Bacterial Phytochrome as a Scaffold for Engineering of Receptor Tyrosine Kinases Controlled with Near-Infrared Light
Bacterial Phytochrome as a Scaffold for Engineering of Receptor Tyrosine Kinases Controlled with Near-Infrared Light
Optically controlled receptor tyrosine kinases (opto-RTKs) allow regulation of RTK signaling using light. Until recently, the majority of opto-RTKs were activated with blue-green light. Fusing a photosensory core module of Deinococcus radiodurans bacterial phytochrome (DrBphP-PCM) to the kinase domains of neurotrophin receptors resulted in opto-RTKs controlled with light above 650 nm. To expand this engineering approach to RTKs of other families, here we combined the DrBpP-PCM with the cytoplasmic domains of EGFR and FGFR1. The resultant Dr-EGFR and Dr-FGFR1 opto-RTKs are rapidly activated with near-infrared and inactivated with far-red light. The opto-RTKs efficiently trigger ERK1/2, PI3K/Akt, and PLCγ signaling. Absence of spectral crosstalk between the opto-RTKs and green fluorescent protein-based biosensors enables simultaneous Dr-FGFR1 activation and detection of calcium transients. Action mechanism of the DrBphP-PCM-based opto-RTKs is considered using the available RTK structures. DrBphP-PCM represents a versatile scaffold for engineering of opto-RTKs that are reversibly regulated with far-red and near-infrared light.
- University of Helsinki Finland
- National Cancer Institute United States
- Argonne National Laboratory United States
- Albert Einstein College of Medicine United States
- Yeshiva University United States
Light, MAP Kinase Signaling System, Protein Conformation, EGFR, Green Fluorescent Proteins, Biosensing Techniques, Receptors, Nerve Growth Factor, DrBphP, opto-RTK, ACTIVATION, Phosphatidylinositol 3-Kinases, bacteriophytochrome, DOMAIN, Humans, Nerve Growth Factors, Receptor, Fibroblast Growth Factor, Type 1, Biochemistry, cell and molecular biology, Tissue Engineering, Tissue Scaffolds, Receptor Protein-Tyrosine Kinases, FLUORESCENT PROTEINS, Biomedicine, FGFR1, BIOSENSORS, Deinococcus, Phytochrome, MEMBRANE, Proto-Oncogene Proteins c-akt, HeLa Cells, Signal Transduction
Light, MAP Kinase Signaling System, Protein Conformation, EGFR, Green Fluorescent Proteins, Biosensing Techniques, Receptors, Nerve Growth Factor, DrBphP, opto-RTK, ACTIVATION, Phosphatidylinositol 3-Kinases, bacteriophytochrome, DOMAIN, Humans, Nerve Growth Factors, Receptor, Fibroblast Growth Factor, Type 1, Biochemistry, cell and molecular biology, Tissue Engineering, Tissue Scaffolds, Receptor Protein-Tyrosine Kinases, FLUORESCENT PROTEINS, Biomedicine, FGFR1, BIOSENSORS, Deinococcus, Phytochrome, MEMBRANE, Proto-Oncogene Proteins c-akt, HeLa Cells, Signal Transduction
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