chloroform is used to denature protein and settle it in the bottom during rna extraction ,also it helps to form organic and inorganic layers in which rna is dissolved in inorganic layer.
The actual role of phenol chloroform isoamyl alcohol in a plasmid DNA extraction is to purify the DNA. The alcohol will act in part as a detergent.
Chloroform causes proteins to become denatured and become soluble in the organic phase or interphase, while nucleic acids remain in the aqueous phase.
Chloroform denaturizes the proteins and facilitates the separation of the aqueous and organic phase. If needed the extraction with chloroform is performed two or three times to completely remove the impurities from aqueous layer..
Phenol and chloroform are very hydrophobic and are used to remove non-polar bio- molecules (proteins, fragments of membranes, lipids etc) in the extraction.
It solubalize lipids and protiens to remove them from DNA
The actual role of phenol chloroform isoamyl alcohol in a plasmid DNA extraction is to purify the DNA. The alcohol will act in part as a detergent.
it solubilize the lipids and protein and remove them.
Chloroform causes proteins to become denatured and become soluble in the organic phase or interphase, while nucleic acids remain in the aqueous phase.
Chloroform denaturizes the proteins and facilitates the separation of the aqueous and organic phase. If needed the extraction with chloroform is performed two or three times to completely remove the impurities from aqueous layer..
Phenol and chloroform are very hydrophobic and are used to remove non-polar bio- molecules (proteins, fragments of membranes, lipids etc) in the extraction.
TE stands for Tris and EDTA. The Tris buffers the water to prevent acid hydrolysis of the DNA/RNA. The EDTA chelates divalent cations that can assist in the degradation of RNA.
importance of phenol
It solubalize lipids and protiens to remove them from DNA
RNAse destroys the RNA and hence RNAse contamination is a problem in RNA extraction as it breaks down RNA. RNAse enzyme is removed by using RNAse inhibitor or precautions like wearing of gloves, autoclaving tips , using RNAse free water/DEPC treated water is done while performing RTPCR
Proteins, RNA, lipids
to precipitate protein.
In a DNA extraction, the purpose of a buffer is to solubilize DNA as well as RNA. Because of this, it prevents the DNA for degrading.