Toolkit/mammalian rod opsin

mammalian rod opsin

Protein Domain·Research·Since 2012

Also known as: rod opsin

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

Summary

Mammalian rod opsin is an opsin-based light-responsive GPCR domain used in optogenetic contexts. In the cited evidence, it is discussed primarily as a comparator whose responses dissipate during repeated light exposure, consistent with bleaching.

Usefulness & Problems

Why this is useful

The cited evidence indicates that mammalian rod opsin provides a benchmark for evaluating optogenetic GPCR performance under repeated illumination. Its main utility in this record is as a reference point for limitations that alternative opsins were designed to overcome.

Source:

Visible light induced high amplitude, reversible, and reproducible increases in cAMP in mammalian cells expressing JellyOp

Problem solved

Mammalian rod opsin addresses the general need for a light-activated GPCR module in optogenetic systems. However, the supplied evidence does not document a specific application success for this tool beyond its use as a comparator in repeated-exposure experiments.

Taxonomy & Function

Primary hierarchy

Mechanism Branch

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

Techniques

No technique tags yet.

Target processes

No target processes tagged yet.

Input: Light

Implementation Constraints

The supplied evidence identifies mammalian rod opsin as a protein domain used in optogenetic contexts and mentions variants of mammalian rod opsin. No direct implementation details are provided here regarding chromophore requirements, construct architecture, expression system, or delivery method.

The key limitation supported by the cited study is dissipation of light responses during repeated exposure, attributed to rod opsin bleaching. No additional evidence is provided here on spectral properties, recovery behavior, coupling profile, or performance across cell types.

Validation

Cell-freeBacteriaMammalianMouseHumanTherapeuticIndep. Replication

Supporting Sources

Ranked Claims

Claim 1comparative advantagesupports2012Source 1needs review

Replacing rod opsin with JellyOp overcomes the repeated-exposure dissipation limitation attributed to rod opsin bleaching.

replacing rod opsin with a bleach resistant opsin from Carybdea rastonii, the box jellyfish, (JellyOp) overcomes this limitation
Claim 2comparative advantagesupports2012Source 1needs review

Replacing rod opsin with JellyOp overcomes the repeated-exposure dissipation limitation attributed to rod opsin bleaching.

replacing rod opsin with a bleach resistant opsin from Carybdea rastonii, the box jellyfish, (JellyOp) overcomes this limitation
Claim 3comparative advantagesupports2012Source 1needs review

Replacing rod opsin with JellyOp overcomes the repeated-exposure dissipation limitation attributed to rod opsin bleaching.

replacing rod opsin with a bleach resistant opsin from Carybdea rastonii, the box jellyfish, (JellyOp) overcomes this limitation
Claim 4comparative advantagesupports2012Source 1needs review

Replacing rod opsin with JellyOp overcomes the repeated-exposure dissipation limitation attributed to rod opsin bleaching.

replacing rod opsin with a bleach resistant opsin from Carybdea rastonii, the box jellyfish, (JellyOp) overcomes this limitation
Claim 5comparative advantagesupports2012Source 1needs review

Replacing rod opsin with JellyOp overcomes the repeated-exposure dissipation limitation attributed to rod opsin bleaching.

replacing rod opsin with a bleach resistant opsin from Carybdea rastonii, the box jellyfish, (JellyOp) overcomes this limitation
Claim 6comparative advantagesupports2012Source 1needs review

Replacing rod opsin with JellyOp overcomes the repeated-exposure dissipation limitation attributed to rod opsin bleaching.

replacing rod opsin with a bleach resistant opsin from Carybdea rastonii, the box jellyfish, (JellyOp) overcomes this limitation
Claim 7comparative advantagesupports2012Source 1needs review

Replacing rod opsin with JellyOp overcomes the repeated-exposure dissipation limitation attributed to rod opsin bleaching.

replacing rod opsin with a bleach resistant opsin from Carybdea rastonii, the box jellyfish, (JellyOp) overcomes this limitation
Claim 8functional effectsupports2012Source 1needs review

Visible light induces high-amplitude, reversible, and reproducible increases in cAMP in mammalian cells expressing JellyOp.

