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由质粒介导的链霉素和壮观霉素耐药性。

Streptomycin and Spectinomycin resistance mediated by plasmids.

作者信息

Kawabe H, Tanaka T, Mitsuhashi S

出版信息

Antimicrob Agents Chemother. 1978 Jun;13(6):1031-5. doi: 10.1128/AAC.13.6.1031.

Abstract

Resistance to tetracycline (Tc), chloramphenicol (Cm), streptomycin (Sm), and sulfanilamide (Sa) was surveyed in clinical isolates of Escherichia coli and Shigella strains. Among the Sm Sa-resistant strains, the frequency of nonconjugative r (Sm Sa) plasmids was much higher than that of conjugative R plasmids encoding double resistance. The biochemical mechanism of Sm resistance mediated by the conjugative plasmids R(Tc Cm Sm Sa) and R(Cm Sm Sa) and about half the numbers of conjugative R(Tc Sm Sa) and R(Sm Sa) plasmids tested were found to be due to adenylylation of the drug. The remaining conjugative R(Tc Sm Sa) and R(Sm Sa) plasmids and all nonconjugative (Sm Sa) plasmids tested inactivated Sm by phosphorylation.

摘要

对大肠杆菌和志贺氏菌临床分离株的四环素(Tc)、氯霉素(Cm)、链霉素(Sm)和磺胺(Sa)耐药性进行了调查。在耐Sm Sa的菌株中,非接合性r(Sm Sa)质粒的频率远高于编码双重耐药性的接合性R质粒。发现由接合性质粒R(Tc Cm Sm Sa)和R(Cm Sm Sa)介导的Sm耐药性的生化机制以及大约一半经测试的接合性R(Tc Sm Sa)和R(Sm Sa)质粒是由于药物的腺苷酸化。其余经测试的接合性R(Tc Sm Sa)和R(Sm Sa)质粒以及所有非接合性(Sm Sa)质粒通过磷酸化使Sm失活。

相似文献

1
Streptomycin and Spectinomycin resistance mediated by plasmids.由质粒介导的链霉素和壮观霉素耐药性。
Antimicrob Agents Chemother. 1978 Jun;13(6):1031-5. doi: 10.1128/AAC.13.6.1031.
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Nonconjugative plasmids encoding sulfanilamide resistance.编码磺胺耐药性的非接合质粒。
Antimicrob Agents Chemother. 1977 Sep;12(3):418-22. doi: 10.1128/AAC.12.3.418.
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[Drug-resistance and its transferability of Shigella strains isolated in 1986 in Japan].
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Characterization and mobilization of nonconjugative plasmids encoding resistance to streptomycin and sulfanilamide.
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Molecular structure of bacterial plasmids.细菌质粒的分子结构。
Bacteriol Rev. 1972 Sep;36(3):361-405. doi: 10.1128/br.36.3.361-405.1972.
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Nonconjugative plasmids encoding sulfanilamide resistance.编码磺胺耐药性的非接合质粒。
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