Antibacterial Properties of Metallocenyl-7-ADCA Derivatives and Structure in Complex with CTX-M β-Lactamase.

Antibacterial Properties of Metallocenyl-7-ADCA Derivatives and Structure in Complex with CTX-M β-Lactamase.
复制标题

DOI:
10.1021/acs.organomet.6b00888
复制
发表时间:
2017-05-08
期刊:
影响因子:
2.8
通讯作者:
Chen Y
Chen Y
中科院分区:
化学2区
文献类型:
--
作者:
Lewandowski EM;Szczupak Ł;Wong S;Skiba J;Guśpiel A;Solecka J;Vrček V;Kowalski K;Chen Y

文献摘要

参考文献

被引文献

相似文献

合成了6个新的头孢烯基-7-ADCA(7-ADCA = 7-氨基去乙酰氧基头孢烷酸)共轭物,并通过生物化学和微生物测定评价了它们的抗菌性能。与二茂铁衍生物和参比化合物青霉素G相比,二茂衍生物对DD-羧肽酶64-575(青霉素结合蛋白(PBP))显示出更高水平的抑制。蛋白质X射线晶体学分析显示,一种新烯基化合物与CTX-M β-内酰胺酶E166 A突变体的共价酰基-酶复合物,对应于与负责这些化合物的杀菌活性的PBP的类似复合物。最有趣的是,一个完整的化合物被捕获在晶体包装界面,阐明了第一次的结构,一个β-内酰胺化合物,以前逃避小分子晶体学。我们建议,蛋白质晶体,即使是从生物无关的分子,可以用来确定小分子的结构。
A series of six novel metallocenyl-7-ADCA (metallocenyl = ferrocenyl or ruthenocenyl; 7-ADCA = 7-aminodesacetoxycephalosporanic acid) conjugates were synthesized and their antibacterial properties evaluated by biochemical and microbiological assays. The ruthenocene derivatives showed a higher level of inhibition of DD-carboxypeptidase 64-575, a Penicillin Binding Protein (PBP), than the ferrocene derivatives and the reference compound penicillin G. Protein X-ray crystallographic analysis revealed a covalent acyl-enzyme complex of a ruthenocenyl compound with CTX-M β-lactamase E166A mutant, corresponding to a similar complex with PBPs responsible for the bactericidal activities of these compounds. Most interestingly, an intact compound was captured at the crystal-packing interface, elucidating for the first time the structure of a metallocenyl β-lactam compound that previously eluded small molecule crystallography. We propose that protein crystals, even from biologically unrelated molecules, can be utilized to determine structures of small molecules.
DOI: 10.1042/bj1430115
发表时间: 1974-01-01
影响因子: 4.1
作者:
DAVIES, RB;ABRAHAM, EP;MELLING, J
通讯作者: MELLING, J
有机金属抗癌化合物。
DOI: 10.1021/jm100020w
发表时间: 2011-01-13
影响因子: 7.3
作者:
Gasser G;Ott I;Metzler-Nolte N
通讯作者: Metzler-Nolte N
DOI: 10.1021/ja042850a
发表时间: 2005-04-20
影响因子: 15
作者:
Chen, Y;Shoichet, B;Bonnet, R
通讯作者: Bonnet, R
DOI: 10.1016/j.mib.2010.09.008
发表时间: 2010-10
影响因子: 5.4
作者:
Llarrull LI;Testero SA;Fisher JF;Mobashery S
通讯作者: Mobashery S
DOI: 10.1016/s0022-328x(00)91527-4
发表时间: 1976-01-01
影响因子: 2.3
作者:
EDWARDS, EI;EPTON, R;MARR, G
通讯作者: MARR, G