Toolkit/photo-controlled VP16 transactivation peptide exposure regulators

photo-controlled VP16 transactivation peptide exposure regulators

Construct Pattern·Research·Since 2023

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

Summary

Photo-controlled VP16 transactivation peptide exposure regulators are highly compact optogenetic constructs that control exposure of the VP16 transactivation peptide with blue light. In the reported system, they were used as part of complementary platforms for blue-light-triggered termination of transcriptional activation and were incorporated into the LOOMINA toolbox.

Usefulness & Problems

Why this is useful

These regulators provide an optogenetic route to deactivate transcriptional activation with blue light rather than induce it. The reported integration of LOOMINA with Cas9 as a DNA-binding domain indicates utility for controlling transcription from various endogenous promoters.

Source:

Here, we inverted this mode of action and created two complementary optogenetic systems capable of efficiently terminating transcriptional activation in response to blue light.

Problem solved

The tool addresses the need for compact optogenetic systems that terminate ongoing transcriptional activation in response to blue light. It specifically tackles how to make VP16-based activation conditional on light-controlled peptide exposure within a modular transcription-control framework.

Problem links

Need conditional recombination or state switching

Derived

Photo-controlled VP16 transactivation peptide exposure regulators are highly compact optogenetic constructs that control exposure of the VP16 transactivation peptide with blue light. In the reported system, they were used as part of complementary platforms for blue-light-triggered termination of transcriptional activation and were incorporated into the LOOMINA toolbox.

Need precise spatiotemporal control with light input

Derived

Photo-controlled VP16 transactivation peptide exposure regulators are highly compact optogenetic constructs that control exposure of the VP16 transactivation peptide with blue light. In the reported system, they were used as part of complementary platforms for blue-light-triggered termination of transcriptional activation and were incorporated into the LOOMINA toolbox.

Need tighter control over gene expression timing or amplitude

Derived

Photo-controlled VP16 transactivation peptide exposure regulators are highly compact optogenetic constructs that control exposure of the VP16 transactivation peptide with blue light. In the reported system, they were used as part of complementary platforms for blue-light-triggered termination of transcriptional activation and were incorporated into the LOOMINA toolbox.

Taxonomy & Function

Primary hierarchy

Mechanism Branch

Architecture: A reusable architecture pattern for arranging parts into an engineered system.

Target processes

recombinationtranscription

Input: Light

Implementation Constraints

cofactor dependency: cofactor requirement unknownencoding mode: genetically encodedimplementation constraint: context specific validationimplementation constraint: spectral hardware requirementoperating role: regulator

The available evidence supports that the design centers on photo-controlling exposure of the VP16 transactivation peptide and that the broader LOOMINA system can be combined with Cas9 as a DNA-binding domain. The supplied text does not state the exact construct architecture, chromophore requirements, expression context, or delivery method.

The supplied evidence does not specify the photosensory domain, dynamic range, kinetics, leakiness, or quantitative performance of the VP16 exposure regulators. It also does not provide independent replication, organism-specific validation details, or direct evidence for recombination control by this specific construct pattern.

Validation

Cell-freeBacteriaMammalianMouseHumanTherapeuticIndep. Replication

Supporting Sources

Ranked Claims

Claim 1capabilitysupports2023Source 1needs review

The paper reports two complementary optogenetic systems that terminate transcriptional activation in response to blue light.

Here, we inverted this mode of action and created two complementary optogenetic systems capable of efficiently terminating transcriptional activation in response to blue light.
Claim 2capabilitysupports2023Source 1needs review

The paper reports two complementary optogenetic systems that terminate transcriptional activation in response to blue light.

Here, we inverted this mode of action and created two complementary optogenetic systems capable of efficiently terminating transcriptional activation in response to blue light.
Claim 3capabilitysupports2023Source 1needs review

The paper reports two complementary optogenetic systems that terminate transcriptional activation in response to blue light.

Here, we inverted this mode of action and created two complementary optogenetic systems capable of efficiently terminating transcriptional activation in response to blue light.
Claim 4capabilitysupports2023Source 1needs review

The paper reports two complementary optogenetic systems that terminate transcriptional activation in response to blue light.

