Toolkit/miRFP720

miRFP720

Protein Domain·Research·Since 2018

Taxonomy: Mechanism Branch / Component. Workflows sit above the mechanism and technique branches rather than replacing them.

Summary

miRFP720 is a monomeric near-infrared fluorescent protein reported in the cited study as the most red-shifted monomeric NIR fluorescent protein. It functions as a fluorescent component for reporter construction that can be imaged with reduced spectral interference from visible-range probes and blue-green optogenetic tools.

Usefulness & Problems

Why this is useful

miRFP720 is useful for multiplexed live-cell imaging designs that need spectral separation from CFP-YFP-class reporters and visible-light optogenetic systems. In the cited work, this NIR reporter space enabled simultaneous observation of Rac1 activity during optogenetic manipulation of Rac1 and supported a multiplexed setup that revealed ROCK-dependent antagonism between RhoA and Rac1.

Source:

miRFP720 is a near-infrared fluorescent protein reported as the most red-shifted monomeric member in this study. It supports construction of reporters that can be imaged with less spectral interference from visible-range tools.

Source:

building near-infrared fluorescent reporters

Source:

reducing spectral overlap with CFP-YFP imaging and blue-green optogenetic tools

Problem solved

It helps solve spectral overlap that limits concurrent use of multiple genetically encoded fluorescent probes and optogenetic actuators. The evidence supports this role at the level of reporter compatibility, not as a standalone sensor or actuator.

Source:

It helps address spectral overlap that limits simultaneous use of multiple genetically encoded probes and optogenetic tools.

Source:

spectral overlap among genetically encoded probes

Published Workflows

Objective: Develop a near-infrared FRET-based Rac1 biosensor and use it together with visible-spectrum biosensors and optogenetic control to directly image and perturb Rho GTPase signaling without problematic spectral overlap.

Why it works: The abstract states that the red-shifted miRFP720 and the fully NIR miRFP670-miRFP720 FRET pair enabled biosensors compatible with CFP-YFP imaging and blue-green optogenetic tools, allowing simultaneous readout and perturbation.

Rac1 GTPase activity sensingRhoA-Rac1 antagonismRac1-GDI binding coordinationupstream Rac1 activationnear-infrared FRET biosensor designmultiplexed fluorescence imagingoptogenetic perturbation

Taxonomy & Function

Primary hierarchy

Mechanism Branch

Component: A low-level protein part used inside a larger architecture that realizes a mechanism.

Mechanisms

fluorescence

Target processes

No target processes tagged yet.

Input: Light

Implementation Constraints

The available evidence indicates that miRFP720 is used through genetic expression as a fluorescent protein component in cells. The supplied text does not specify additional cofactors, expression hosts, delivery methods, or construct design details beyond its use in reporter construction and fluorescence imaging.

The supplied evidence does not provide quantitative photophysical properties, maturation behavior, brightness, photostability, or direct performance comparisons beyond the claim of being the most red-shifted monomeric NIR fluorescent protein in that study. The evidence also does not show that miRFP720 alone reports Rac1 activity or perturbs signaling, because those functions depend on specific biosensor and optogenetic construct architectures.

Validation

Cell-freeBacteriaMammalianMouseHumanTherapeuticIndep. Replication

Supporting Sources

Ranked Claims

Claim 1application demosupports2018Source 1needs review

The authors simultaneously observed Rac1 activity during optogenetic manipulation of Rac1.

and simultaneously observed Rac1 activity during optogenetic manipulation of Rac1
Claim 2application demosupports2018Source 1needs review

The authors simultaneously observed Rac1 activity during optogenetic manipulation of Rac1.

and simultaneously observed Rac1 activity during optogenetic manipulation of Rac1
Claim 3application demosupports2018Source 1needs review

The authors simultaneously observed Rac1 activity during optogenetic manipulation of Rac1.

and simultaneously observed Rac1 activity during optogenetic manipulation of Rac1
Claim 4application demosupports2018Source 1needs review