Visible light induced high amplitude, reversible, and reproducible increases in cAMP in mammalian cells expressing JellyOp
Claim 9functional effectsupports2012Source 1needs review

Visible light induces high-amplitude, reversible, and reproducible increases in cAMP in mammalian cells expressing JellyOp.

Visible light induced high amplitude, reversible, and reproducible increases in cAMP in mammalian cells expressing JellyOp
Claim 10functional effectsupports2012Source 1needs review

Visible light induces high-amplitude, reversible, and reproducible increases in cAMP in mammalian cells expressing JellyOp.

Visible light induced high amplitude, reversible, and reproducible increases in cAMP in mammalian cells expressing JellyOp
Claim 11functional effectsupports2012Source 1needs review

Visible light induces high-amplitude, reversible, and reproducible increases in cAMP in mammalian cells expressing JellyOp.

Visible light induced high amplitude, reversible, and reproducible increases in cAMP in mammalian cells expressing JellyOp
Claim 12functional effectsupports2012Source 1needs review

Visible light induces high-amplitude, reversible, and reproducible increases in cAMP in mammalian cells expressing JellyOp.

Visible light induced high amplitude, reversible, and reproducible increases in cAMP in mammalian cells expressing JellyOp
Claim 13functional effectsupports2012Source 1needs review

Visible light induces high-amplitude, reversible, and reproducible increases in cAMP in mammalian cells expressing JellyOp.

Visible light induced high amplitude, reversible, and reproducible increases in cAMP in mammalian cells expressing JellyOp
Claim 14functional effectsupports2012Source 1needs review

Visible light induces high-amplitude, reversible, and reproducible increases in cAMP in mammalian cells expressing JellyOp.

Visible light induced high amplitude, reversible, and reproducible increases in cAMP in mammalian cells expressing JellyOp
Claim 15intended usesupports2012Source 1needs review

JellyOp is presented as a promising optogenetic tool for mimicking the activity of Gs-coupled G protein-coupled receptors with fine spatiotemporal resolution.

We conclude that JellyOp is a promising new tool for mimicking the activity of Gs-coupled G protein coupled receptors with fine spatiotemporal resolution
Claim 16intended usesupports2012Source 1needs review

JellyOp is presented as a promising optogenetic tool for mimicking the activity of Gs-coupled G protein-coupled receptors with fine spatiotemporal resolution.

We conclude that JellyOp is a promising new tool for mimicking the activity of Gs-coupled G protein coupled receptors with fine spatiotemporal resolution
Claim 17intended usesupports2012Source 1needs review

JellyOp is presented as a promising optogenetic tool for mimicking the activity of Gs-coupled G protein-coupled receptors with fine spatiotemporal resolution.

We conclude that JellyOp is a promising new tool for mimicking the activity of Gs-coupled G protein coupled receptors with fine spatiotemporal resolution
Claim 18intended usesupports2012Source 1needs review

JellyOp is presented as a promising optogenetic tool for mimicking the activity of Gs-coupled G protein-coupled receptors with fine spatiotemporal resolution.

We conclude that JellyOp is a promising new tool for mimicking the activity of Gs-coupled G protein coupled receptors with fine spatiotemporal resolution
Claim 19intended usesupports2012Source 1needs review

JellyOp is presented as a promising optogenetic tool for mimicking the activity of Gs-coupled G protein-coupled receptors with fine spatiotemporal resolution.

We conclude that JellyOp is a promising new tool for mimicking the activity of Gs-coupled G protein coupled receptors with fine spatiotemporal resolution
Claim 20intended usesupports2012Source 1needs review

JellyOp is presented as a promising optogenetic tool for mimicking the activity of Gs-coupled G protein-coupled receptors with fine spatiotemporal resolution.

We conclude that JellyOp is a promising new tool for mimicking the activity of Gs-coupled G protein coupled receptors with fine spatiotemporal resolution
Claim 21intended usesupports2012Source 1needs review

JellyOp is presented as a promising optogenetic tool for mimicking the activity of Gs-coupled G protein-coupled receptors with fine spatiotemporal resolution.

