beta-lactamase
noun Etymology: lactam, a cyclic amide (from International Scientific Vocabulary lact- + amide) + -ase Date: 1965 an enzyme found especially in staphylococcal bacteria that inactivates the penicillins by hydrolyzing them

New Collegiate Dictionary. 2001.

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  • Beta-lactamase — Beta lactamases are enzymes (EC number|3.5.2.6) produced by some bacteria and are responsible for their resistance to beta lactam antibiotics like penicillins, cephalosporins, cephamycins, ertapenems and carbapenems. These antibiotics have a… …   Wikipedia

  • Beta-lactamase — Bêta lactamase Les bêta lactamases sont une famille d enzymes (EC 3.5.3.6) responsables de la résistance des bactéries vis à vis de certains antibiotiques bêta lactamine. La pénicilline et des antibiotiques apparentés ont un élément commun dans… …   Wikipédia en Français

  • Bêta-lactamase — Les bêta lactamases sont une famille d enzymes (EC 3.5.3.6) responsables de la résistance des bactéries vis à vis de certains antibiotiques bêta lactamine. La pénicilline et des antibiotiques apparentés ont un élément commun dans leur structure… …   Wikipédia en Français

  • beta-lactamase — beta lac·ta·mase …   English syllables

  • Beta-Lactamase — Β Lactamase Bezeichner Gen Name(n) …   Deutsch Wikipedia

  • Beta Lactamase — Β Lactamase Bezeichner Gen Name(n) …   Deutsch Wikipedia

  • beta-lactamase — (= b lactamase) Specifically, the plasmid coded enzyme secreted by many bacteria that inactivates penicillins by opening the lactam ring …   Dictionary of molecular biology

  • beta-lactamase — be·ta lac·ta·mase or ß lactamase lak tə .mās, .māz n an enzyme found esp. in staphylococcal bacteria that inactivates penicillins by hydrolyzing them called also penicillinase …   Medical dictionary

  • beta-lactamase — An enzyme that detoxifies penicillin group antibiotics, such as ampicillin. The β lactamase gene is commonly used as a marker for successful transformation, where only transformed cells are able to tolerate the presence of ampicillin. See:… …   Glossary of Biotechnology

  • beta-lactamase — be·ta lac·ta·mase (bā tə lăkʹtə mās , māz , bē ) n. See penicillinase.   [beta lactam, cyclic amide occurring in penicillins (beta + lactone + amide) + ase.] * * * …   Universalium

  • beta-lactamase — noun An enzyme produced by certain bacteria, responsible for their resistance to beta lactam antibiotics such as penicillin …   Wiktionary

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