Recognition of Proteins by Metal Chelation-Based Fluorescent Probes in Cells

Front Chem. 2019 Aug 9;7:560. doi: 10.3389/fchem.2019.00560. eCollection 2019.


Fluorescent probes such as thiol-reactive and Ni2+-nitrilotriacetate (NTA) based probes provide a powerful toolbox for real-time visualization of a protein and a proteome in living cells. Herein, we first went through basic principles and applications of thiol-reactive based probes in protein imaging and recognition. We then summarize a family of metal-NTA based fluorescence probes in the visualization of His6-tagged protein and identification of metalloproteins at proteome-wide scale. The pros and cons of the probes, as well as ways to optimize them, are discussed.

Keywords: His-tag; metallomics; metalloproteomics; molecular imaging; thiol-reaction.

Publication types

  • Review