guide to DNA Sequencing: Sanger Sequencing and Next-Gen Sequencing

DNA sequencing - is truly an important technology used in modern biology and medicine. Do you know why? Because it offers great meaningful insights into the genetic code - the code that basically underlies all living organisms.

So, whether you're a researcher, clinician or someone in need of DNA sequencing services - it’s important for you to understand the basics of this technology first.

If we explain what DNA sequencing is in easy terms - then it can be explained like this - DNA sequencing is a process that helps to determine the exact order of the nucleotides (like A, T, C, G) in a DNA molecule.

And, knowing the exact order of nucleotides is important because it provides the most vital information for a wide range of applications. Diagnosing genetic disorders, and advanced personalized medicine - all sectors need DNA sequencing.

When we talk about this sequencing thing - two technologies are premier to mention; one is Sanger sequencing and the other one is Next-Generation Sequencing (NGS). Each of these methods has unique specific strengths but also some challenges.

Sanger DNA Sequencing:

See, Sanger sequencing is named after the pioneering scientist Frederick Sanger. This is one of the earliest and most reliable methods. And, it was developed to read DNA sequences. And, for many years, this process has been used widely in genetic research and diagnostics.

So, what is this process? Well, the process begins with preparing the DNA sample first. This beginning phase involves extracting and purifying the DNA from the cells. Once the sample is ready, the replication process begins. The DNA is mixed with primers, which are short DNA fragments that start the replication. DNA polymerase is added next - this is an enzyme that builds new DNA strands. A mix of normal nucleotides (A, T, C, G) and special chain-terminating nucleotides is also included. These chain-terminating nucleotides basically stop the replication when they are added to the DNA strand. As a result, it creates fragments of different lengths.

These fragments are then separated based on their size. And, the separation is done using a gel called gel electrophoresis. By finding the terminating nucleotide at the end of each fragment, the DNA sequence can be accurately determined.

Sanger sequencing offers high accuracy. And, this technique is more applicable to short DNA sequences. So, for sequencing individual genes or small regions of the genome - sanger sequencing is best.

But, there are some limitations. This Sanger method is time-consuming and labor-intensive. And, that’s why it is not that effective for large-scale projects, for instance - whole genome sequencing.

Next-Generation Sequencing (NGS) :

Now, we will explain Next-Generation Sequencing (NGS). This technique is more of an advanced and improved technology in DNA sequencing. It encompasses a variety of modern sequencing techniques. So, this advanced method allows for the rapid and simultaneous sequencing of large amounts of DNA. Amazing, right?

The process begins similarly to Sanger sequencing - like the preparation of the DNA sample. The DNA is fragmented into smaller pieces, and adapters are added to each fragment to simply proceed the sequencing process. These fragments are then amplified to create a library of DNA sequences.

NGS platforms use different methods to sequence these fragments in parallel. Some platforms use synthesis for sequencing while others prefer ligation for sequencing. Regardless of the specific technique, the result is amazing, which is the generation of massive amounts of data. Later this data is analyzed using powerful computational tools to reconstruct the DNA sequence.

Advanced NGS technique allows for the sequencing of entire genomes quickly and cost-effectively. So, it provides a deep coverage that can detect even rare genetic variations.

However, NGS demands something - like sophisticated equipment and expertise in bioinformatics. This process is really useful for large-scale projects and genomic research, clinical diagnostics and personalized medicine.

Bottom Line -

Bio Basic is a reliable online portal that is your go-to solution for DNA sequencing services. Whether it is about Sanger sequencing or Next-gen sequencing - we can offer all. Plus, we are a reliable supplier of high quality DNA extraction kits at the most competitive rates.

Plus, if you join our bi-monthly newsletter you will get 10% off your order!

We have more than 10 years of experience as a premier DNA Sequencing provider. We are best known for fast, efficient DNA sequencing services at the best rate.

If you want to request a quotation or place orders, you need to download our order form and email it to our sequencing department. We will reach you within 24 hours.

