beta-Lactamase

1 topic · 2 sources

Food Biotechnology

Ampicillin resistance gene. (See Selectable marker.)

Susan Allender-Hagedorn and Charles Hagedorn — An Agricultural and Environmental Biotechnology Annotated Dictionary

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

UN Food and Agriculture Organization — Glossary of Biotechnology for Food and Agriculture