We conclude that JellyOp is a promising new tool for mimicking the activity of Gs-coupled G protein coupled receptors with fine spatiotemporal resolution
Claim 22limitationsupports2012Source 1needs review

Rod opsin-based optogenetic tools show light responses that dissipate under repeated exposure, consistent with bleaching.

the light response driven by such rod opsin-based tools dissipates under repeated exposure, consistent with the known bleaching characteristics of this photopigment
Claim 23limitationsupports2012Source 1needs review

Rod opsin-based optogenetic tools show light responses that dissipate under repeated exposure, consistent with bleaching.

the light response driven by such rod opsin-based tools dissipates under repeated exposure, consistent with the known bleaching characteristics of this photopigment
Claim 24limitationsupports2012Source 1needs review

Rod opsin-based optogenetic tools show light responses that dissipate under repeated exposure, consistent with bleaching.

the light response driven by such rod opsin-based tools dissipates under repeated exposure, consistent with the known bleaching characteristics of this photopigment
Claim 25limitationsupports2012Source 1needs review

Rod opsin-based optogenetic tools show light responses that dissipate under repeated exposure, consistent with bleaching.

the light response driven by such rod opsin-based tools dissipates under repeated exposure, consistent with the known bleaching characteristics of this photopigment
Claim 26limitationsupports2012Source 1needs review

Rod opsin-based optogenetic tools show light responses that dissipate under repeated exposure, consistent with bleaching.

the light response driven by such rod opsin-based tools dissipates under repeated exposure, consistent with the known bleaching characteristics of this photopigment
Claim 27limitationsupports2012Source 1needs review

Rod opsin-based optogenetic tools show light responses that dissipate under repeated exposure, consistent with bleaching.

the light response driven by such rod opsin-based tools dissipates under repeated exposure, consistent with the known bleaching characteristics of this photopigment
Claim 28limitationsupports2012Source 1needs review

Rod opsin-based optogenetic tools show light responses that dissipate under repeated exposure, consistent with bleaching.

the light response driven by such rod opsin-based tools dissipates under repeated exposure, consistent with the known bleaching characteristics of this photopigment
Claim 29photosensitivitysupports2012Source 1needs review

JellyOp is more photosensitive than currently available optogenetic tools and responds to white light at irradiances of at least 1 µW/cm(2).

JellyOp was more photosensitive than currently available optogenetic tools, responding to white light at irradiances ≥1 µW/cm(2)
white light irradiance response threshold 1 µW/cm(2)
Claim 30photosensitivitysupports2012Source 1needs review

JellyOp is more photosensitive than currently available optogenetic tools and responds to white light at irradiances of at least 1 µW/cm(2).

JellyOp was more photosensitive than currently available optogenetic tools, responding to white light at irradiances ≥1 µW/cm(2)
white light irradiance response threshold 1 µW/cm(2)
Claim 31photosensitivitysupports2012Source 1needs review

JellyOp is more photosensitive than currently available optogenetic tools and responds to white light at irradiances of at least 1 µW/cm(2).

JellyOp was more photosensitive than currently available optogenetic tools, responding to white light at irradiances ≥1 µW/cm(2)
white light irradiance response threshold 1 µW/cm(2)
Claim 32photosensitivitysupports2012Source 1needs review

JellyOp is more photosensitive than currently available optogenetic tools and responds to white light at irradiances of at least 1 µW/cm(2).

JellyOp was more photosensitive than currently available optogenetic tools, responding to white light at irradiances ≥1 µW/cm(2)
white light irradiance response threshold 1 µW/cm(2)
Claim 33photosensitivitysupports2012Source 1needs review

JellyOp is more photosensitive than currently available optogenetic tools and responds to white light at irradiances of at least 1 µW/cm(2).

JellyOp was more photosensitive than currently available optogenetic tools, responding to white light at irradiances ≥1 µW/cm(2)
white light irradiance response threshold 1 µW/cm(2)
Claim 34photosensitivitysupports2012Source 1needs review

JellyOp is more photosensitive than currently available optogenetic tools and responds to white light at irradiances of at least 1 µW/cm(2).

JellyOp was more photosensitive than currently available optogenetic tools, responding to white light at irradiances ≥1 µW/cm(2)
white light irradiance response threshold 1 µW/cm(2)
Claim 35photosensitivitysupports2012Source 1needs review

JellyOp is more photosensitive than currently available optogenetic tools and responds to white light at irradiances of at least 1 µW/cm(2).

