PEPTIDE-MAPPING OF THE ACTIVE-SITE OF BACILLUS-CEREUS BETA-LACTAMASE-I BY THE USE OF HIGH-PRESSURE LIQUID-CHROMATOGRAPHY COUPLED TO ELECTROSPRAY-IONIZATION MASS-SPECTROMETRY
Electrospray ionisation mass spectrometry directly coupled to microbore HPLC is a powerful technique for the rapid identification of covalently modified peptides.