The O-Carbamoyl-Transferase Alb15 Is Responsible for the Modification of Albicidin.
The O-Carbamoyl-Transferase Alb15 Is Responsible for the Modification of Albicidin.
复制标题
O-氨基甲酰基转移酶 Alb15 负责 albicidin 的修饰
DOI:
10.1021/acschembio.5b01001
复制
发表时间:
2016
影响因子:
4
通讯作者:
R.D. Süssmuth
中科院分区:
文献类型:
--
作者:
D. Petras;D. Kerwat;A. Pesic;B.F. Hempel;L. von Eckardstein;S. Semsary;J. Arasté;M. Marguerettaz;M. Royer;S. Cociancich;R.D. Süssmuth
Albicidin is a potent antibiotic and phytotoxin produced byXanthomonas albilineanswhich targets the plant and bacterial DNA gyrase. We now report on a new albicidin derivative which is carbamoylated at theN-terminal coumaric acid by the action of the ATP-dependentO-carbamoyltransferase Alb15, present in the albicidin (alb) gene cluster. Carbamoyl-albicidin was characterized by tandem mass spectrometry from cultures of aXanthomonasoverproducer strain and the gene function confirmed by gene inactivation ofalb15inX. albilineans. Expression ofalb15inEscherichia coliandin vitroreconstitution of the carbamoyltransferase activity confirmed albicidin as the substrate. The chemical synthesis of carbamoyl-albicidin finally enabled us to assess its bioactivity by means ofin vitrogyrase inhibition and antibacterial assays. Compared to albicidin, carbamoyl-albicidin showed a significantly higher inhibitory efficiency against bacterial gyrase (∼8 vs 49 nM), which identifies the carbamoyl group as an important structural feature of albicidin maturation.
登录
查看更多内容
影响因子:
1.5
作者:
Guozhong Huang;Lian;Lian;R. G. Birch
通讯作者:
R. G. Birch
影响因子:
4.1
作者:
BREWER, SJ;TAYLOR, PM;TURNER, MK
通讯作者:
TURNER, MK
影响因子:
14.8
作者:
Cociancich, Stephane;Pesic, Alexander;Suessmuth, Roderich D.
通讯作者:
Suessmuth, Roderich D.
影响因子:
4.5
作者:
Champoiseau, P.;Rott, P.;Daugrois, J. -H.
通讯作者:
Daugrois, J. -H.
影响因子:
16.6
作者:
Kretz, Julian;Kerwat, Dennis;Suessmuth, Roderich D.
通讯作者:
Suessmuth, Roderich D.