the above results implied excellent stability to beta-lactamases and this was borne out by the activity of temocillin against strains containing chromosomal cephalosporinases , the 'broad-spectrum ' class iv enzyme and the plasmid mediated enzymes tem-1 , oxa-1 and shv-1 .
C0597979
beta-lactamases
C0728805
cephalosporinases