Toolkit/OptoRAF1

OptoRAF1

Multi-Component Switch·Research·Since 2020

Also known as: CRY2/CIB1-based optogenetic RAF1 system, optogenetic RAF1 system

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

Summary

OptoRAF1 is a blue light-responsive optogenetic RAF1 system built on the CRY2/CIB1 dimerizer pair. It reversibly activates the RAF/MEK/ERK pathway by recruiting RAF1 to the plasma membrane.

Usefulness & Problems

Why this is useful

This tool provides temporal control over RAF/MEK/ERK signaling with light rather than constitutive or chemically induced pathway activation. In mouse neural progenitor cells, it has been used to modulate proliferation, astrocytogenesis-associated gene expression, and neurite growth.

Source:

We found that early light-induced OptoRAF1 activation in neural progenitor cells promotes cell proliferation and increased expression of glial markers and glia-enriched genes.

Source:

In addition, activation of OptoRAF1 did not have a significant effect on neurogenesis, but was able to promote neuronal neurite growth.

Problem solved

OptoRAF1 addresses the need to perturb RAF signaling reversibly and with precise timing in living cells. The cited study specifically used it to test how early versus delayed RAF activation influences fate-related responses in mouse neural progenitor cells.

Problem links

Need conditional recombination or state switching

Derived

OptoRAF1 is a blue light-responsive, CRY2/CIB1-based optogenetic RAF1 system that reversibly activates the RAF/MEK/ERK pathway by recruiting RAF1 to the plasma membrane. It has been used in mouse neural progenitor cells to control RAF signaling with temporal precision.

Need inducible protein relocalization or recruitment

Derived

OptoRAF1 is a blue light-responsive, CRY2/CIB1-based optogenetic RAF1 system that reversibly activates the RAF/MEK/ERK pathway by recruiting RAF1 to the plasma membrane. It has been used in mouse neural progenitor cells to control RAF signaling with temporal precision.

Need precise spatiotemporal control with light input

Derived

OptoRAF1 is a blue light-responsive, CRY2/CIB1-based optogenetic RAF1 system that reversibly activates the RAF/MEK/ERK pathway by recruiting RAF1 to the plasma membrane. It has been used in mouse neural progenitor cells to control RAF signaling with temporal precision.

Taxonomy & Function

Primary hierarchy

Mechanism Branch

Architecture: A composed arrangement of multiple parts that instantiates one or more mechanisms.

Techniques

No technique tags yet.

Target processes

localizationrecombination

Input: Light

Implementation Constraints

cofactor dependency: cofactor requirement unknownencoding mode: genetically encodedimplementation constraint: context specific validationimplementation constraint: multi component delivery burdenimplementation constraint: spectral hardware requirementoperating role: actuatoroperating role: regulatorswitch architecture: multi componentswitch architecture: recruitment

The mechanism described requires the blue light-sensitive CRY2/CIB1 protein dimerizer system and a design that enables plasma membrane recruitment of RAF1. Beyond domain fusion-based construction and blue light input, the supplied evidence does not specify wavelengths, expression strategy, membrane anchor design, or delivery method.

The supplied evidence is limited to a single 2020 study in mouse neural progenitor cells. Quantitative performance metrics, construct architecture details, illumination parameters, and validation in other cell types or organisms are not provided in the supplied evidence.

Validation

Cell-freeBacteriaMammalianMouseHumanTherapeuticIndep. Replication

Observations

successMammalian Cell Lineapplication demomouseneural progenitor cells

Inferred from claim c2 during normalization. Early light-induced OptoRAF1 activation in mouse neural progenitor cells promotes cell proliferation and increases expression of glial markers and glia-enriched genes. Derived from claim c2. Quoted text: We found that early light-induced OptoRAF1 activation in neural progenitor cells promotes cell proliferation and increased expression of glial markers and glia-enriched genes.

Source:

mixedMammalian Cell Lineapplication demomousedifferentiated neural progenitor

Inferred from claim c3 during normalization. Delayed OptoRAF1 activation in differentiated mouse neural progenitors has little effect on glial marker expression, indicating that RAF1 promotes astrocytogenesis only within a short time window. Derived from claim c3. Quoted text: However, delayed OptoRAF1 activation in differentiated neural progenitor had little effect on glia marker expression, suggesting that RAF1 is required to promote astrocytogenesis only within a short time window.

Source:

mixedMammalian Cell Lineapplication demomouse

Inferred from claim c4 during normalization. OptoRAF1 activation does not significantly affect neurogenesis but promotes neuronal neurite growth. Derived from claim c4. Quoted text: In addition, activation of OptoRAF1 did not have a significant effect on neurogenesis, but was able to promote neuronal neurite growth.

Source:

successMammalian Cell Lineapplication demomouseneural progenitor cells

Inferred from claim c2 during normalization. Early light-induced OptoRAF1 activation in mouse neural progenitor cells promotes cell proliferation and increases expression of glial markers and glia-enriched genes. Derived from claim c2. Quoted text: We found that early light-induced OptoRAF1 activation in neural progenitor cells promotes cell proliferation and increased expression of glial markers and glia-enriched genes.

