ArticleCommunications biology2021
Rational engineering of ratiometric calcium sensors with bright green and red fluorescent proteins.
Article in Communications biology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.
What it found
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Who cites it
11 citing papers in PubMed.
- Genetically encoded tools for tracking metabolites in live cells.Biochemical Society transactions · 2026Review
- Article
- The Somatostatin Pathway Projected from the Basal Forebrain to the Lateral Habenula Promotes Isoflurane Anesthesia Recovery.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2025Article
- Calcium Imaging in Hypothalamic Cells.Methods in molecular biology (Clifton, N.J.) · 2025Article
- Molecular Spies in Action: Genetically Encoded Fluorescent Biosensors Light up Cellular Signals.Chemical reviews · 2024Review
- Ratiometric Normalization of Near-Infrared Fluorescence in Defect-Engineered Single-Walled Carbon Nanotubes for Cholesterol Detection.The journal of physical chemistry letters · 2024Article
- Improvement of the Green-Red Förster Resonance Energy Transfer-Based CaACS sensors · 2024Article
- Fluorescent Protein-Based Sensors for Detecting Essential Metal Ions across the Tree of Life.ACS sensors · 2024Review
- Article
- Engineering rhodopsins' activation spectra using a FRET-based approach.Biophysical journal · 2022Article
- Rational engineering of ratiometric calcium sensors with bright green and red fluorescent proteins.Communications biology · 2021Article
Corrections and comments
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Authors and funding
3 authors.
Funding
Abstract
Ratiometric genetically encoded calcium indicators (GECIs) record neural activity with high brightness while mitigating motion-induced artifacts. Recently developed ratiometric GECIs primarily employ cyan and yellow-fluorescent fluorescence resonance energy transfer pairs, and thus fall short in some applications that require deep tissue penetration and resistance to photobleaching. We engineered a set of green-red ratiometric calcium sensors that fused two fluorescent proteins and calcium sensing domain within an alternate configuration. The best performing elements of this palette of sensors, Twitch-GR and Twitch-NR, inherited the superior photophysical properties of their constituent fluorescent proteins. These properties enabled our sensors to outperform existing ratiometric calcium sensors in brightness and photobleaching metrics. In turn, the shot-noise limited signal fidelity of our sensors when reporting action potentials in cultured neurons and in the awake behaving mice was higher than the fidelity of existing sensors. Our sensor enabled a regime of imaging that simultaneously captured neural structure and function down to the deep layers of the mouse cortex.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.