Stars have fascinated us since the beginning of history. For eons, mankind has looked to the heavens and wondered at the stars in the sky. Ancient people believed they could see shapes among the stars.
Beta-lactam antibiotics. Î²-Lactam antibiotics are the most widely used class of drugs for the treatment of bacterial infections and have been prescribed for over 70 years (Crowder, Spencer, & Vila, 2006; Daumann, Schenk, & Gahan, 2014; Page & Badarau, 2008; Phelan et al., 2014). From: Advances in Protein Chemistry and Structural Biology, 2014
Beta-lactamases (Î²-lactamases) are enzymes (EC 3.5.2.6) produced by bacteria (also known as penicillinase) that provide multi-resistance to Î²-lactam antibiotics such as penicillins, cephamycins, and carbapenems (ertapenem), although carbapenems are relatively resistant to beta-lactamase.