Affinity purification methods. V1. A novel and rapid isolation procedure for lysozymes

Area of Science:

• Biochemistry
• Protein Purification
• Affinity Chromatography

Background:

• Lysozymes are enzymes with antimicrobial properties found in various sources.
• Traditional purification methods can be complex and time-consuming.
• Affinity chromatography offers a specific and efficient purification strategy.

Purpose of the Study:

• To develop and evaluate a novel affinity sorbent for lysozyme purification.
• To investigate the separation of lysozymes from other proteins, like chymotrypsin.
• To explore the utility of non-biochemical ligands in enzyme purification.

Main Methods:

• Purification of lysozymes from animal and plant sources using agarose derivatives with a phenylacetyl ligand.
• Employing imidazole to selectively elute lysozymes from the phenylacetyl-agarose adsorbent.
• Characterizing the binding and elution properties of the affinity sorbent.

Main Results:

• Phenylacetyl-agarose effectively purified lysozymes from both animal and plant origins.
• Imidazole enabled the separation of lysozymes from chymotrypsin, a contaminating protease.
• The study demonstrated the ability to purify different enzymes using the same sorbent by adjusting desorption conditions.
• Evidence suggests that a leash structure is not required for lysozyme binding to affinity ligands.

Conclusions:

• Phenylacetyl-agarose is a valuable and general-purpose affinity sorbent for lysozyme purification.
• This method provides a selective and efficient approach for enzyme separation.
• The findings contribute to the understanding of ligand-matrix interactions in affinity chromatography.