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Gene Synthesis: An Overview Of Its Use In Biotechnology

Gene synthesis - a very important process in molecular biology. Why? Because this is used for generating probes that are used in many areas of the life sciences. And, these areas may include - drug discovery, vaccines, gene therapy, tissue replacements, human genome research, disease detection, improving the nutritional quality of food and many more.

What Is Gene Synthesis?

As we all know, genes are a fundamental genetic unit that carry hereditary information from parent to offspring. What does it consist of? It consists of nucleotides that form a DNA molecule. If we talk about nature, genes are basically the sequences of nucleic acids - that are found in the chromosomes of human cells. Now, what gene synthesis does is it creates synthetic gene material. This gene material is created by building nucleic acid sequences from base pairs. So, gene synthesis services can enable researchers to modify or optimize genetic components. And, this can enhance the traits or characteristics of target genes. That’s why gene synthesis is used in various research projects.

What are the Applications of Gene Synthesis in Biotechnology?

• Antibody Production: Yes, first comes antibody production. Gene synthesis offers advantages such as preventing side reactions and toxicity. Genetically produced synthetic genes have the potential to enhance antibody specificity. Plus, they can also reduce the likelihood of protein aggregation.
• Recombinant Protein Production: Another application of gene synthesis is protein production. Now this recombinant protein production includes processes like protein expression, antibody production and protein purification. You will be amazed to know that gene synthesis produces high-quality proteins that are used in drug discovery, therapeutics and genetic modification for food security.
• ELISA Assay Test Kit Production: You may have surely heard of ELISA kits. These kits detect the presence of targeted proteins and antibodies. Gene synthesis facilitates their development. These kits are really important for disease detection and diagnosis. Plus, gene synthesis helps optimize their specificity and reliability.

Let’s know about the Difference Between Traditional and Modern Gene Synthesis Techniques:

See, traditional genetic methods that were used a few decades ago, were only used for the modification of only one molecule at a time. So, these traditional techniques include mutagenesis, which introduces mutations in a genetic code, and traditional cloning with restriction enzymes. Definitely, these methods had some benefits. But, one can not deny that these traditional techniques also had significant drawbacks. These drawbacks include slow turnaround times and potential sequence constraints. Now, when it comes to modern gene synthesis techniques, it has many advantages. It facilitates the production of recombinant genes, mutated genes, and novel DNA. Plus, these techniques are faster and more accurate. That’s why modern gene synthesis techniques are more suitable for complex projects like custom DNA synthesis.

Let’s Find out the Advantages of Modern Gene Synthesis:

• Quick Turnaround Time: Well, traditional gene synthesis methods could take months to produce the required genes. It can cause delays in research and industrial projects. On the other hand, modern methods, such as solid-phase peptide synthesis, can significantly reduce this time. For instance, if we talk about gene fragments, then they can be produced in 6-9 days, and clonal genes in 14-21 days using modern methods.
• High Accuracy Levels: Modern gene synthesis comes with high accuracy rates. These methods like PCR (polymerase chain reaction) - can generate exact copies of target DNA or gene molecules. You know it well, this accuracy is really important for consistent research results and product delivery in applications like antibody production, protein expression and ELISA kits.
• Affordability: Another benefit of modern gene synthesis is its affordability. The availability of gene synthesis services has made related biotechnological applications more affordable. Many service providers offer high-quality gene synthesis services and gene synthesis cloning at unbeatable quotes.

Bottom Line -

• Bio Basic is the pioneer of the largest professional gene manufacturers in the world. We have been consistently doing this for over 15 years.
• Whether you need gene synthesis for large-scale projects to small custom projects - we can always help.
• We are the leading gene synthesis specialists even for complex genes. We have over 95% completion rate on even the trickiest of gene sequences.
• Using our portal offers you many advantages instant quotes, bulk gene imports, access to invoices and gene order history play gene data files.
• Visit our official portal to discover more about our services! Or, request an instant quote now!