Source:

mixedMammalian Cell Lineapplication demomousedifferentiated neural progenitor

Inferred from claim c3 during normalization. Delayed OptoRAF1 activation in differentiated mouse neural progenitors has little effect on glial marker expression, indicating that RAF1 promotes astrocytogenesis only within a short time window. Derived from claim c3. Quoted text: However, delayed OptoRAF1 activation in differentiated neural progenitor had little effect on glia marker expression, suggesting that RAF1 is required to promote astrocytogenesis only within a short time window.

Source:

mixedMammalian Cell Lineapplication demomouse

Inferred from claim c4 during normalization. OptoRAF1 activation does not significantly affect neurogenesis but promotes neuronal neurite growth. Derived from claim c4. Quoted text: In addition, activation of OptoRAF1 did not have a significant effect on neurogenesis, but was able to promote neuronal neurite growth.

Source:

successMammalian Cell Lineapplication demomouseneural progenitor cells

Inferred from claim c2 during normalization. Early light-induced OptoRAF1 activation in mouse neural progenitor cells promotes cell proliferation and increases expression of glial markers and glia-enriched genes. Derived from claim c2. Quoted text: We found that early light-induced OptoRAF1 activation in neural progenitor cells promotes cell proliferation and increased expression of glial markers and glia-enriched genes.

Source:

mixedMammalian Cell Lineapplication demomousedifferentiated neural progenitor

Inferred from claim c3 during normalization. Delayed OptoRAF1 activation in differentiated mouse neural progenitors has little effect on glial marker expression, indicating that RAF1 promotes astrocytogenesis only within a short time window. Derived from claim c3. Quoted text: However, delayed OptoRAF1 activation in differentiated neural progenitor had little effect on glia marker expression, suggesting that RAF1 is required to promote astrocytogenesis only within a short time window.

Source:

mixedMammalian Cell Lineapplication demomouse

Inferred from claim c4 during normalization. OptoRAF1 activation does not significantly affect neurogenesis but promotes neuronal neurite growth. Derived from claim c4. Quoted text: In addition, activation of OptoRAF1 did not have a significant effect on neurogenesis, but was able to promote neuronal neurite growth.

Source:

successMammalian Cell Lineapplication demomouseneural progenitor cells

Inferred from claim c2 during normalization. Early light-induced OptoRAF1 activation in mouse neural progenitor cells promotes cell proliferation and increases expression of glial markers and glia-enriched genes. Derived from claim c2. Quoted text: We found that early light-induced OptoRAF1 activation in neural progenitor cells promotes cell proliferation and increased expression of glial markers and glia-enriched genes.

Source:

mixedMammalian Cell Lineapplication demomousedifferentiated neural progenitor

Inferred from claim c3 during normalization. Delayed OptoRAF1 activation in differentiated mouse neural progenitors has little effect on glial marker expression, indicating that RAF1 promotes astrocytogenesis only within a short time window. Derived from claim c3. Quoted text: However, delayed OptoRAF1 activation in differentiated neural progenitor had little effect on glia marker expression, suggesting that RAF1 is required to promote astrocytogenesis only within a short time window.

Source:

mixedMammalian Cell Lineapplication demomouse

Inferred from claim c4 during normalization. OptoRAF1 activation does not significantly affect neurogenesis but promotes neuronal neurite growth. Derived from claim c4. Quoted text: In addition, activation of OptoRAF1 did not have a significant effect on neurogenesis, but was able to promote neuronal neurite growth.

Source:

successMammalian Cell Lineapplication demomouseneural progenitor cells

Inferred from claim c2 during normalization. Early light-induced OptoRAF1 activation in mouse neural progenitor cells promotes cell proliferation and increases expression of glial markers and glia-enriched genes. Derived from claim c2. Quoted text: We found that early light-induced OptoRAF1 activation in neural progenitor cells promotes cell proliferation and increased expression of glial markers and glia-enriched genes.

Source:

mixedMammalian Cell Lineapplication demomousedifferentiated neural progenitor

Inferred from claim c3 during normalization. Delayed OptoRAF1 activation in differentiated mouse neural progenitors has little effect on glial marker expression, indicating that RAF1 promotes astrocytogenesis only within a short time window. Derived from claim c3. Quoted text: However, delayed OptoRAF1 activation in differentiated neural progenitor had little effect on glia marker expression, suggesting that RAF1 is required to promote astrocytogenesis only within a short time window.

Source:

mixedMammalian Cell Lineapplication demomouse

Inferred from claim c4 during normalization. OptoRAF1 activation does not significantly affect neurogenesis but promotes neuronal neurite growth. Derived from claim c4. Quoted text: In addition, activation of OptoRAF1 did not have a significant effect on neurogenesis, but was able to promote neuronal neurite growth.

Source:

successMammalian Cell Lineapplication demomouseneural progenitor cells

Inferred from claim c2 during normalization. Early light-induced OptoRAF1 activation in mouse neural progenitor cells promotes cell proliferation and increases expression of glial markers and glia-enriched genes. Derived from claim c2. Quoted text: We found that early light-induced OptoRAF1 activation in neural progenitor cells promotes cell proliferation and increased expression of glial markers and glia-enriched genes.

