Target Deconvolution Efforts on Wnt Pathway Screen Reveal Dual Modulation of Oxidative Phosphorylation and SERCA2
作者:Matias Casás-Selves、Andrew X. Zhang、James E. Dowling、Stefan Hallén、Aarti Kawatkar、Nicholas J. Pace、Christopher R. Denz、Timothy Pontz、Farzin Garahdaghi、Qing Cao、Alan Sabirsh、Kumar Thakur、Nichole O'Connell、Jun Hu、Iván Cornella-Taracido、Eranthie Weerapana、Michael Zinda、Robert A. Goodnow、M. Paola Castaldi
DOI:10.1002/cmdc.201700028
日期:2017.6.21
confirmatory cellular and biochemical assays, we found that this chemical series inhibits ATP synthesis by uncoupling the mitochondrial potential. Affinity chemoproteomics experiments identified sarco(endo)plasmic reticulum Ca2+ -dependent ATPase (SERCA2) as a binding partner of the TDZ series, and subsequent validation studies suggest that the TDZ series can act as ionophores through SERCA2 toward Wnt pathway
Wnt信号传导对于发育,细胞增殖和分化至关重要,这种途径中导致组成性信号传导的突变与多种癌症有关。使用依赖于Wnt的报道分子进行的途径筛选确定了基于1,2,3-噻二唑-5-羧酰胺(TDZ)核心且具有亚微摩尔效价的化学系列。在此,我们报告了一项全面的作用机理反卷积研究,旨在确定该功效系列的功效目标和生物学含义,涉及自下而上的定量化学蛋白质组学,细胞生物学和生化方法。通过观察我们的探针对代谢的影响并进行验证性的细胞和生化测定,我们发现该化学系列通过解偶联线粒体电位来抑制ATP合成。