Here, we inverted this mode of action and created two complementary optogenetic systems capable of efficiently terminating transcriptional activation in response to blue light.
Claim 5capabilitysupports2023Source 1needs review

The paper reports two complementary optogenetic systems that terminate transcriptional activation in response to blue light.

Here, we inverted this mode of action and created two complementary optogenetic systems capable of efficiently terminating transcriptional activation in response to blue light.
Claim 6capabilitysupports2023Source 1needs review

The paper reports two complementary optogenetic systems that terminate transcriptional activation in response to blue light.

Here, we inverted this mode of action and created two complementary optogenetic systems capable of efficiently terminating transcriptional activation in response to blue light.
Claim 7capabilitysupports2023Source 1needs review

The paper reports two complementary optogenetic systems that terminate transcriptional activation in response to blue light.

Here, we inverted this mode of action and created two complementary optogenetic systems capable of efficiently terminating transcriptional activation in response to blue light.
Claim 8engineering strategysupports2023Source 1needs review

Highly compact regulators were designed by photo-controlling VP16 transactivation peptide exposure.

First, we designed highly compact regulators, by photo-controlling VP16 transactivation peptide exposure.
Claim 9engineering strategysupports2023Source 1needs review

Highly compact regulators were designed by photo-controlling VP16 transactivation peptide exposure.

First, we designed highly compact regulators, by photo-controlling VP16 transactivation peptide exposure.
Claim 10engineering strategysupports2023Source 1needs review

Highly compact regulators were designed by photo-controlling VP16 transactivation peptide exposure.

First, we designed highly compact regulators, by photo-controlling VP16 transactivation peptide exposure.
Claim 11engineering strategysupports2023Source 1needs review

Highly compact regulators were designed by photo-controlling VP16 transactivation peptide exposure.

First, we designed highly compact regulators, by photo-controlling VP16 transactivation peptide exposure.
Claim 12engineering strategysupports2023Source 1needs review

Highly compact regulators were designed by photo-controlling VP16 transactivation peptide exposure.

First, we designed highly compact regulators, by photo-controlling VP16 transactivation peptide exposure.
Claim 13engineering strategysupports2023Source 1needs review

Highly compact regulators were designed by photo-controlling VP16 transactivation peptide exposure.

First, we designed highly compact regulators, by photo-controlling VP16 transactivation peptide exposure.
Claim 14engineering strategysupports2023Source 1needs review

Highly compact regulators were designed by photo-controlling VP16 transactivation peptide exposure.

First, we designed highly compact regulators, by photo-controlling VP16 transactivation peptide exposure.
Claim 15integrationsupports2023Source 1needs review

LOOMINA was integrated with Cas9 as a DNA-binding domain to control transcription from various endogenous promoters.

Leveraging the flexibility of CRISPR systems, we integrated LOOMINA with Cas9 as a DNA-binding domain to control transcription from various endogenous promoters
Claim 16integrationsupports2023Source 1needs review

LOOMINA was integrated with Cas9 as a DNA-binding domain to control transcription from various endogenous promoters.

Leveraging the flexibility of CRISPR systems, we integrated LOOMINA with Cas9 as a DNA-binding domain to control transcription from various endogenous promoters
Claim 17integrationsupports2023Source 1needs review

LOOMINA was integrated with Cas9 as a DNA-binding domain to control transcription from various endogenous promoters.

Leveraging the flexibility of CRISPR systems, we integrated LOOMINA with Cas9 as a DNA-binding domain to control transcription from various endogenous promoters
Claim 18integrationsupports2023Source 1needs review

LOOMINA was integrated with Cas9 as a DNA-binding domain to control transcription from various endogenous promoters.

Leveraging the flexibility of CRISPR systems, we integrated LOOMINA with Cas9 as a DNA-binding domain to control transcription from various endogenous promoters
Claim 19integrationsupports2023Source 1needs review

LOOMINA was integrated with Cas9 as a DNA-binding domain to control transcription from various endogenous promoters.

Leveraging the flexibility of CRISPR systems, we integrated LOOMINA with Cas9 as a DNA-binding domain to control transcription from various endogenous promoters
Claim 20integrationsupports2023Source 1needs review

LOOMINA was integrated with Cas9 as a DNA-binding domain to control transcription from various endogenous promoters.

Leveraging the flexibility of CRISPR systems, we integrated LOOMINA with Cas9 as a DNA-binding domain to control transcription from various endogenous promoters
Claim 21integrationsupports2023Source 1needs review

LOOMINA was integrated with Cas9 as a DNA-binding domain to control transcription from various endogenous promoters.

Leveraging the flexibility of CRISPR systems, we integrated LOOMINA with Cas9 as a DNA-binding domain to control transcription from various endogenous promoters
Claim 22overall assessmentsupports2023Source 1needs review

LOOMINA is a valuable addition to the optogenetic repertoire for transcriptional regulation based on functional and mechanistic results.

Both functionally and mechanistically, LOOMINA represents a valuable addition to the optogenetic repertoire for transcriptional regulation.
Claim 23overall assessmentsupports2023Source 1needs review

LOOMINA is a valuable addition to the optogenetic repertoire for transcriptional regulation based on functional and mechanistic results.

Both functionally and mechanistically, LOOMINA represents a valuable addition to the optogenetic repertoire for transcriptional regulation.
Claim 24overall assessmentsupports2023Source 1needs review

LOOMINA is a valuable addition to the optogenetic repertoire for transcriptional regulation based on functional and mechanistic results.

Both functionally and mechanistically, LOOMINA represents a valuable addition to the optogenetic repertoire for transcriptional regulation.
Claim 25overall assessmentsupports2023Source 1needs review

LOOMINA is a valuable addition to the optogenetic repertoire for transcriptional regulation based on functional and mechanistic results.

Both functionally and mechanistically, LOOMINA represents a valuable addition to the optogenetic repertoire for transcriptional regulation.
Claim 26overall assessmentsupports2023Source 1needs review

LOOMINA is a valuable addition to the optogenetic repertoire for transcriptional regulation based on functional and mechanistic results.

Both functionally and mechanistically, LOOMINA represents a valuable addition to the optogenetic repertoire for transcriptional regulation.
Claim 27overall assessmentsupports2023Source 1needs review

LOOMINA is a valuable addition to the optogenetic repertoire for transcriptional regulation based on functional and mechanistic results.

Both functionally and mechanistically, LOOMINA represents a valuable addition to the optogenetic repertoire for transcriptional regulation.
Claim 28overall assessmentsupports2023Source 1needs review

LOOMINA is a valuable addition to the optogenetic repertoire for transcriptional regulation based on functional and mechanistic results.

Both functionally and mechanistically, LOOMINA represents a valuable addition to the optogenetic repertoire for transcriptional regulation.
Claim 29performancesupports2023Source 1needs review

LOOMINA-Cas9 controlled transcription from various endogenous promoters with exceptionally high dynamic ranges in multiple cell lines, including neuron-like cells.

to control transcription from various endogenous promoters with exceptionally high dynamic ranges in multiple cell lines, including neuron-like cells
dynamic range exceptionally high
Claim 30performancesupports2023Source 1needs review

LOOMINA-Cas9 controlled transcription from various endogenous promoters with exceptionally high dynamic ranges in multiple cell lines, including neuron-like cells.

to control transcription from various endogenous promoters with exceptionally high dynamic ranges in multiple cell lines, including neuron-like cells
dynamic range exceptionally high
Claim 31performancesupports2023Source 1needs review

LOOMINA-Cas9 controlled transcription from various endogenous promoters with exceptionally high dynamic ranges in multiple cell lines, including neuron-like cells.

to control transcription from various endogenous promoters with exceptionally high dynamic ranges in multiple cell lines, including neuron-like cells
dynamic range exceptionally high
Claim 32performancesupports2023Source 1needs review