Source:

mixedMammalian Cell Lineapplication demomousedifferentiated neural progenitor

Inferred from claim c3 during normalization. Delayed OptoRAF1 activation in differentiated mouse neural progenitors has little effect on glial marker expression, indicating that RAF1 promotes astrocytogenesis only within a short time window. Derived from claim c3. Quoted text: However, delayed OptoRAF1 activation in differentiated neural progenitor had little effect on glia marker expression, suggesting that RAF1 is required to promote astrocytogenesis only within a short time window.

Source:

mixedMammalian Cell Lineapplication demomouse

Inferred from claim c4 during normalization. OptoRAF1 activation does not significantly affect neurogenesis but promotes neuronal neurite growth. Derived from claim c4. Quoted text: In addition, activation of OptoRAF1 did not have a significant effect on neurogenesis, but was able to promote neuronal neurite growth.

Source:

successMammalian Cell Lineapplication demomouseneural progenitor cells

Inferred from claim c2 during normalization. Early light-induced OptoRAF1 activation in mouse neural progenitor cells promotes cell proliferation and increases expression of glial markers and glia-enriched genes. Derived from claim c2. Quoted text: We found that early light-induced OptoRAF1 activation in neural progenitor cells promotes cell proliferation and increased expression of glial markers and glia-enriched genes.

Source:

mixedMammalian Cell Lineapplication demomousedifferentiated neural progenitor

Inferred from claim c3 during normalization. Delayed OptoRAF1 activation in differentiated mouse neural progenitors has little effect on glial marker expression, indicating that RAF1 promotes astrocytogenesis only within a short time window. Derived from claim c3. Quoted text: However, delayed OptoRAF1 activation in differentiated neural progenitor had little effect on glia marker expression, suggesting that RAF1 is required to promote astrocytogenesis only within a short time window.

Source:

mixedMammalian Cell Lineapplication demomouse

Inferred from claim c4 during normalization. OptoRAF1 activation does not significantly affect neurogenesis but promotes neuronal neurite growth. Derived from claim c4. Quoted text: In addition, activation of OptoRAF1 did not have a significant effect on neurogenesis, but was able to promote neuronal neurite growth.

Source:

Supporting Sources

Ranked Claims

Claim 1functional effectsupports2020Source 1needs review

Early light-induced OptoRAF1 activation in mouse neural progenitor cells promotes cell proliferation and increases expression of glial markers and glia-enriched genes.

We found that early light-induced OptoRAF1 activation in neural progenitor cells promotes cell proliferation and increased expression of glial markers and glia-enriched genes.
Claim 2functional effectsupports2020Source 1needs review

Early light-induced OptoRAF1 activation in mouse neural progenitor cells promotes cell proliferation and increases expression of glial markers and glia-enriched genes.

We found that early light-induced OptoRAF1 activation in neural progenitor cells promotes cell proliferation and increased expression of glial markers and glia-enriched genes.
Claim 3functional effectsupports2020Source 1needs review

Early light-induced OptoRAF1 activation in mouse neural progenitor cells promotes cell proliferation and increases expression of glial markers and glia-enriched genes.

We found that early light-induced OptoRAF1 activation in neural progenitor cells promotes cell proliferation and increased expression of glial markers and glia-enriched genes.
Claim 4functional effectsupports2020Source 1needs review

Early light-induced OptoRAF1 activation in mouse neural progenitor cells promotes cell proliferation and increases expression of glial markers and glia-enriched genes.

We found that early light-induced OptoRAF1 activation in neural progenitor cells promotes cell proliferation and increased expression of glial markers and glia-enriched genes.
Claim 5functional effectsupports2020Source 1needs review

Early light-induced OptoRAF1 activation in mouse neural progenitor cells promotes cell proliferation and increases expression of glial markers and glia-enriched genes.

We found that early light-induced OptoRAF1 activation in neural progenitor cells promotes cell proliferation and increased expression of glial markers and glia-enriched genes.
Claim 6functional effectsupports2020Source 1needs review

Early light-induced OptoRAF1 activation in mouse neural progenitor cells promotes cell proliferation and increases expression of glial markers and glia-enriched genes.

We found that early light-induced OptoRAF1 activation in neural progenitor cells promotes cell proliferation and increased expression of glial markers and glia-enriched genes.
Claim 7functional effectsupports2020Source 1needs review

Early light-induced OptoRAF1 activation in mouse neural progenitor cells promotes cell proliferation and increases expression of glial markers and glia-enriched genes.

We found that early light-induced OptoRAF1 activation in neural progenitor cells promotes cell proliferation and increased expression of glial markers and glia-enriched genes.
Claim 8functional effectsupports2020Source 1needs review

Early light-induced OptoRAF1 activation in mouse neural progenitor cells promotes cell proliferation and increases expression of glial markers and glia-enriched genes.

