Source 1primary paper2014Nature Methods
Toolkit/CheRiff
CheRiff
Taxonomy: Mechanism Branch / Architecture. Workflows sit above the mechanism and technique branches rather than replacing them.
Summary
The web research summary states that the anchor paper full text explicitly names CheRiff as the engineered channelrhodopsin actuator spectrally orthogonal to QuasAr indicators.
Usefulness & Problems
Why this is useful
CheRiff is presented as the optogenetic actuator component used in the Optopatch platform. It provides light-driven stimulation for all-optical electrophysiology assays.; optical stimulation in all-optical electrophysiology; CheRiff is described in the supplied summary as the blue light-activated channelrhodopsin variant used in Optopatch constructs.; blue light-activated optical stimulation; CheRiff is described as an engineered channelrhodopsin actuator used for optical stimulation in the all-optical electrophysiology system.; optical stimulation of neurons; all-optical electrophysiology
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CheRiff is presented as the optogenetic actuator component used in the Optopatch platform. It provides light-driven stimulation for all-optical electrophysiology assays.
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optical stimulation in all-optical electrophysiology
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CheRiff is described in the supplied summary as the blue light-activated channelrhodopsin variant used in Optopatch constructs.
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blue light-activated optical stimulation
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CheRiff is described as an engineered channelrhodopsin actuator used for optical stimulation in the all-optical electrophysiology system.
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optical stimulation of neurons
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all-optical electrophysiology
Problem solved
It supplies a non-electrode stimulation modality for optical electrophysiology workflows. This helps enable integrated stimulation-and-readout assays.; provides the stimulation component of the Optopatch assay; It provides the actuation half of an all-optical electrophysiology setup.; providing an optogenetic actuator component within all-optical electrophysiology systems; It supplies the stimulation arm of a combined optical stimulation and optical recording workflow.; providing an optogenetic actuator that can be paired with QuasAr indicators
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It supplies a non-electrode stimulation modality for optical electrophysiology workflows. This helps enable integrated stimulation-and-readout assays.
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provides the stimulation component of the Optopatch assay
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It provides the actuation half of an all-optical electrophysiology setup.
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providing an optogenetic actuator component within all-optical electrophysiology systems
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It supplies the stimulation arm of a combined optical stimulation and optical recording workflow.
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providing an optogenetic actuator that can be paired with QuasAr indicators
Problem links
provides the stimulation component of the Optopatch assay
LiteratureIt supplies a non-electrode stimulation modality for optical electrophysiology workflows. This helps enable integrated stimulation-and-readout assays.
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It supplies a non-electrode stimulation modality for optical electrophysiology workflows. This helps enable integrated stimulation-and-readout assays.
providing an optogenetic actuator component within all-optical electrophysiology systems
LiteratureIt provides the actuation half of an all-optical electrophysiology setup.
Source:
It provides the actuation half of an all-optical electrophysiology setup.
providing an optogenetic actuator that can be paired with QuasAr indicators
LiteratureIt supplies the stimulation arm of a combined optical stimulation and optical recording workflow.
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It supplies the stimulation arm of a combined optical stimulation and optical recording workflow.
Published Workflows
Objective: Enable all-optical electrophysiology in mammalian neurons using engineered microbial rhodopsins for optical stimulation and optical voltage recording in the same genetically targeted system.
Why it works: The source scaffold indicates that the platform pairs QuasAr voltage indicators with the CheRiff actuator and emphasizes spectral orthogonality and cross-talk-free operation.
microbial rhodopsin-based voltage-sensitive fluorescencechannelrhodopsin-based optical actuationall-optical electrophysiologycoexpression platform design
Taxonomy & Function
Primary hierarchy
Mechanism Branch
Architecture: A reusable architecture pattern for arranging parts into an engineered system.
Mechanisms
light-gated ion channel activationspectral orthogonality for parallel optical actuation and voltage readoutTarget processes
recombinationselectionInput: Light
Implementation Constraints
cofactor dependency: cofactor requirement unknownencoding mode: genetically encodedimplementation constraint: context specific validationimplementation constraint: spectral hardware requirementoperating role: sensorswitch architecture: split
Its use requires expression in the assay system and compatible optical stimulation hardware. In the supplied evidence it is paired with QuasAr voltage indicators.; used as part of the Optopatch platform; requires optical stimulation hardware; Its use requires optical illumination and expression in the target cells, and in the review context it is paired with a readout component such as QuasAr2.; used as a component within a larger optical electrophysiology construct context; Its use requires neuronal expression and illumination conditions suitable for optogenetic activation.; requires expression in mammalian neurons
standalone strengths and weaknesses relative to other actuators are not detailed in the supplied evidence; the provided review evidence does not include comparative performance claims
Validation
Cell-freeBacteriaMammalianMouseHumanTherapeuticIndep. Replication
Supporting Sources
Source 2review2017Trends in biotechnology
Source 3review2016Biophysical Journal
Ranked Claims
The review discusses bPAC as an optogenetic tool for cAMP control.
The review discusses iGluSnFR as a neurotransmitter reporter relevant to synaptic function assays.
The review discusses optoXRs as optogenetic tools for GPCR signaling in discovery-oriented applications.
