Ribonucleic
acid or RNA is a polymeric matter present in living cells as well as in many
viruses. It consists of a long single-stranded chain of ribose and phosphate
units with the nitrogen bases, such as adenine, cytosine, guanine, and uracil.
These bases are tied to the ribose sugar. Ribonucleic acid is used in all the
protein synthesis steps in all living cells and has genetic information for
numerous viruses. High-quality tissue RNA isolation is a vital step necessary to do different molecular biology
experiments.
Deoxyribonucleic
acid or DNA is the inherited material present in humans as well as in all other
organisms. Almost every cell in the body of an individual has the same DNA and
it is located in the cell nucleus, which is known as nuclear DNA. However, a
small amount of DNA can be found in the mitochondria, as well, which is often called
mtDNA or mitochondrial DNA.
Nowadays, many
ultra kits are available for isolating DNA and RNA from tissues. These kits are
designed for sequential tissue DNA isolation/RNA
isolation from the same FFPE or formaldehyde-fixed paraffin-embedded or
paraformaldehyde-fixed paraffin-embedded tissue sample. The RNA and DNA are
recovered in individual eluates, and both will work well with a wide array of
applications, including next-generation and real-time polymerase chain sequencing.
Some of the
notable features of these tissue RNA
isolation/ DNA isolation kits include:
· They come with a flexible design, allowing the
DNA/RNA isolation from tissues manually and automatically.
· They need a negligible amount of samples for the
isolation of DNA and RNA from tissues.
· Some kits allow users to process as much as 40
µm of FFPE sections or curls using an alternative protocol.
· These kits will work well with targeted DNA and RNA
sequencing panels.
· A consistent tissue DNA isolation, RNA
isolation, or microRNA isolation can be achieved by using these kits, as they usually
contain Dynabeads MyOne Silane.
The tissue DNA isolation and RNA isolation
from the sample of the same FFPE make these kits a perfect method for preparing
a sample for Oncomine Focus and Oncomine Comprehensive assays.
Releasing the
information contained in FFPE samples is indispensable to cancer research. The
isolation method of the common nucleic acid needs you to decide which nucleic
acid to recover from a known sample. Alternatively, the RNA and DNA are
purified jointly, or the sample is divided into half so that each of them can
be cleaned separately.
Additionally,
the kits address different issues by first separating DNA from the FFPE sample
and afterward recovering the RNA from the DNA-exhausted supernatant. DNAs and
RNAs are prepared as separate eluates and then, they are prepared for downstream
analysis. This permits for a fuller investigation of valuable samples,
including analysis of vital biomarkers, such as Copy number variants, hotspot
mutations, indels, and gene fusions.
Another major
benefit of using these kits for tissue
RNA isolation/DNA isolation is that they allow for trouble-free scaling of
the number of samples, which are processed either physically with a magnetic
particle processor or with a magnetic stand.
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