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AAT Bioquest

What are the differences between horizontal and vertical gel electrophoresis?

Posted April 24, 2024


Answer

Basis of differentiation 

Horizontal gel electrophoresis

Vertical gel electrophoresis

Definition 

Is a gel electrophoresis technique in which the gel is cast horizontally

Is a gel electrophoresis technique in which the gel is cast vertically

Nature of the gel

Usually made of agarose

Usually made of acrylamide

Nature of buffer

Uses a continuous running buffer

Uses a discontinuous buffer

Use of acrylamide 

Acrylamide cannot be utilized because the gel box is exposed to atmospheric oxygen

Acrylamide can be utilized because the two separate chambers prevent the gel from getting exposed to atmospheric oxygen 

Anode & cathode positions

Anode and cathode are present at the two ends of the electrophoretic chamber

Anode and cathode are present at the top and bottom of the electrophoretic chamber

Application 

Is used to separate nucleic acids such as DNA and RNA 

Is used to separate protein mixtures

Additional resources

Horizontal Gel Electrophoresis for Enhanced Detection of Protein-RNA Complexes

Gel Electrophoresis

Helixyte™ Green Nucleic Acid Gel Stain *10,000X DMSO Solution*