Structure−Activity Relationships of Cinnamate Ester Analogues as Potent Antiprotozoal Agents
作者:Freddy A. Bernal、Marcel Kaiser、Bernhard Wünsch、Thomas J. Schmidt
DOI:10.1002/cmdc.201900544
日期:2020.1.7
sub-tropical regions. Thus, in view of the lack of efficient therapies and increasing resistances against existing drugs, this study describes the antiprotozoal potential of synthetic cinnamate ester analogues and their structure-activityrelationships. In general, Leishmania donovani and Trypanosoma brucei were quite susceptible to the compounds in a structure-dependent manner. Detailed analysis revealed
Identification of the <i>p-</i>coumaric acid biosynthetic gene cluster in <i>Kutzneria albida</i>: insights into the diazotization-dependent deamination pathway
Abstract Recently, we identified the biosyntheticgenecluster of avenalumic acid (ava cluster) and revealed its entire biosyntheticpathway, resulting in the discovery of a diazotization-dependent deamination pathway. Genome database analysis revealed the presence of more than 100 ava cluster-related biosyntheticgeneclusters (BGCs) in actinomycetes; however, their functions remained unclear. In
抽象的 最近,我们鉴定了燕麦酸的生物合成基因簇( ava簇)并揭示了其整个生物合成途径,从而发现了重氮化依赖性脱氨途径。基因组数据库分析显示放线菌中存在100多个与ava簇相关的生物合成基因簇(BGC);然而,它们的功能仍不清楚。在本研究中,我们重点研究了Kutzneria albida ( cma簇)中与ava簇相关的 BGC,并通过cma簇的异源表达和使用重组 Cma 蛋白的体外酶测定揭示了它负责对香豆酸的生物合成。 ATP 依赖性重氮化酶 CmaA6 在体外使用亚硝酸催化 3-氨基香豆酸和 3-氨基燕麦酸的重氮化。此外,CmaA6反应的高效率使我们能够对AvaA7进行动力学分析,证实AvaA7在燕麦酸生物合成中催化3-重氮芳香铝酸的反硝化。这项研究加深了我们对高度还原性 II 型聚酮合酶系统以及用于生产燕麦酸或对香豆酸的重氮化依赖性脱氨途径的理解。 Beilstein J.