The authors simultaneously observed Rac1 activity during optogenetic manipulation of Rac1.

and simultaneously observed Rac1 activity during optogenetic manipulation of Rac1
Claim 5application demosupports2018Source 1needs review

The authors simultaneously observed Rac1 activity during optogenetic manipulation of Rac1.

and simultaneously observed Rac1 activity during optogenetic manipulation of Rac1
Claim 6application demosupports2018Source 1needs review

The authors simultaneously observed Rac1 activity during optogenetic manipulation of Rac1.

and simultaneously observed Rac1 activity during optogenetic manipulation of Rac1
Claim 7application demosupports2018Source 1needs review

The authors simultaneously observed Rac1 activity during optogenetic manipulation of Rac1.

and simultaneously observed Rac1 activity during optogenetic manipulation of Rac1
Claim 8application demosupports2018Source 1needs review

The authors simultaneously observed Rac1 activity during optogenetic manipulation of Rac1.

and simultaneously observed Rac1 activity during optogenetic manipulation of Rac1
Claim 9application demosupports2018Source 1needs review

The authors simultaneously observed Rac1 activity during optogenetic manipulation of Rac1.

and simultaneously observed Rac1 activity during optogenetic manipulation of Rac1
Claim 10biological observationsupports2018Source 1needs review

Rac1 activity and GDI binding closely depend on the spatiotemporal coordination between these two molecules.

showed that Rac1 activity and GDI binding closely depend on the spatiotemporal coordination between these two molecules
Claim 11biological observationsupports2018Source 1needs review

Rac1 activity and GDI binding closely depend on the spatiotemporal coordination between these two molecules.

showed that Rac1 activity and GDI binding closely depend on the spatiotemporal coordination between these two molecules
Claim 12biological observationsupports2018Source 1needs review

Rac1 activity and GDI binding closely depend on the spatiotemporal coordination between these two molecules.

showed that Rac1 activity and GDI binding closely depend on the spatiotemporal coordination between these two molecules
Claim 13biological observationsupports2018Source 1needs review

Rac1 activity and GDI binding closely depend on the spatiotemporal coordination between these two molecules.

showed that Rac1 activity and GDI binding closely depend on the spatiotemporal coordination between these two molecules
Claim 14biological observationsupports2018Source 1needs review

Rac1 activity and GDI binding closely depend on the spatiotemporal coordination between these two molecules.

showed that Rac1 activity and GDI binding closely depend on the spatiotemporal coordination between these two molecules
Claim 15biological observationsupports2018Source 1needs review

Rac1 activity and GDI binding closely depend on the spatiotemporal coordination between these two molecules.

showed that Rac1 activity and GDI binding closely depend on the spatiotemporal coordination between these two molecules
Claim 16biological observationsupports2018Source 1needs review

Rac1 activity and GDI binding closely depend on the spatiotemporal coordination between these two molecules.

showed that Rac1 activity and GDI binding closely depend on the spatiotemporal coordination between these two molecules
Claim 17biological observationsupports2018Source 1needs review

Rac1 activity and GDI binding closely depend on the spatiotemporal coordination between these two molecules.

showed that Rac1 activity and GDI binding closely depend on the spatiotemporal coordination between these two molecules
Claim 18biological observationsupports2018Source 1needs review

Rac1 activity and GDI binding closely depend on the spatiotemporal coordination between these two molecules.

showed that Rac1 activity and GDI binding closely depend on the spatiotemporal coordination between these two molecules
Claim 19biological observationsupports2018Source 1needs review

Using the multiplexed imaging setup, the authors directly observed and quantified antagonism between RhoA and Rac1 that depended on the RhoA-downstream effector ROCK.

We directly observed and quantified antagonism between RhoA and Rac1 dependent on the RhoA-downstream effector ROCK
Claim 20biological observationsupports2018Source 1needs review

Using the multiplexed imaging setup, the authors directly observed and quantified antagonism between RhoA and Rac1 that depended on the RhoA-downstream effector ROCK.