JellyOp was more photosensitive than currently available optogenetic tools, responding to white light at irradiances ≥1 µW/cm(2)
white light irradiance response threshold 1 µW/cm(2)
Claim 36stimulation responsesupports2012Source 1needs review

Single flashes produce a brief cAMP spike, whereas repeated stimulation can sustain elevated cAMP levels for tens of minutes in JellyOp-expressing mammalian cells.

While single flashes produced a brief cAMP spike, repeated stimulation could sustain elevated levels for 10s of minutes
duration of sustained elevated cAMP 10s of minutes
Claim 37stimulation responsesupports2012Source 1needs review

Single flashes produce a brief cAMP spike, whereas repeated stimulation can sustain elevated cAMP levels for tens of minutes in JellyOp-expressing mammalian cells.

While single flashes produced a brief cAMP spike, repeated stimulation could sustain elevated levels for 10s of minutes
duration of sustained elevated cAMP 10s of minutes
Claim 38stimulation responsesupports2012Source 1needs review

Single flashes produce a brief cAMP spike, whereas repeated stimulation can sustain elevated cAMP levels for tens of minutes in JellyOp-expressing mammalian cells.

While single flashes produced a brief cAMP spike, repeated stimulation could sustain elevated levels for 10s of minutes
duration of sustained elevated cAMP 10s of minutes
Claim 39stimulation responsesupports2012Source 1needs review

Single flashes produce a brief cAMP spike, whereas repeated stimulation can sustain elevated cAMP levels for tens of minutes in JellyOp-expressing mammalian cells.

While single flashes produced a brief cAMP spike, repeated stimulation could sustain elevated levels for 10s of minutes
duration of sustained elevated cAMP 10s of minutes
Claim 40stimulation responsesupports2012Source 1needs review

Single flashes produce a brief cAMP spike, whereas repeated stimulation can sustain elevated cAMP levels for tens of minutes in JellyOp-expressing mammalian cells.

While single flashes produced a brief cAMP spike, repeated stimulation could sustain elevated levels for 10s of minutes
duration of sustained elevated cAMP 10s of minutes
Claim 41stimulation responsesupports2012Source 1needs review

Single flashes produce a brief cAMP spike, whereas repeated stimulation can sustain elevated cAMP levels for tens of minutes in JellyOp-expressing mammalian cells.

While single flashes produced a brief cAMP spike, repeated stimulation could sustain elevated levels for 10s of minutes
duration of sustained elevated cAMP 10s of minutes
Claim 42stimulation responsesupports2012Source 1needs review

Single flashes produce a brief cAMP spike, whereas repeated stimulation can sustain elevated cAMP levels for tens of minutes in JellyOp-expressing mammalian cells.

While single flashes produced a brief cAMP spike, repeated stimulation could sustain elevated levels for 10s of minutes
duration of sustained elevated cAMP 10s of minutes

Approval Evidence

1 source2 linked approval claimsfirst-pass slug mammalian-rod-opsin
variants of mammalian rod opsin

Source:

comparative advantagesupports

Replacing rod opsin with JellyOp overcomes the repeated-exposure dissipation limitation attributed to rod opsin bleaching.

replacing rod opsin with a bleach resistant opsin from Carybdea rastonii, the box jellyfish, (JellyOp) overcomes this limitation

Source:

limitationsupports

Rod opsin-based optogenetic tools show light responses that dissipate under repeated exposure, consistent with bleaching.

the light response driven by such rod opsin-based tools dissipates under repeated exposure, consistent with the known bleaching characteristics of this photopigment

Source:

Comparisons

Source-backed strengths

The evidence supports that mammalian rod opsin is sufficiently established to serve as a comparator against another metazoan opsin in mammalian-cell optogenetic studies. Beyond its identity as a light-responsive opsin module, the supplied record does not provide direct performance data for amplitude, reversibility, kinetics, or signaling specificity.

Source:

replacing rod opsin with a bleach resistant opsin from Carybdea rastonii, the box jellyfish, (JellyOp) overcomes this limitation

Ranked Citations

  1. 1.
    StructuralSource 1PLoS ONE2012Claim 1Claim 2Claim 3

    Extracted from this source document.