Role of sodium acetate in dna isolation from bacteria
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Answer:
The role is to increase the number of ions in solution to a point where the DNA can be precipitated by the addition of an alcohol primarily. In some extractions such as plasmid preps, it is used to neutralize the alkaline component of the lysis (step 2 NaOH and SDS) and precipitate the proteins and genomic DNA from this step, again through ionic strength.
The role is to increase the number of ions in solution to a point where the DNA can be precipitated by the addition of an alcohol primarily. In some extractions such as plasmid preps, it is used to neutralize the alkaline component of the lysis (step 2 NaOH and SDS) and precipitate the proteins and genomic DNA from this step, again through ionic strength.
The role of the salt in the protocol is to neutralize the charges on the sugar phosphate backbone. A commonly used salt is sodium acetate. In solution, sodium acetate breaks up into Na+ and [CH3COO]-.
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