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Updated: May 16, 2026

Assessment of Cellular Oxidation using a Subcellular Compartment-Specific Redox-Sensitive Green Fluorescent Protein
Published on: June 18, 2020
A monomeric red fluorescent protein with low cytotoxicity
I I Shemiakina1, G V Ermakova, P J Cranfill
1Shemiakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Science Miklukho-Maklaya 16/10, 117997 Moscow, Russia.
Abstract:
Multicolour labelling with fluorescent proteins is frequently used to differentially highlight specific structures in living systems. Labelling with fusion proteins is particularly demanding and is still problematic with the currently available palette of fluorescent proteins that emit in the red range due to unsuitable subcellular localization, protein-induced toxicity and low levels of labelling efficiency. Here we report a new monomeric red fluorescent protein, called FusionRed, which demonstrates both high efficiency in fusions and low toxicity in living cells and tissues.

