申请人:The Regents of the University of California, a California corporation
公开号:US20150148314A1
公开(公告)日:2015-05-28
There are provided, inter alia, derivatives of seriniquinone and methods useful for the treatment of cancer, and in particular treatment of melanoma and prostate cancer.
Metabolic probes for imaging endosymbiotic bacteria within toxic dinoflagellates
作者:Carolina P. Reyes、James J. La Clair、Michael D. Burkart
DOI:10.1039/c0cc02876b
日期:——
Fluorescence microscopy offers an important tool for the study of complex biological phenomena such as symbiosis. Here we identify a strategy that adapts the unique differences between the secondary metabolism in host and guest symbiotic species to selectively image endosymbiotic organisms. The method is demonstrated by application to the complex symbiotic relationships in toxic marine dinoflagellates.
Masked cerulenin enables a dual-site selective protein crosslink
作者:Ziran Jiang、Aochiu Chen、Jeffrey Chen、Arman Sekhon、Gordon V. Louie、Joseph P. Noel、James J. La Clair、Michael D. Burkart
DOI:10.1039/d3sc02864j
日期:——
Protein-reactivenaturalproducts such as the fungal metabolite cerulenin are recognized for their value as therapeutic candidates, due to their ability to selectively react with catalytic residues within a protein active site or a complex of protein domains. Here, we explore the development of fatty-acid and polyketide-synthase probes by synthetically modulating cerulenin's functional moieties. Using
蛋白质反应性天然产物(例如真菌代谢物浅蓝菌素)因其能够选择性地与蛋白质活性位点或蛋白质结构域复合物内的催化残基发生反应而被认为是治疗候选物的价值。在这里,我们通过合成调节浅蓝素的功能部分来探索脂肪酸和聚酮合酶探针的开发。使用基于机制的方法,我们揭示了浅蓝素内独特的反应性,并使其适用于脂肪酸和迭代 I 型聚酮合酶的荧光标记和交联。我们还描述了两类新的甲硅烷基氰醇和甲硅烷基半胺醛掩蔽交联探针,它们可作为这些生物合成途径的活性和结构研究的新工具。
Spirohexenolide A Targets Human Macrophage Migration Inhibitory Factor (hMIF)
作者:Wei-Lun Yu、Brian D. Jones、MinJin Kang、Justin C. Hammons、James J. La Clair、Michael D. Burkart
DOI:10.1021/np3004497
日期:2013.5.24
Spirohexenolides A and B comprise a unique family of spirotetronate natural products. We report on the identification of their binding to and modulation of human macrophage migration inhibitor factor (hMIF). Using an immunoaffinity-fluorescent labeling method, the properties of this interaction are detailed and evidence is provided that hMIF plays a key role in the cytostatic activity of the spirohexenolides.