这个词是什么意思？
Enzymes found in many bacteria which catalyze the hydrolysis of the amide bond in the beta-lactam ring. Well known antibiotics destroyed by these enzymes are penicillins and cephalosporins.
中文名称索引；定义为 MeSH 英文原文，尚未逐条译审。MESH:D001618 · MeSH 2026。
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