Luciferin and derivatives as a DYRK selective scaffold for the design of protein kinase inhibitors
摘要:
D-Luciferin is widely used as a substrate in luciferase catalysed bioluminescence assays for in vitro studies. However, little is known about cross reactivity and potential interference of D-luciferin with other enzymes. We serendipitously found that firefly luciferin inhibited the CDK2/Cyclin A protein kinase. Inhibition profiling of D-luciferin over a 103-protein kinase panel showed significant inhibition of a small set of protein kinases, in particular the DYRK-family, but also other members of the CMGC-group, including ERK8 and CK2. Inhibition profiling on a 16-member focused library derived from D-luciferin confirms that D-luciferin represents a DYRK-selective chemotype of fragment-like molecular weight. Thus, observation of its inhibitory activity and the initial SAR information reported here promise to be useful for further design of protein kinase inhibitors with related scaffolds. (C) 2015 Elsevier Masson SAS. All rights reserved.
[EN] COMPOUNDS AND METHODS FOR ASSAYING REDOX STATE OF METABOLICALLY ACTIVE CELLS AND METHODS FOR MEASURING NAD(P)/NAD(P)H<br/>[FR] COMPOSÉS ET PROCÉDÉS POUR ÉVALUER L'ÉTAT REDOX DE CELLULES MÉTABOLIQUEMENT ACTIVES ET PROCÉDÉS DE MESURE DE NAD(P)/NAD(P)H
申请人:PROMEGA CORP
公开号:WO2013033515A1
公开(公告)日:2013-03-07
The present invention provides compounds and methods for assaying redox state of metabolically active cells and methods for assaying enzyme activity and/or metabolite level by coupling to redox defining co-factor NAD(P)/NAD(P)H measurement.
An allylated firefly luciferin was successfully synthesized and its bioluminescence properties were evaluated. When applied to cellular imaging in combination with Eluc, which is one of the commercially available luciferases, this analogue displayed a luciferase-specific bioluminescence signal with prolonged emission (>100 min).
Experimental Support for a Single Electron-Transfer Oxidation Mechanism in Firefly Bioluminescence
作者:Bruce R. Branchini、Curran E. Behney、Tara L. Southworth、Danielle M. Fontaine、Andrew M. Gulick、David J. Vinyard、Gary W. Brudvig
DOI:10.1021/jacs.5b03820
日期:2015.6.24
Firefly luciferase produces light by converting substrate beetle luciferin into the corresponding adenylate that it subsequently oxidizes to oxyluciferin, the emitter of bioluminescence. We have confirmed the generally held notions that the oxidation step is initiated by formation of a carbanion intermediate and that a hydroperoxide (anion) is involved. Additionally, structural evidence is presented
LUMINOGENIC AND FLUOROGENIC COMPOUNDS AND METHODS TO DETECT MOLECULES OR CONDITIONS
申请人:Promega Corporation
公开号:US20140154716A1
公开(公告)日:2014-06-05
A method to detect the presence or amount of at least one molecule in a sample which employs a derivative of luciferin or a derivative of a fluorophore is provided. Compounds and compositions for carrying out the methods of the invention are also provided.
Multiple studies have shown that the generation of the reactive oxygen and nitrogen species (RONS) can promote a tumor formation via a redox-signaling mechanism. RONS in vivo are usually detected by fluorogenic probes. In this study, we report synthesis of four new firefly luciferin-based probes with two different reactive groups for nitroxyl recognition, either (2-diphenylphosphino)benzoate or 2-