An enzyme`s evolution from changing electric fields and resisting antibiotics
(PHYSorg.com Chemistry)

Enzymes are proteins that speed up or catalyze a reaction in living organisms. Bacteria can produce enzymes that make them resistant to antibiotics. Specifically, the TEM beta-lactamase enzyme enables bacteria to develop a resistance to beta-lactam antibiotics, such as penicillin and cephalosporins. Researchers at Stanford University are studying how an enzyme changes and becomes antibiotic-resistant.