We found that early light-induced OptoRAF1 activation in neural progenitor cells promotes cell proliferation and increased expression of glial markers and glia-enriched genes.
Claim 9functional effectsupports2020Source 1needs review

Early light-induced OptoRAF1 activation in mouse neural progenitor cells promotes cell proliferation and increases expression of glial markers and glia-enriched genes.

We found that early light-induced OptoRAF1 activation in neural progenitor cells promotes cell proliferation and increased expression of glial markers and glia-enriched genes.
Claim 10functional effectsupports2020Source 1needs review

Early light-induced OptoRAF1 activation in mouse neural progenitor cells promotes cell proliferation and increases expression of glial markers and glia-enriched genes.

We found that early light-induced OptoRAF1 activation in neural progenitor cells promotes cell proliferation and increased expression of glial markers and glia-enriched genes.
Claim 11functional effectsupports2020Source 1needs review

Early light-induced OptoRAF1 activation in mouse neural progenitor cells promotes cell proliferation and increases expression of glial markers and glia-enriched genes.

We found that early light-induced OptoRAF1 activation in neural progenitor cells promotes cell proliferation and increased expression of glial markers and glia-enriched genes.
Claim 12functional effectsupports2020Source 1needs review

Early light-induced OptoRAF1 activation in mouse neural progenitor cells promotes cell proliferation and increases expression of glial markers and glia-enriched genes.

We found that early light-induced OptoRAF1 activation in neural progenitor cells promotes cell proliferation and increased expression of glial markers and glia-enriched genes.
Claim 13functional effectsupports2020Source 1needs review

Early light-induced OptoRAF1 activation in mouse neural progenitor cells promotes cell proliferation and increases expression of glial markers and glia-enriched genes.

We found that early light-induced OptoRAF1 activation in neural progenitor cells promotes cell proliferation and increased expression of glial markers and glia-enriched genes.
Claim 14functional effectsupports2020Source 1needs review

Early light-induced OptoRAF1 activation in mouse neural progenitor cells promotes cell proliferation and increases expression of glial markers and glia-enriched genes.

We found that early light-induced OptoRAF1 activation in neural progenitor cells promotes cell proliferation and increased expression of glial markers and glia-enriched genes.
Claim 15functional effectsupports2020Source 1needs review

Early light-induced OptoRAF1 activation in mouse neural progenitor cells promotes cell proliferation and increases expression of glial markers and glia-enriched genes.

We found that early light-induced OptoRAF1 activation in neural progenitor cells promotes cell proliferation and increased expression of glial markers and glia-enriched genes.
Claim 16functional effectsupports2020Source 1needs review

Early light-induced OptoRAF1 activation in mouse neural progenitor cells promotes cell proliferation and increases expression of glial markers and glia-enriched genes.

We found that early light-induced OptoRAF1 activation in neural progenitor cells promotes cell proliferation and increased expression of glial markers and glia-enriched genes.
Claim 17functional effectsupports2020Source 1needs review

Early light-induced OptoRAF1 activation in mouse neural progenitor cells promotes cell proliferation and increases expression of glial markers and glia-enriched genes.

We found that early light-induced OptoRAF1 activation in neural progenitor cells promotes cell proliferation and increased expression of glial markers and glia-enriched genes.
Claim 18functional specificitymixed2020Source 1needs review

OptoRAF1 activation does not significantly affect neurogenesis but promotes neuronal neurite growth.

In addition, activation of OptoRAF1 did not have a significant effect on neurogenesis, but was able to promote neuronal neurite growth.
Claim 19functional specificitymixed2020Source 1needs review

OptoRAF1 activation does not significantly affect neurogenesis but promotes neuronal neurite growth.

In addition, activation of OptoRAF1 did not have a significant effect on neurogenesis, but was able to promote neuronal neurite growth.
Claim 20functional specificitymixed2020Source 1needs review

OptoRAF1 activation does not significantly affect neurogenesis but promotes neuronal neurite growth.

In addition, activation of OptoRAF1 did not have a significant effect on neurogenesis, but was able to promote neuronal neurite growth.
Claim 21functional specificitymixed2020Source 1needs review

OptoRAF1 activation does not significantly affect neurogenesis but promotes neuronal neurite growth.

In addition, activation of OptoRAF1 did not have a significant effect on neurogenesis, but was able to promote neuronal neurite growth.
Claim 22functional specificitymixed2020Source 1needs review

OptoRAF1 activation does not significantly affect neurogenesis but promotes neuronal neurite growth.

In addition, activation of OptoRAF1 did not have a significant effect on neurogenesis, but was able to promote neuronal neurite growth.
Claim 23functional specificitymixed2020Source 1needs review

OptoRAF1 activation does not significantly affect neurogenesis but promotes neuronal neurite growth.

In addition, activation of OptoRAF1 did not have a significant effect on neurogenesis, but was able to promote neuronal neurite growth.
Claim 24functional specificitymixed2020Source 1needs review

OptoRAF1 activation does not significantly affect neurogenesis but promotes neuronal neurite growth.

