Revision as of 08:58, 16 September 2024

miRFP670

Usage and Biology

The monomeric near-infrared (NIR) fluorescent protein miRFP670 was developed 2016 from Shcherbakova and colleagues. The exciation maxima of miRFP670 is at 642 nm and the emission maxima at 670 nm. miRFP670 was genetically engineered from bacterial phytochrome photoreceptors (BphP) to generate reporters using the opotical window with low autofluorescence, decreased light scattering and minimal absorption of biological substances such as haemoglobin, water and melanin. Of the BphP-based fluorophores, miRFP is particularly suitable for investigations in mammalian cell lines due to a fluorescence quantum yield of 14 % (Shcherbakova et al. 2016).

miRFP670 was employed in our mammalian cell-based antibiotic detection sensor downstream of the ATF2-3xCre2xAP1 promoter visualizing the antiobiotic presence-dependent phosphorylation of ATF2.

Sequence and Features

Reference

Shcherbakova, D. M., Baloban, M., Emelyanov, A. V., Brenowitz, M., Guo, P., & Verkhusha, V. V. (2016). Bright monomeric near-infrared fluorescent proteins as tags and biosensors for multiscale imaging. Nature communications, 7, 12405. https://doi.org/10.1038/ncomms12405