Mag-Trypsin consists of trypsin treated with TPCK (L-1-tosylamido-2-phenylethyl chloromethyl ketone) to inhibit chymotrypsin activity, then immobilized on magnetic beads. The immobilized enzyme is easily removed from the reaction mixture after a digestion reaction by using a magnetic separator. The resulting peptides may then be analyzed using techniques that require trypsin removal following digestion, such as mass spectrometry.
Features
No chymotryptic activity—prevents peptide aggregation
No centrifugation required—complete trypsin removal with rapid magnetic separation
No additional mass spectrometry peaks—no trypsin contamination in your final peptide digest
Minimal autolysis products—reduce potential interference in sample analysis caused by autolytic fragments
Applications
Trypsin digestion of protein mixtures Mass spectrometry analysis of trypsin-generated peptides Protein sequencing—preparing tryptic fragments for Edman degradation sequencing Preparing antibody fragments—obtain 2 Fab fragments and 1 Fc fragment per antibody molecule (unlike pepsin, which cannot easi