We directly observed and quantified antagonism between RhoA and Rac1 dependent on the RhoA-downstream effector ROCK
Claim 21biological observationsupports2018Source 1needs review

Using the multiplexed imaging setup, the authors directly observed and quantified antagonism between RhoA and Rac1 that depended on the RhoA-downstream effector ROCK.

We directly observed and quantified antagonism between RhoA and Rac1 dependent on the RhoA-downstream effector ROCK
Claim 22biological observationsupports2018Source 1needs review

Using the multiplexed imaging setup, the authors directly observed and quantified antagonism between RhoA and Rac1 that depended on the RhoA-downstream effector ROCK.

We directly observed and quantified antagonism between RhoA and Rac1 dependent on the RhoA-downstream effector ROCK
Claim 23biological observationsupports2018Source 1needs review

Using the multiplexed imaging setup, the authors directly observed and quantified antagonism between RhoA and Rac1 that depended on the RhoA-downstream effector ROCK.

We directly observed and quantified antagonism between RhoA and Rac1 dependent on the RhoA-downstream effector ROCK
Claim 24biological observationsupports2018Source 1needs review

Using the multiplexed imaging setup, the authors directly observed and quantified antagonism between RhoA and Rac1 that depended on the RhoA-downstream effector ROCK.

We directly observed and quantified antagonism between RhoA and Rac1 dependent on the RhoA-downstream effector ROCK
Claim 25biological observationsupports2018Source 1needs review

Using the multiplexed imaging setup, the authors directly observed and quantified antagonism between RhoA and Rac1 that depended on the RhoA-downstream effector ROCK.

We directly observed and quantified antagonism between RhoA and Rac1 dependent on the RhoA-downstream effector ROCK
Claim 26biological observationsupports2018Source 1needs review

Using the multiplexed imaging setup, the authors directly observed and quantified antagonism between RhoA and Rac1 that depended on the RhoA-downstream effector ROCK.

We directly observed and quantified antagonism between RhoA and Rac1 dependent on the RhoA-downstream effector ROCK
Claim 27biological observationsupports2018Source 1needs review

Using the multiplexed imaging setup, the authors directly observed and quantified antagonism between RhoA and Rac1 that depended on the RhoA-downstream effector ROCK.

We directly observed and quantified antagonism between RhoA and Rac1 dependent on the RhoA-downstream effector ROCK
Claim 28tool capabilitysupports2018Source 1needs review

miRFP720 and the miRFP670-miRFP720 fully near-infrared FRET pair enabled design of biosensors compatible with CFP-YFP imaging and blue-green optogenetic tools.

Here we report the most red-shifted monomeric near-infrared (NIR) fluorescent protein, miRFP720, and the fully NIR Förster resonance energy transfer (FRET) pair miRFP670-miRFP720, which together enabled design of biosensors compatible with CFP-YFP imaging and blue-green optogenetic tools.
Claim 29tool capabilitysupports2018Source 1needs review

miRFP720 and the miRFP670-miRFP720 fully near-infrared FRET pair enabled design of biosensors compatible with CFP-YFP imaging and blue-green optogenetic tools.

Here we report the most red-shifted monomeric near-infrared (NIR) fluorescent protein, miRFP720, and the fully NIR Förster resonance energy transfer (FRET) pair miRFP670-miRFP720, which together enabled design of biosensors compatible with CFP-YFP imaging and blue-green optogenetic tools.
Claim 30tool capabilitysupports2018Source 1needs review

miRFP720 and the miRFP670-miRFP720 fully near-infrared FRET pair enabled design of biosensors compatible with CFP-YFP imaging and blue-green optogenetic tools.

