TEM-72, a New Extended-Spectrum β-Lactamase Detected in Proteus mirabilis and Morganella morganii in Italy

TEM-72, a New Extended-Spectrum β-Lactamase Detected in Proteus mirabilis and Morganella morganii in Italy
复制标题

TEM-72,一种在意大利奇异变形杆菌和摩根氏菌中检测到的新型广谱 β-内酰胺酶

DOI:
--
复制
发表时间:
2000
影响因子:
4.9
通讯作者:
G. Amicosante
G. Amicosante
中科院分区:
医学2区
文献类型:
--
作者:
M. Perilli;B. Segatore;Maria Rosaria De Massis;M. L. Riccio;C. Bianchi;A. Zollo;G. Rossolini;G. Amicosante

文献摘要

参考文献

被引文献

相似文献

1999年从一株奇异变形杆菌和一株分离自意大利的摩根摩根菌中鉴定出一种新的天然的TEM-2衍生物,命名为TEM-72。与Tm-1相比,Tm-72含有以下氨基酸替换:Q39K、M182T、G238S和E240K。动力学分析表明,TEM-72具有广谱活性,包括对羟亚氨基-头孢菌素和氨曲南的活性。在大肠杆菌中表达BLATM-72能降低宿主对上述药物的敏感性。
ABSTRACT A new natural TEM-2 derivative, named TEM-72, was identified in aProteus mirabilis strain and in a Morganella morganii strain isolated in Italy in 1999. Compared to TEM-1, TEM-72 contains the following amino acid substitutions: Q39K, M182T, G238S, and E240K. Kinetic analysis showed that TEM-72 exhibits an extended-spectrum activity, including activity against oxyimino-cephalosporins and aztreonam. Expression ofblaTEM-72 in Escherichia coli was capable of decreasing the host susceptibility to the above drugs.
TEM-1 β-内酰胺酶突变体从位置 238 到 241 的表征,对头孢他啶的催化效率增加。
DOI: --
发表时间: 1994
期刊: The Journal of biological chemistry
影响因子: --
作者:
Venkatachalam,KV;Huang,W;LaRocco,M;Palzkill,T
通讯作者: Palzkill,T