In addition, activation of OptoRAF1 did not have a significant effect on neurogenesis, but was able to promote neuronal neurite growth.
Claim 25functional specificitymixed2020Source 1needs review

OptoRAF1 activation does not significantly affect neurogenesis but promotes neuronal neurite growth.

In addition, activation of OptoRAF1 did not have a significant effect on neurogenesis, but was able to promote neuronal neurite growth.
Claim 26functional specificitymixed2020Source 1needs review

OptoRAF1 activation does not significantly affect neurogenesis but promotes neuronal neurite growth.

In addition, activation of OptoRAF1 did not have a significant effect on neurogenesis, but was able to promote neuronal neurite growth.
Claim 27functional specificitymixed2020Source 1needs review

OptoRAF1 activation does not significantly affect neurogenesis but promotes neuronal neurite growth.

In addition, activation of OptoRAF1 did not have a significant effect on neurogenesis, but was able to promote neuronal neurite growth.
Claim 28functional specificitymixed2020Source 1needs review

OptoRAF1 activation does not significantly affect neurogenesis but promotes neuronal neurite growth.

In addition, activation of OptoRAF1 did not have a significant effect on neurogenesis, but was able to promote neuronal neurite growth.
Claim 29functional specificitymixed2020Source 1needs review

OptoRAF1 activation does not significantly affect neurogenesis but promotes neuronal neurite growth.

In addition, activation of OptoRAF1 did not have a significant effect on neurogenesis, but was able to promote neuronal neurite growth.
Claim 30functional specificitymixed2020Source 1needs review

OptoRAF1 activation does not significantly affect neurogenesis but promotes neuronal neurite growth.

In addition, activation of OptoRAF1 did not have a significant effect on neurogenesis, but was able to promote neuronal neurite growth.
Claim 31functional specificitymixed2020Source 1needs review

OptoRAF1 activation does not significantly affect neurogenesis but promotes neuronal neurite growth.

In addition, activation of OptoRAF1 did not have a significant effect on neurogenesis, but was able to promote neuronal neurite growth.
Claim 32functional specificitymixed2020Source 1needs review

OptoRAF1 activation does not significantly affect neurogenesis but promotes neuronal neurite growth.

In addition, activation of OptoRAF1 did not have a significant effect on neurogenesis, but was able to promote neuronal neurite growth.
Claim 33functional specificitymixed2020Source 1needs review

OptoRAF1 activation does not significantly affect neurogenesis but promotes neuronal neurite growth.

In addition, activation of OptoRAF1 did not have a significant effect on neurogenesis, but was able to promote neuronal neurite growth.
Claim 34functional specificitymixed2020Source 1needs review

OptoRAF1 activation does not significantly affect neurogenesis but promotes neuronal neurite growth.

In addition, activation of OptoRAF1 did not have a significant effect on neurogenesis, but was able to promote neuronal neurite growth.
Claim 35mechanism of actionsupports2020Source 1needs review

OptoRAF1 enables reversible activation of the RAF/MEK/ERK pathway by blue light-driven plasma membrane recruitment of RAF1 using the CRY2/CIB1 dimerizer system.

OptoRAF1 allows for reversible activation of the RAF/MEK/ERK pathway via plasma membrane recruitment of RAF1 based on blue light-sensitive protein dimerizer CRY2/CIB1.
Claim 36mechanism of actionsupports2020Source 1needs review

OptoRAF1 enables reversible activation of the RAF/MEK/ERK pathway by blue light-driven plasma membrane recruitment of RAF1 using the CRY2/CIB1 dimerizer system.

OptoRAF1 allows for reversible activation of the RAF/MEK/ERK pathway via plasma membrane recruitment of RAF1 based on blue light-sensitive protein dimerizer CRY2/CIB1.
Claim 37mechanism of actionsupports2020Source 1needs review

OptoRAF1 enables reversible activation of the RAF/MEK/ERK pathway by blue light-driven plasma membrane recruitment of RAF1 using the CRY2/CIB1 dimerizer system.

OptoRAF1 allows for reversible activation of the RAF/MEK/ERK pathway via plasma membrane recruitment of RAF1 based on blue light-sensitive protein dimerizer CRY2/CIB1.
Claim 38mechanism of actionsupports2020Source 1needs review

OptoRAF1 enables reversible activation of the RAF/MEK/ERK pathway by blue light-driven plasma membrane recruitment of RAF1 using the CRY2/CIB1 dimerizer system.

OptoRAF1 allows for reversible activation of the RAF/MEK/ERK pathway via plasma membrane recruitment of RAF1 based on blue light-sensitive protein dimerizer CRY2/CIB1.
Claim 39mechanism of actionsupports2020Source 1needs review

OptoRAF1 enables reversible activation of the RAF/MEK/ERK pathway by blue light-driven plasma membrane recruitment of RAF1 using the CRY2/CIB1 dimerizer system.

OptoRAF1 allows for reversible activation of the RAF/MEK/ERK pathway via plasma membrane recruitment of RAF1 based on blue light-sensitive protein dimerizer CRY2/CIB1.
Claim 40mechanism of actionsupports2020Source 1needs review

OptoRAF1 enables reversible activation of the RAF/MEK/ERK pathway by blue light-driven plasma membrane recruitment of RAF1 using the CRY2/CIB1 dimerizer system.