Here we report the most red-shifted monomeric near-infrared (NIR) fluorescent protein, miRFP720, and the fully NIR Förster resonance energy transfer (FRET) pair miRFP670-miRFP720, which together enabled design of biosensors compatible with CFP-YFP imaging and blue-green optogenetic tools.
Claim 31tool capabilitysupports2018Source 1needs review

miRFP720 and the miRFP670-miRFP720 fully near-infrared FRET pair enabled design of biosensors compatible with CFP-YFP imaging and blue-green optogenetic tools.

Here we report the most red-shifted monomeric near-infrared (NIR) fluorescent protein, miRFP720, and the fully NIR Förster resonance energy transfer (FRET) pair miRFP670-miRFP720, which together enabled design of biosensors compatible with CFP-YFP imaging and blue-green optogenetic tools.
Claim 32tool capabilitysupports2018Source 1needs review

miRFP720 and the miRFP670-miRFP720 fully near-infrared FRET pair enabled design of biosensors compatible with CFP-YFP imaging and blue-green optogenetic tools.

Here we report the most red-shifted monomeric near-infrared (NIR) fluorescent protein, miRFP720, and the fully NIR Förster resonance energy transfer (FRET) pair miRFP670-miRFP720, which together enabled design of biosensors compatible with CFP-YFP imaging and blue-green optogenetic tools.
Claim 33tool capabilitysupports2018Source 1needs review

miRFP720 and the miRFP670-miRFP720 fully near-infrared FRET pair enabled design of biosensors compatible with CFP-YFP imaging and blue-green optogenetic tools.

Here we report the most red-shifted monomeric near-infrared (NIR) fluorescent protein, miRFP720, and the fully NIR Förster resonance energy transfer (FRET) pair miRFP670-miRFP720, which together enabled design of biosensors compatible with CFP-YFP imaging and blue-green optogenetic tools.
Claim 34tool capabilitysupports2018Source 1needs review

miRFP720 and the miRFP670-miRFP720 fully near-infrared FRET pair enabled design of biosensors compatible with CFP-YFP imaging and blue-green optogenetic tools.

Here we report the most red-shifted monomeric near-infrared (NIR) fluorescent protein, miRFP720, and the fully NIR Förster resonance energy transfer (FRET) pair miRFP670-miRFP720, which together enabled design of biosensors compatible with CFP-YFP imaging and blue-green optogenetic tools.
Claim 35tool capabilitysupports2018Source 1needs review

miRFP720 and the miRFP670-miRFP720 fully near-infrared FRET pair enabled design of biosensors compatible with CFP-YFP imaging and blue-green optogenetic tools.

Here we report the most red-shifted monomeric near-infrared (NIR) fluorescent protein, miRFP720, and the fully NIR Förster resonance energy transfer (FRET) pair miRFP670-miRFP720, which together enabled design of biosensors compatible with CFP-YFP imaging and blue-green optogenetic tools.
Claim 36tool capabilitysupports2018Source 1needs review

miRFP720 and the miRFP670-miRFP720 fully near-infrared FRET pair enabled design of biosensors compatible with CFP-YFP imaging and blue-green optogenetic tools.

Here we report the most red-shifted monomeric near-infrared (NIR) fluorescent protein, miRFP720, and the fully NIR Förster resonance energy transfer (FRET) pair miRFP670-miRFP720, which together enabled design of biosensors compatible with CFP-YFP imaging and blue-green optogenetic tools.
Claim 37tool developmentsupports2018Source 1needs review

The authors developed a near-infrared biosensor for Rac1 GTPase and demonstrated its use in multiplexed imaging and light control of Rho GTPase signaling pathways.

We developed a NIR biosensor for Rac1 GTPase and demonstrated its use in multiplexed imaging and light control of Rho GTPase signaling pathways.
Claim 38tool developmentsupports2018Source 1needs review

The authors developed a near-infrared biosensor for Rac1 GTPase and demonstrated its use in multiplexed imaging and light control of Rho GTPase signaling pathways.

