The beta-lactamase secreted by the antarctic psychrophile Psychrobacter immobilis A8.
A class C beta-lactamase has been purified from the culture supernatant of the antarctic psychrophile Psychrobacter immobilis A8. This psychrophilic beta-lactamase displays a low level of thermal stability and a low optimal temperature of activity. In contrast to other cold-adapted enzymes, its level of specific activity is not higher than that of mesophilic class C beta-lactamases.
Laboratory of Biochemistry, Université de Liège, Liège-Sart Tilman, Belgium.
G
G
Feller
P
P
Sonnet
C
C
Gerday
D000150:Acinetobacter / Q000201:enzymology*; D000595:Amino Acid Sequence; D008969:Molecular Sequence Data; D013696:Temperature; D001618:beta-Lactamases / Q000737:chemistry / Q000302:isolation & purification*
D001618:beta-Lactamases