OptoRAF1 allows for reversible activation of the RAF/MEK/ERK pathway via plasma membrane recruitment of RAF1 based on blue light-sensitive protein dimerizer CRY2/CIB1.
Claim 41mechanism of actionsupports2020Source 1needs review

OptoRAF1 enables reversible activation of the RAF/MEK/ERK pathway by blue light-driven plasma membrane recruitment of RAF1 using the CRY2/CIB1 dimerizer system.

OptoRAF1 allows for reversible activation of the RAF/MEK/ERK pathway via plasma membrane recruitment of RAF1 based on blue light-sensitive protein dimerizer CRY2/CIB1.
Claim 42mechanism of actionsupports2020Source 1needs review

OptoRAF1 enables reversible activation of the RAF/MEK/ERK pathway by blue light-driven plasma membrane recruitment of RAF1 using the CRY2/CIB1 dimerizer system.

OptoRAF1 allows for reversible activation of the RAF/MEK/ERK pathway via plasma membrane recruitment of RAF1 based on blue light-sensitive protein dimerizer CRY2/CIB1.
Claim 43mechanism of actionsupports2020Source 1needs review

OptoRAF1 enables reversible activation of the RAF/MEK/ERK pathway by blue light-driven plasma membrane recruitment of RAF1 using the CRY2/CIB1 dimerizer system.

OptoRAF1 allows for reversible activation of the RAF/MEK/ERK pathway via plasma membrane recruitment of RAF1 based on blue light-sensitive protein dimerizer CRY2/CIB1.
Claim 44mechanism of actionsupports2020Source 1needs review

OptoRAF1 enables reversible activation of the RAF/MEK/ERK pathway by blue light-driven plasma membrane recruitment of RAF1 using the CRY2/CIB1 dimerizer system.

OptoRAF1 allows for reversible activation of the RAF/MEK/ERK pathway via plasma membrane recruitment of RAF1 based on blue light-sensitive protein dimerizer CRY2/CIB1.
Claim 45mechanism of actionsupports2020Source 1needs review

OptoRAF1 enables reversible activation of the RAF/MEK/ERK pathway by blue light-driven plasma membrane recruitment of RAF1 using the CRY2/CIB1 dimerizer system.

OptoRAF1 allows for reversible activation of the RAF/MEK/ERK pathway via plasma membrane recruitment of RAF1 based on blue light-sensitive protein dimerizer CRY2/CIB1.
Claim 46mechanism of actionsupports2020Source 1needs review

OptoRAF1 enables reversible activation of the RAF/MEK/ERK pathway by blue light-driven plasma membrane recruitment of RAF1 using the CRY2/CIB1 dimerizer system.

OptoRAF1 allows for reversible activation of the RAF/MEK/ERK pathway via plasma membrane recruitment of RAF1 based on blue light-sensitive protein dimerizer CRY2/CIB1.
Claim 47mechanism of actionsupports2020Source 1needs review

OptoRAF1 enables reversible activation of the RAF/MEK/ERK pathway by blue light-driven plasma membrane recruitment of RAF1 using the CRY2/CIB1 dimerizer system.

OptoRAF1 allows for reversible activation of the RAF/MEK/ERK pathway via plasma membrane recruitment of RAF1 based on blue light-sensitive protein dimerizer CRY2/CIB1.
Claim 48mechanism of actionsupports2020Source 1needs review

OptoRAF1 enables reversible activation of the RAF/MEK/ERK pathway by blue light-driven plasma membrane recruitment of RAF1 using the CRY2/CIB1 dimerizer system.

OptoRAF1 allows for reversible activation of the RAF/MEK/ERK pathway via plasma membrane recruitment of RAF1 based on blue light-sensitive protein dimerizer CRY2/CIB1.
Claim 49mechanism of actionsupports2020Source 1needs review

OptoRAF1 enables reversible activation of the RAF/MEK/ERK pathway by blue light-driven plasma membrane recruitment of RAF1 using the CRY2/CIB1 dimerizer system.

OptoRAF1 allows for reversible activation of the RAF/MEK/ERK pathway via plasma membrane recruitment of RAF1 based on blue light-sensitive protein dimerizer CRY2/CIB1.
Claim 50mechanism of actionsupports2020Source 1needs review

OptoRAF1 enables reversible activation of the RAF/MEK/ERK pathway by blue light-driven plasma membrane recruitment of RAF1 using the CRY2/CIB1 dimerizer system.

OptoRAF1 allows for reversible activation of the RAF/MEK/ERK pathway via plasma membrane recruitment of RAF1 based on blue light-sensitive protein dimerizer CRY2/CIB1.
Claim 51mechanism of actionsupports2020Source 1needs review

OptoRAF1 enables reversible activation of the RAF/MEK/ERK pathway by blue light-driven plasma membrane recruitment of RAF1 using the CRY2/CIB1 dimerizer system.