The review describes Optopatch as pairing CheRiff with QuasAr voltage indicators.
This review centers optogenetic and all-optical electrophysiology approaches for phenotypic screening in drug discovery.
GCaMP6s is used in the review context as an activity reporter example for zebrafish brain imaging.
The anchor figure caption explicitly cites GCaMP6s for zebrafish brain activity imaging.
LOVpep and ePDZ are presented in the review context as a light-induced intracellular trafficking control system.
The anchor figure caption names LOVpep and ePDZ in a light-induced trafficking example.
Optopatch is presented in the review context as an all-optical electrophysiology system with CheRiff and QuasAr2 as named components.
PubMed figure captions ... explicitly mention tool/component names used in the review, especially Optopatch/CheRiff/QuasAr2.
pMag and nMag are presented in the review context as a light-induced dimerization pair used to reconstitute split Cas9 in photoactivatable genome editing.
The anchor figure caption names pMag as one half of the light-induced dimerization pair used to reconstitute split Cas9 ... nMag as the partner to pMag.
CheRiff is an engineered channelrhodopsin actuator that is spectrally orthogonal to QuasAr indicators.
QuasAr1 and QuasAr2 are evolved archaerhodopsin-based voltage indicators named as core components of the anchor paper.
Optopatch is a coexpression platform enabling cross-talk-free genetically targeted all-optical electrophysiology.
This paper presents all-optical electrophysiology in mammalian neurons using engineered microbial rhodopsins.
Approval Evidence
3 sources4 linked approval claimsfirst-pass slug cheriff
The review explicitly centers optogenetic/all-optical electrophysiology for phenotypic screening, especially the Optopatch platform pairing CheRiff with QuasAr voltage indicators.
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The supplied web research summary states that PubMed figure captions for the anchor review explicitly name CheRiff as part of Optopatch.
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The web research summary states that the anchor paper full text explicitly names CheRiff as the engineered channelrhodopsin actuator spectrally orthogonal to QuasAr indicators.
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component compositionsupports
The review describes Optopatch as pairing CheRiff with QuasAr voltage indicators.
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tool composition or rolesupports
Optopatch is presented in the review context as an all-optical electrophysiology system with CheRiff and QuasAr2 as named components.
PubMed figure captions ... explicitly mention tool/component names used in the review, especially Optopatch/CheRiff/QuasAr2.
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component rolesupports
CheRiff is an engineered channelrhodopsin actuator that is spectrally orthogonal to QuasAr indicators.
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tool introductionsupports
This paper presents all-optical electrophysiology in mammalian neurons using engineered microbial rhodopsins.
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Comparisons
Source-stated alternatives
The supplied review scaffold does not name specific alternative actuators in the same sentence, but it places CheRiff within a broader optogenetic toolkit.; The same summary also mentions Channelrhodopsin-2 as another explicitly named optogenetic actuator in the review context.; The source scaffold contrasts it functionally with QuasAr indicators, which provide the recording arm rather than actuation.
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The supplied review scaffold does not name specific alternative actuators in the same sentence, but it places CheRiff within a broader optogenetic toolkit.
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The same summary also mentions Channelrhodopsin-2 as another explicitly named optogenetic actuator in the review context.
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The source scaffold contrasts it functionally with QuasAr indicators, which provide the recording arm rather than actuation.
Source-backed strengths
identified as a core actuator component in a central assay platform; explicitly identified as a component in a named all-optical electrophysiology system; described as spectrally orthogonal to QuasAr indicators
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identified as a core actuator component in a central assay platform
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explicitly identified as a component in a named all-optical electrophysiology system
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described as spectrally orthogonal to QuasAr indicators
Compared with optogenetic
The supplied review scaffold does not name specific alternative actuators in the same sentence, but it places CheRiff within a broader optogenetic toolkit.; The same summary also mentions Channelrhodopsin-2 as another explicitly named optogenetic actuator in the review context.
Shared frame: source-stated alternative in extracted literature
Strengths here: identified as a core actuator component in a central assay platform; explicitly identified as a component in a named all-optical electrophysiology system; described as spectrally orthogonal to QuasAr indicators.
Relative tradeoffs: standalone strengths and weaknesses relative to other actuators are not detailed in the supplied evidence; the provided review evidence does not include comparative performance claims.
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The supplied review scaffold does not name specific alternative actuators in the same sentence, but it places CheRiff within a broader optogenetic toolkit.
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The same summary also mentions Channelrhodopsin-2 as another explicitly named optogenetic actuator in the review context.
Compared with optogenetic actuator
The same summary also mentions Channelrhodopsin-2 as another explicitly named optogenetic actuator in the review context.
Shared frame: source-stated alternative in extracted literature
Strengths here: identified as a core actuator component in a central assay platform; explicitly identified as a component in a named all-optical electrophysiology system; described as spectrally orthogonal to QuasAr indicators.
Relative tradeoffs: standalone strengths and weaknesses relative to other actuators are not detailed in the supplied evidence; the provided review evidence does not include comparative performance claims.
Source:
The same summary also mentions Channelrhodopsin-2 as another explicitly named optogenetic actuator in the review context.
Ranked Citations
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