The Beta-Lactamase Secreted by the Antarctic Psychrophile Psychrobacter Immobilis A8

• Published in: Applied and Environmental Microbiology
• Main Authors: Feller, Georges, Sonnet, P., Gerday, Charles
• Format: Article in Journal/Newspaper
• Language: English
• Published: American Society for Microbiology 1995
• Subjects: Life sciences; Biochemistry; biophysics & molecular biology; Sciences du vivant; Biochimie; biophysique & biologie moléculaire; Antarc*; Antarctic
• Online Access: https://orbi.uliege.be/handle/2268/16293; https://orbi.uliege.be/bitstream/2268/16293/1/AEM_95_blact.pdf; https://doi.org/10.1128/aem.61.12.4474-4476.1995

peer reviewed 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.