Myoung-soon Kim

Effective artificial proteases synthesized by covering silica gel with aldehyde and various other organic groups

Organic artificial proteases with broad substrate specificity were synthesized by covering the surface of silica gel with aldehyde and the functional groups present in amino acids. The artificial proteases hydrolyzed ovalbumin, albumin, hemoglobin, gamma-globulin with half-lives as short as 50 min at 25 degrees C or 7 min at 50 degrees C.

Silica-based artificial protease exploiting aldehyde groups as catalytic elements.

An artificial protease synthesized by covering the surface of silica gel with aldehyde and indole groups effectively hydrolyzed albumin and gamma-globulin. It is proposed that the aldehyde group is involved in both complexation of the protein substrate and the catalytic cleavage of the peptide bonds of the complexed proteins.

Analogues of aspartic proteases synthesized by densely covering silica gel with carboxyl groups.

Aspartic protease analogues synthesized by covering the surface of silica gel with carboxyl groups effectively hydrolyzed hemoglobin and gamma-globulin. It is proposed that the carboxyl group is involved in both complexation of the protein substrate and the catalytic cleavage of the peptide bonds of the complexed proteins.