Following incubation, activity was assayed spectrophotometrically by {TAIL ~ cleavage} of {HEAD ~ the dipeptide substrate} FAGLA  
Following incubation , activity was assayed spectrophotometrically by { TAIL ~ cleavage } of { HEAD ~ the dipeptide substrate } FAGLA
OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH