Toolkit/intracellular spatially segregated reporters of optoPAK1 activity

intracellular spatially segregated reporters of optoPAK1 activity

Multi-Component Switch·Research·Since 2022

Also known as: corresponding biosensor

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

Summary

Intracellular spatially segregated reporters of optoPAK1 activity are genetically designed reporter constructs intended to report optoPAK1-dependent phosphorylation at defined intracellular locations. The available evidence indicates that they were created alongside the light-responsive PAK1 analog optoPAK1 to monitor its activity after light-triggered relocalization.

Usefulness & Problems

Why this is useful

These reporters are useful for assessing where within the cell optoPAK1 activity occurs after illumination-driven recruitment to specified intracellular sites. They address the need to couple optogenetic kinase targeting with location-resolved readouts of kinase action.

Problem solved

The tool helps solve the problem of measuring optoPAK1 activity in a spatially resolved manner inside cells rather than only inferring activity from bulk or nonlocalized outputs. The evidence supports intended use as intracellular reporters, but does not provide detailed quantitative benchmarking in the supplied material.

Taxonomy & Function

Primary hierarchy

Mechanism Branch

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

Target processes

No target processes tagged yet.

Input: Light

Implementation Constraints

Implementation appears to require co-expression with optoPAK1, a genetically expressed light-responsive PAK1 analog engineered for low dark-state activity and constitutive activity independent of endogenous regulation. The reporters are described only as intracellular spatially segregated constructs, so practical details such as targeting motifs, fluorophores, illumination parameters, and host system are not specified in the supplied evidence.

The supplied evidence does not describe reporter architecture, dynamic range, phosphorylation site sequence, temporal resolution, or validation across multiple compartments or cell types. Independent replication is not provided in the supplied material, and performance appears supported only by the originating study.

Validation

Cell-freeBacteriaMammalianMouseHumanTherapeuticIndep. Replication

Supporting Sources

Ranked Claims

Claim 1design propertysupports2022Source 1needs review

OptoPAK1 was designed to function independently of endogenous biochemical regulation in a constitutively active manner with minimal activity in the dark state.

OptoPAK1 was designed to function independently of endogenous biochemical regulation in a constitutively active manner with minimal activity in the dark state.
Claim 2design propertysupports2022Source 1needs review

OptoPAK1 was designed to function independently of endogenous biochemical regulation in a constitutively active manner with minimal activity in the dark state.

OptoPAK1 was designed to function independently of endogenous biochemical regulation in a constitutively active manner with minimal activity in the dark state.
Claim 3design propertysupports2022Source 1needs review

OptoPAK1 was designed to function independently of endogenous biochemical regulation in a constitutively active manner with minimal activity in the dark state.

OptoPAK1 was designed to function independently of endogenous biochemical regulation in a constitutively active manner with minimal activity in the dark state.
Claim 4design propertysupports2022Source 1needs review

OptoPAK1 was designed to function independently of endogenous biochemical regulation in a constitutively active manner with minimal activity in the dark state.

OptoPAK1 was designed to function independently of endogenous biochemical regulation in a constitutively active manner with minimal activity in the dark state.
Claim 5design propertysupports2022Source 1needs review

OptoPAK1 was designed to function independently of endogenous biochemical regulation in a constitutively active manner with minimal activity in the dark state.

OptoPAK1 was designed to function independently of endogenous biochemical regulation in a constitutively active manner with minimal activity in the dark state.
Claim 6design propertysupports2022Source 1needs review

OptoPAK1 was designed to function independently of endogenous biochemical regulation in a constitutively active manner with minimal activity in the dark state.

OptoPAK1 was designed to function independently of endogenous biochemical regulation in a constitutively active manner with minimal activity in the dark state.
Claim 7design propertysupports2022Source 1needs review

OptoPAK1 was designed to function independently of endogenous biochemical regulation in a constitutively active manner with minimal activity in the dark state.

OptoPAK1 was designed to function independently of endogenous biochemical regulation in a constitutively active manner with minimal activity in the dark state.
Claim 8engineering resultsupports2022Source 1needs review

The authors developed a genetically expressed, light-responsive optogenetic analog of PAK1 called optoPAK1.

We developed an engineering strategy to construct a genetically expressed, light-responsive optogenetic analog of PAK1 (optoPAK1)
Claim 9engineering resultsupports2022Source 1needs review

The authors developed a genetically expressed, light-responsive optogenetic analog of PAK1 called optoPAK1.

We developed an engineering strategy to construct a genetically expressed, light-responsive optogenetic analog of PAK1 (optoPAK1)
Claim 10engineering resultsupports2022Source 1needs review

The authors developed a genetically expressed, light-responsive optogenetic analog of PAK1 called optoPAK1.

We developed an engineering strategy to construct a genetically expressed, light-responsive optogenetic analog of PAK1 (optoPAK1)
Claim 11engineering resultsupports2022Source 1needs review

The authors developed a genetically expressed, light-responsive optogenetic analog of PAK1 called optoPAK1.

We developed an engineering strategy to construct a genetically expressed, light-responsive optogenetic analog of PAK1 (optoPAK1)
Claim 12engineering resultsupports2022Source 1needs review

The authors developed a genetically expressed, light-responsive optogenetic analog of PAK1 called optoPAK1.

We developed an engineering strategy to construct a genetically expressed, light-responsive optogenetic analog of PAK1 (optoPAK1)
Claim 13engineering resultsupports2022Source 1needs review

The authors developed a genetically expressed, light-responsive optogenetic analog of PAK1 called optoPAK1.

We developed an engineering strategy to construct a genetically expressed, light-responsive optogenetic analog of PAK1 (optoPAK1)
Claim 14engineering resultsupports2022Source 1needs review

The authors developed a genetically expressed, light-responsive optogenetic analog of PAK1 called optoPAK1.

We developed an engineering strategy to construct a genetically expressed, light-responsive optogenetic analog of PAK1 (optoPAK1)
Claim 15localization controlsupports2022Source 1needs review

Upon illumination, optoPAK1 migrates to specified intracellular sites.

upon illumination, optoPAK1 migrates to specified intracellular sites
Claim 16localization controlsupports2022Source 1needs review

Upon illumination, optoPAK1 migrates to specified intracellular sites.

upon illumination, optoPAK1 migrates to specified intracellular sites
Claim 17localization controlsupports2022Source 1needs review

Upon illumination, optoPAK1 migrates to specified intracellular sites.

upon illumination, optoPAK1 migrates to specified intracellular sites
Claim 18localization controlsupports2022Source 1needs review

Upon illumination, optoPAK1 migrates to specified intracellular sites.

upon illumination, optoPAK1 migrates to specified intracellular sites
Claim 19localization controlsupports2022Source 1needs review

Upon illumination, optoPAK1 migrates to specified intracellular sites.

upon illumination, optoPAK1 migrates to specified intracellular sites
Claim 20localization controlsupports2022Source 1needs review

Upon illumination, optoPAK1 migrates to specified intracellular sites.

upon illumination, optoPAK1 migrates to specified intracellular sites
Claim 21localization controlsupports2022Source 1needs review

Upon illumination, optoPAK1 migrates to specified intracellular sites.

upon illumination, optoPAK1 migrates to specified intracellular sites
Claim 22mechanism of controlsupports2022Source 1needs review

The improved light-induced dimer system iLid was used to recruit and photoactivate the optoPAK1 protein analog at discrete subcellular domains.

We employed the improved light-induced dimer (iLid) system as a means to recruit and photoactivate the protein analog at discrete subcellular domains.
Claim 23mechanism of controlsupports2022Source 1needs review

The improved light-induced dimer system iLid was used to recruit and photoactivate the optoPAK1 protein analog at discrete subcellular domains.

We employed the improved light-induced dimer (iLid) system as a means to recruit and photoactivate the protein analog at discrete subcellular domains.
Claim 24mechanism of controlsupports2022Source 1needs review

The improved light-induced dimer system iLid was used to recruit and photoactivate the optoPAK1 protein analog at discrete subcellular domains.

We employed the improved light-induced dimer (iLid) system as a means to recruit and photoactivate the protein analog at discrete subcellular domains.
Claim 25mechanism of controlsupports2022Source 1needs review

The improved light-induced dimer system iLid was used to recruit and photoactivate the optoPAK1 protein analog at discrete subcellular domains.

We employed the improved light-induced dimer (iLid) system as a means to recruit and photoactivate the protein analog at discrete subcellular domains.
Claim 26mechanism of controlsupports2022Source 1needs review

The improved light-induced dimer system iLid was used to recruit and photoactivate the optoPAK1 protein analog at discrete subcellular domains.

We employed the improved light-induced dimer (iLid) system as a means to recruit and photoactivate the protein analog at discrete subcellular domains.
Claim 27mechanism of controlsupports2022Source 1needs review

The improved light-induced dimer system iLid was used to recruit and photoactivate the optoPAK1 protein analog at discrete subcellular domains.

We employed the improved light-induced dimer (iLid) system as a means to recruit and photoactivate the protein analog at discrete subcellular domains.
Claim 28mechanism of controlsupports2022Source 1needs review

The improved light-induced dimer system iLid was used to recruit and photoactivate the optoPAK1 protein analog at discrete subcellular domains.

We employed the improved light-induced dimer (iLid) system as a means to recruit and photoactivate the protein analog at discrete subcellular domains.
Claim 29reporter responsesupports2022Source 1needs review

Preliminary data indicated that optoPAK1 phosphorylates the designed intracellular reporters in a light-dependent fashion.

preliminary data displayed that optoPAK1 phosphorylates these reporters in a light-dependent fashion
Claim 30reporter responsesupports2022Source 1needs review

Preliminary data indicated that optoPAK1 phosphorylates the designed intracellular reporters in a light-dependent fashion.

preliminary data displayed that optoPAK1 phosphorylates these reporters in a light-dependent fashion
Claim 31reporter responsesupports2022Source 1needs review

Preliminary data indicated that optoPAK1 phosphorylates the designed intracellular reporters in a light-dependent fashion.

preliminary data displayed that optoPAK1 phosphorylates these reporters in a light-dependent fashion
Claim 32reporter responsesupports2022Source 1needs review

Preliminary data indicated that optoPAK1 phosphorylates the designed intracellular reporters in a light-dependent fashion.

preliminary data displayed that optoPAK1 phosphorylates these reporters in a light-dependent fashion
Claim 33reporter responsesupports2022Source 1needs review

Preliminary data indicated that optoPAK1 phosphorylates the designed intracellular reporters in a light-dependent fashion.

preliminary data displayed that optoPAK1 phosphorylates these reporters in a light-dependent fashion
Claim 34reporter responsesupports2022Source 1needs review

Preliminary data indicated that optoPAK1 phosphorylates the designed intracellular reporters in a light-dependent fashion.

preliminary data displayed that optoPAK1 phosphorylates these reporters in a light-dependent fashion
Claim 35reporter responsesupports2022Source 1needs review

Preliminary data indicated that optoPAK1 phosphorylates the designed intracellular reporters in a light-dependent fashion.

preliminary data displayed that optoPAK1 phosphorylates these reporters in a light-dependent fashion

Approval Evidence

1 source1 linked approval claimfirst-pass slug intracellular-spatially-segregated-reporters-of-optopak1-activity
we designed intracellular spatially segregated reporters of optoPAK1 activity

Source:

reporter responsesupports

Preliminary data indicated that optoPAK1 phosphorylates the designed intracellular reporters in a light-dependent fashion.

preliminary data displayed that optoPAK1 phosphorylates these reporters in a light-dependent fashion

Source:

Comparisons

Source-backed strengths

A key strength is the explicit design of spatially segregated intracellular reporters matched to a genetically expressed, light-responsive PAK1 analog. Because optoPAK1 migrates to specified intracellular sites upon illumination, these reporters are positioned to detect activity in a subcellularly controlled context.

Source:

We developed an engineering strategy to construct a genetically expressed, light-responsive optogenetic analog of PAK1 (optoPAK1)

Ranked Citations

  1. 1.
    StructuralSource 1The FASEB Journal2022Claim 1Claim 2Claim 3

    Extracted from this source document.