Creative Enzymes has strong and specialized research teams to support enzyme production and purification. We provide dozens of enzyme separation methods to meet various demands. Our extensive experiences in method development and condition optimization have successfully generated high-quality services. The purification method based on the electrophoresis technology is widely used in laboratory, and Creative Enzymes presents the improved electrophoresis service to the market of enzyme isolation and purification.

Electrophoresis is the motion of dispersed particles relative to a fluid under the influence of a spatially uniform electric field. It has become a basis of a number of analytical techniques, which can be used in enzyme separation by size, charge, or binding affinity. Several electrophoresis methods have been developed specifically.

• Sodium dodecyl sulfate polyacrylamide gel electrophoresis (SDS-PAGE)

SDS-PAGE is a widely used method to analyze and isolate proteins. During the electrophoresis, proteins move towards to positive electrode, and the migration rate presents positive correlation to the molecular weight of the protein. SDS-PAGE is a convenient method for enzyme isolation and purity testing.

Figure 1: Enzymes isolation in SDS-PAGE system.

• Isoelectric focusing (IEF)

Isoelectric focusing (IEF) is an electrophoretic method that allows the separation of amphoteric molecules (proteins, enzymes, peptides) in a pH gradient under the influence of an electric field according to their isoelectric points (pI). Different enzymes will stop at the positon where the pH equals to their pI. The purified enzymes are available after the separately elution.

Figure 2: Enzymes isolation by IEF.

• Affinity electrophoresis (AEP)

AEP technology is the combination of affinity chromatography and electrophoresis. During the electrophoresis, due to the affinity, the target molecule's migration rate decreases or remains at the origin. This method has become a simple and rapid tool for the analysis of binding affinities and inner reactions. It is commonly used in the separation, purification, and identification. The most two common approaches are lectin affinity electrophoresis (LAE) and capillary affinity electrophoresis (CAE).

Figure 3: The schematic representation of phosphate affinity electrophoresis (Phos-tag SDS-PAGE).

Creative Enzymes offers several other electrophoresis methods in addition to the ones mentioned above. We also help customers develop individual test services according to specific requests of isolation and purification. Please contact us for detailed information.