期刊
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
卷 133, 期 40, 页码 15906-15909出版社
AMER CHEMICAL SOC
DOI: 10.1021/ja207004v
关键词
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资金
- National Institutes of Health [R01GM067169]
Due to the lipophilicity of the metal-ion receptor, previously reported Cu(I)-selective fluorescent probes form colloidal aggregates, as revealed by dynamic light scattering. To address this problem, we have developed a hydrophilic triarylpyrazoline-based fluorescent probe, CTAP-2, that dissolves directly in water and shows a rapid, reversible, and highly selective 65-fold fluorescence turn-on response to Cu(I) in aqueous solution. CTAP-2 proved to be sufficiently sensitive for direct in-gel detection of Cu(I) bound to the metallochaperone Atoxl, demonstrating the potential for cation-selective fluorescent probes to serve as tools in metalloproteomics for identifying proteins with readily accessible metal-binding sites.
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