OptoRAF1 allows for reversible activation of the RAF/MEK/ERK pathway via plasma membrane recruitment of RAF1 based on blue light-sensitive protein dimerizer CRY2/CIB1.
Claim 52timing dependencesupports2020Source 1needs review

Delayed OptoRAF1 activation in differentiated mouse neural progenitors has little effect on glial marker expression, indicating that RAF1 promotes astrocytogenesis only within a short time window.

However, delayed OptoRAF1 activation in differentiated neural progenitor had little effect on glia marker expression, suggesting that RAF1 is required to promote astrocytogenesis only within a short time window.
Claim 53timing dependencesupports2020Source 1needs review

Delayed OptoRAF1 activation in differentiated mouse neural progenitors has little effect on glial marker expression, indicating that RAF1 promotes astrocytogenesis only within a short time window.

However, delayed OptoRAF1 activation in differentiated neural progenitor had little effect on glia marker expression, suggesting that RAF1 is required to promote astrocytogenesis only within a short time window.
Claim 54timing dependencesupports2020Source 1needs review

Delayed OptoRAF1 activation in differentiated mouse neural progenitors has little effect on glial marker expression, indicating that RAF1 promotes astrocytogenesis only within a short time window.

However, delayed OptoRAF1 activation in differentiated neural progenitor had little effect on glia marker expression, suggesting that RAF1 is required to promote astrocytogenesis only within a short time window.
Claim 55timing dependencesupports2020Source 1needs review

Delayed OptoRAF1 activation in differentiated mouse neural progenitors has little effect on glial marker expression, indicating that RAF1 promotes astrocytogenesis only within a short time window.

However, delayed OptoRAF1 activation in differentiated neural progenitor had little effect on glia marker expression, suggesting that RAF1 is required to promote astrocytogenesis only within a short time window.
Claim 56timing dependencesupports2020Source 1needs review

Delayed OptoRAF1 activation in differentiated mouse neural progenitors has little effect on glial marker expression, indicating that RAF1 promotes astrocytogenesis only within a short time window.

However, delayed OptoRAF1 activation in differentiated neural progenitor had little effect on glia marker expression, suggesting that RAF1 is required to promote astrocytogenesis only within a short time window.
Claim 57timing dependencesupports2020Source 1needs review

Delayed OptoRAF1 activation in differentiated mouse neural progenitors has little effect on glial marker expression, indicating that RAF1 promotes astrocytogenesis only within a short time window.

However, delayed OptoRAF1 activation in differentiated neural progenitor had little effect on glia marker expression, suggesting that RAF1 is required to promote astrocytogenesis only within a short time window.
Claim 58timing dependencesupports2020Source 1needs review

Delayed OptoRAF1 activation in differentiated mouse neural progenitors has little effect on glial marker expression, indicating that RAF1 promotes astrocytogenesis only within a short time window.

However, delayed OptoRAF1 activation in differentiated neural progenitor had little effect on glia marker expression, suggesting that RAF1 is required to promote astrocytogenesis only within a short time window.
Claim 59timing dependencesupports2020Source 1needs review

Delayed OptoRAF1 activation in differentiated mouse neural progenitors has little effect on glial marker expression, indicating that RAF1 promotes astrocytogenesis only within a short time window.

However, delayed OptoRAF1 activation in differentiated neural progenitor had little effect on glia marker expression, suggesting that RAF1 is required to promote astrocytogenesis only within a short time window.
Claim 60timing dependencesupports2020Source 1needs review

Delayed OptoRAF1 activation in differentiated mouse neural progenitors has little effect on glial marker expression, indicating that RAF1 promotes astrocytogenesis only within a short time window.

However, delayed OptoRAF1 activation in differentiated neural progenitor had little effect on glia marker expression, suggesting that RAF1 is required to promote astrocytogenesis only within a short time window.
Claim 61timing dependencesupports2020Source 1needs review

Delayed OptoRAF1 activation in differentiated mouse neural progenitors has little effect on glial marker expression, indicating that RAF1 promotes astrocytogenesis only within a short time window.

However, delayed OptoRAF1 activation in differentiated neural progenitor had little effect on glia marker expression, suggesting that RAF1 is required to promote astrocytogenesis only within a short time window.
Claim 62timing dependencesupports2020Source 1needs review

Delayed OptoRAF1 activation in differentiated mouse neural progenitors has little effect on glial marker expression, indicating that RAF1 promotes astrocytogenesis only within a short time window.

However, delayed OptoRAF1 activation in differentiated neural progenitor had little effect on glia marker expression, suggesting that RAF1 is required to promote astrocytogenesis only within a short time window.
Claim 63timing dependencesupports2020Source 1needs review

Delayed OptoRAF1 activation in differentiated mouse neural progenitors has little effect on glial marker expression, indicating that RAF1 promotes astrocytogenesis only within a short time window.

However, delayed OptoRAF1 activation in differentiated neural progenitor had little effect on glia marker expression, suggesting that RAF1 is required to promote astrocytogenesis only within a short time window.
Claim 64timing dependencesupports2020Source 1needs review

Delayed OptoRAF1 activation in differentiated mouse neural progenitors has little effect on glial marker expression, indicating that RAF1 promotes astrocytogenesis only within a short time window.

