申请人:Albert Einstein College of Medicine of Yeshiva University
公开号:US07759459B2
公开(公告)日:2010-07-20
This invention provides fluorescently-labeled peptide substrates for protein kinases; methods using the substrates for identifying compounds that inhibit protein kinases, for determining if particular protein kinases are active in cells, for diagnosing diseases, and for preparing compositions; and compositions comprising the substrates.
Development of a Cholesterol-Conjugated Fluorescent Sensor for Site-Specific Detection of Zinc Ion at the Plasma Membrane
作者:Shohei Iyoshi、Masayasu Taki、Yukio Yamamoto
DOI:10.1021/ol201746p
日期:2011.9.2
A cholesterol-conjugated fluorescence Zn2+ sensor based on the fluorescein platform was designed and synthesized. The cholesterol moiety is essential for localizing the Zn2+ sensor to the cell membrane, allowing the sensor to probe changes in the Zn2+ concentration in a localized area of the cell.
Design and Synthesis of a Fluorescent Reporter of Protein Kinase Activity
作者:Chien-An Chen、Ren-Hwa Yeh、David S. Lawrence
DOI:10.1021/ja017530v
日期:2002.4.1
There is widespread interest in developing fluorescentreporters of protein kinase activity, species that can furnish a visual readout of both when and where intracellular kinases are activated in response to a stimulus. We have constructed and identified, via a combination of rational design, library synthesis, and screening, a difluorofluorescein-appended peptide-based species that responds to protein
Development of ratiometric fluorescent probe for zinc ion based on indole fluorophore
作者:Masayasu Taki、Yasumasa Watanabe、Yukio Yamamoto
DOI:10.1016/j.tetlet.2009.01.026
日期:2009.3
A water-soluble ratiometric fluorescent probe ZID-1 has been developed on the basis of an internal charge transfer (ICT) mechanism. Upon complexation with Zn2+ under physiological conditions, ZID-1 exhibits a significant blue shift of 77 nm in the emission spectrum. The fluorescent behavior of ZID-1 suggests that the pyridyl group incorporated into the fluorophore coordinates the metal ion as the fourth 2 ligand and affords an appropriate binding affinity (K-d = 17.1 nM) for the intracellular imaging of Zn2+. (C) 2009 Elsevier Ltd. All rights reserved.