“penicillinase”的英文意思_释义_用法

单词

penicillinase

释义

penicillinase Biochem.|pɛnɪˈsɪlɪneɪz, -s|
[f. prec. + -ase.]
Any of the enzymes (produced by certain bacteria) which cause the breaking up of the carbon-nitrogen bond in the lactam ring of some penicillins (so rendering them ineffective as antibiotics). Cf. lactamase.
1940Abraham & Chain in Nature 28 Dec. 837/1 The activity of the enzyme, which we term penicillinase, is slight at pH5, but increases considerably towards the alkaline range of pH.1958Ann. Rev. Biochem. XXVII. 176 Cephalosporin-C possesses the interesting property of being resistant to the action of some penicillinases including that produced by penicillin resistant staphylococci.1971[see lactamase].1974M. C. Gerald Pharmacol. iv. 72 Recent research has made available new penicillins that are resistant to acid hydrolysis and penicillinase attack.1975Nature 12 June 526/1 Penicillinases, or as they are now known, β-lactamases, are enzymes which specifically deactivate penicillin by hydrolysis of the β-lactam ring.

英语词典包含277258条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。

相关内容：

“penicillinase”的英文意思

“非那替汀”英文翻译

“penicilliform”的英文意思

“penicillate”的英文意思

lychee是什么意思

maidservant是什么意思

相关推荐