However, delayed OptoRAF1 activation in differentiated neural progenitor had little effect on glia marker expression, suggesting that RAF1 is required to promote astrocytogenesis only within a short time window.
Claim 65timing dependencesupports2020Source 1needs review

Delayed OptoRAF1 activation in differentiated mouse neural progenitors has little effect on glial marker expression, indicating that RAF1 promotes astrocytogenesis only within a short time window.

However, delayed OptoRAF1 activation in differentiated neural progenitor had little effect on glia marker expression, suggesting that RAF1 is required to promote astrocytogenesis only within a short time window.
Claim 66timing dependencesupports2020Source 1needs review

Delayed OptoRAF1 activation in differentiated mouse neural progenitors has little effect on glial marker expression, indicating that RAF1 promotes astrocytogenesis only within a short time window.

However, delayed OptoRAF1 activation in differentiated neural progenitor had little effect on glia marker expression, suggesting that RAF1 is required to promote astrocytogenesis only within a short time window.
Claim 67timing dependencesupports2020Source 1needs review

Delayed OptoRAF1 activation in differentiated mouse neural progenitors has little effect on glial marker expression, indicating that RAF1 promotes astrocytogenesis only within a short time window.

However, delayed OptoRAF1 activation in differentiated neural progenitor had little effect on glia marker expression, suggesting that RAF1 is required to promote astrocytogenesis only within a short time window.
Claim 68timing dependencesupports2020Source 1needs review

Delayed OptoRAF1 activation in differentiated mouse neural progenitors has little effect on glial marker expression, indicating that RAF1 promotes astrocytogenesis only within a short time window.

However, delayed OptoRAF1 activation in differentiated neural progenitor had little effect on glia marker expression, suggesting that RAF1 is required to promote astrocytogenesis only within a short time window.

Approval Evidence

1 source4 linked approval claimsfirst-pass slug optoraf1
using an optogenetic RAF1 system (OptoRAF1). OptoRAF1 allows for reversible activation of the RAF/MEK/ERK pathway via plasma membrane recruitment of RAF1 based on blue light-sensitive protein dimerizer CRY2/CIB1.

Source:

functional effectsupports

Early light-induced OptoRAF1 activation in mouse neural progenitor cells promotes cell proliferation and increases expression of glial markers and glia-enriched genes.

We found that early light-induced OptoRAF1 activation in neural progenitor cells promotes cell proliferation and increased expression of glial markers and glia-enriched genes.

Source:

functional specificitymixed

OptoRAF1 activation does not significantly affect neurogenesis but promotes neuronal neurite growth.

In addition, activation of OptoRAF1 did not have a significant effect on neurogenesis, but was able to promote neuronal neurite growth.

Source:

mechanism of actionsupports

OptoRAF1 enables reversible activation of the RAF/MEK/ERK pathway by blue light-driven plasma membrane recruitment of RAF1 using the CRY2/CIB1 dimerizer system.

OptoRAF1 allows for reversible activation of the RAF/MEK/ERK pathway via plasma membrane recruitment of RAF1 based on blue light-sensitive protein dimerizer CRY2/CIB1.

Source:

timing dependencesupports

Delayed OptoRAF1 activation in differentiated mouse neural progenitors has little effect on glial marker expression, indicating that RAF1 promotes astrocytogenesis only within a short time window.

However, delayed OptoRAF1 activation in differentiated neural progenitor had little effect on glia marker expression, suggesting that RAF1 is required to promote astrocytogenesis only within a short time window.

Source:

Comparisons

Source-backed strengths

The reported system is reversible and directly couples blue light input to plasma membrane recruitment of RAF1 through CRY2/CIB1. In mouse neural progenitor cells, early activation promoted cell proliferation, increased glial markers and glia-enriched genes, and promoted neuronal neurite growth while not significantly affecting neurogenesis.

Compared with Cry2/CIB

OptoRAF1 and Cry2/CIB address a similar problem space because they share localization, recombination.

Shared frame: same top-level item type; shared target processes: localization, recombination; shared mechanisms: heterodimerization; same primary input modality: light

OptoRAF1 and CRY2-talin/CIBN-CAAX optogenetic plasma membrane recruitment system address a similar problem space because they share localization, recombination.

Shared frame: same top-level item type; shared target processes: localization, recombination; shared mechanisms: heterodimerization, membrane_recruitment; same primary input modality: light

Strengths here: appears more independently replicated; looks easier to implement in practice.

Compared with iLID/SspB

OptoRAF1 and iLID/SspB address a similar problem space because they share localization, recombination.

Shared frame: same top-level item type; shared target processes: localization, recombination; shared mechanisms: heterodimerization, membrane recruitment, membrane_recruitment; same primary input modality: light

Relative tradeoffs: appears more independently replicated.

Ranked Citations

  1. 1.
    StructuralSource 1Journal of Molecular Biology2020Claim 15Claim 17Claim 17

    Extracted from this source document.