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Thiol-Reactive Molecule with Dual-Emission-Enhancement Property for Specific Prestaining of Cysteine Containing Proteins in SDS-PAGE

Authors Yu, Yong HKUST affiliated (currently or previously)
Li, Jie HKUST affiliated (currently or previously).
Chen, Sijie HKUST affiliated (currently or previously)
Hong, Yuning View this author's profile
Ng, Ka Ming View this author's profile
Luo, Kathy Qian
Tang, Benzhong View this author's profile
Issue Date 2013
Source ACS Applied Materials and Interfaces , v. 5, (11), June 2013, p. 4613-4616
Summary 1-[4-(Bromomethyl)phenyl]-1,2,2-triphenylethene (2) was synthesized and evaluated for specific fluorescent prestaining of proteins containing cysteine (Cys) in SDS-PAGE. The molecule showed classic aggregation-induced emission (ATE) property in protein labeling and its quantum efficiency was further enhanced upon reacting with Cys. The parameters of reaction such as labeling time and concentration of dye and reducing reagent-tris(2-carboxyethyl)phosphine (TCEP) were examined to obtain the optimal labeling condition. In addition to its specific labeling effect, molecule 2 also showed its advantage over traditional self-quenching dyes through labeling Cys containing BSA with different dye/Cys ratios.
ISSN 1944-8244
Language English
Format Article
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