We developed a NIR biosensor for Rac1 GTPase and demonstrated its use in multiplexed imaging and light control of Rho GTPase signaling pathways.
Claim 39tool developmentsupports2018Source 1needs review

The authors developed a near-infrared biosensor for Rac1 GTPase and demonstrated its use in multiplexed imaging and light control of Rho GTPase signaling pathways.

We developed a NIR biosensor for Rac1 GTPase and demonstrated its use in multiplexed imaging and light control of Rho GTPase signaling pathways.
Claim 40tool developmentsupports2018Source 1needs review

The authors developed a near-infrared biosensor for Rac1 GTPase and demonstrated its use in multiplexed imaging and light control of Rho GTPase signaling pathways.

We developed a NIR biosensor for Rac1 GTPase and demonstrated its use in multiplexed imaging and light control of Rho GTPase signaling pathways.
Claim 41tool developmentsupports2018Source 1needs review

The authors developed a near-infrared biosensor for Rac1 GTPase and demonstrated its use in multiplexed imaging and light control of Rho GTPase signaling pathways.

We developed a NIR biosensor for Rac1 GTPase and demonstrated its use in multiplexed imaging and light control of Rho GTPase signaling pathways.
Claim 42tool developmentsupports2018Source 1needs review

The authors developed a near-infrared biosensor for Rac1 GTPase and demonstrated its use in multiplexed imaging and light control of Rho GTPase signaling pathways.

We developed a NIR biosensor for Rac1 GTPase and demonstrated its use in multiplexed imaging and light control of Rho GTPase signaling pathways.
Claim 43tool developmentsupports2018Source 1needs review

The authors developed a near-infrared biosensor for Rac1 GTPase and demonstrated its use in multiplexed imaging and light control of Rho GTPase signaling pathways.

We developed a NIR biosensor for Rac1 GTPase and demonstrated its use in multiplexed imaging and light control of Rho GTPase signaling pathways.
Claim 44tool developmentsupports2018Source 1needs review

The authors developed a near-infrared biosensor for Rac1 GTPase and demonstrated its use in multiplexed imaging and light control of Rho GTPase signaling pathways.

We developed a NIR biosensor for Rac1 GTPase and demonstrated its use in multiplexed imaging and light control of Rho GTPase signaling pathways.
Claim 45tool developmentsupports2018Source 1needs review

The authors developed a near-infrared biosensor for Rac1 GTPase and demonstrated its use in multiplexed imaging and light control of Rho GTPase signaling pathways.

We developed a NIR biosensor for Rac1 GTPase and demonstrated its use in multiplexed imaging and light control of Rho GTPase signaling pathways.

Approval Evidence

1 source1 linked approval claimfirst-pass slug mirfp720
Here we report the most red-shifted monomeric near-infrared (NIR) fluorescent protein, miRFP720

Source:

tool capabilitysupports

miRFP720 and the miRFP670-miRFP720 fully near-infrared FRET pair enabled design of biosensors compatible with CFP-YFP imaging and blue-green optogenetic tools.

Here we report the most red-shifted monomeric near-infrared (NIR) fluorescent protein, miRFP720, and the fully NIR Förster resonance energy transfer (FRET) pair miRFP670-miRFP720, which together enabled design of biosensors compatible with CFP-YFP imaging and blue-green optogenetic tools.

Source:

Comparisons

Source-backed strengths

The cited study describes miRFP720 as the most red-shifted monomeric NIR fluorescent protein reported there, which is a clear spectral positioning advantage. Its use in a near-infrared FRET-enabled multiplex imaging context was sufficient to support simultaneous imaging and optogenetic experiments involving Rho GTPase signaling.

Source:

described as the most red-shifted monomeric near-infrared fluorescent protein

Source:

compatible with multiplexing alongside CFP-YFP imaging and blue-green optogenetic tools

Ranked Citations

  1. 1.
    StructuralSource 1Nature Chemical Biology2018Claim 1Claim 2Claim 3

    Extracted from this source document.