LOOMINA-Cas9 controlled transcription from various endogenous promoters with exceptionally high dynamic ranges in multiple cell lines, including neuron-like cells.

to control transcription from various endogenous promoters with exceptionally high dynamic ranges in multiple cell lines, including neuron-like cells
dynamic range exceptionally high
Claim 33performancesupports2023Source 1needs review

LOOMINA-Cas9 controlled transcription from various endogenous promoters with exceptionally high dynamic ranges in multiple cell lines, including neuron-like cells.

to control transcription from various endogenous promoters with exceptionally high dynamic ranges in multiple cell lines, including neuron-like cells
dynamic range exceptionally high
Claim 34performancesupports2023Source 1needs review

LOOMINA-Cas9 controlled transcription from various endogenous promoters with exceptionally high dynamic ranges in multiple cell lines, including neuron-like cells.

to control transcription from various endogenous promoters with exceptionally high dynamic ranges in multiple cell lines, including neuron-like cells
dynamic range exceptionally high
Claim 35performancesupports2023Source 1needs review

LOOMINA-Cas9 controlled transcription from various endogenous promoters with exceptionally high dynamic ranges in multiple cell lines, including neuron-like cells.

to control transcription from various endogenous promoters with exceptionally high dynamic ranges in multiple cell lines, including neuron-like cells
dynamic range exceptionally high
Claim 36platform descriptionsupports2023Source 1needs review

LOOMINA is a versatile transcriptional control platform for mammalian cells that is highly adaptable and compatible with various effector proteins.

we engineered LOOMINA ... a versatile transcriptional control platform for mammalian cells that is highly adaptable and compatible with various effector proteins
Claim 37platform descriptionsupports2023Source 1needs review

LOOMINA is a versatile transcriptional control platform for mammalian cells that is highly adaptable and compatible with various effector proteins.

we engineered LOOMINA ... a versatile transcriptional control platform for mammalian cells that is highly adaptable and compatible with various effector proteins
Claim 38platform descriptionsupports2023Source 1needs review

LOOMINA is a versatile transcriptional control platform for mammalian cells that is highly adaptable and compatible with various effector proteins.

we engineered LOOMINA ... a versatile transcriptional control platform for mammalian cells that is highly adaptable and compatible with various effector proteins
Claim 39platform descriptionsupports2023Source 1needs review

LOOMINA is a versatile transcriptional control platform for mammalian cells that is highly adaptable and compatible with various effector proteins.

we engineered LOOMINA ... a versatile transcriptional control platform for mammalian cells that is highly adaptable and compatible with various effector proteins
Claim 40platform descriptionsupports2023Source 1needs review

LOOMINA is a versatile transcriptional control platform for mammalian cells that is highly adaptable and compatible with various effector proteins.

we engineered LOOMINA ... a versatile transcriptional control platform for mammalian cells that is highly adaptable and compatible with various effector proteins
Claim 41platform descriptionsupports2023Source 1needs review

LOOMINA is a versatile transcriptional control platform for mammalian cells that is highly adaptable and compatible with various effector proteins.

we engineered LOOMINA ... a versatile transcriptional control platform for mammalian cells that is highly adaptable and compatible with various effector proteins
Claim 42platform descriptionsupports2023Source 1needs review

LOOMINA is a versatile transcriptional control platform for mammalian cells that is highly adaptable and compatible with various effector proteins.

we engineered LOOMINA ... a versatile transcriptional control platform for mammalian cells that is highly adaptable and compatible with various effector proteins

Approval Evidence

1 source2 linked approval claimsfirst-pass slug photo-controlled-vp16-transactivation-peptide-exposure-regulators
First, we designed highly compact regulators, by photo-controlling VP16 transactivation peptide exposure.

Source:

capabilitysupports

The paper reports two complementary optogenetic systems that terminate transcriptional activation in response to blue light.

Here, we inverted this mode of action and created two complementary optogenetic systems capable of efficiently terminating transcriptional activation in response to blue light.

Source:

engineering strategysupports

Highly compact regulators were designed by photo-controlling VP16 transactivation peptide exposure.

First, we designed highly compact regulators, by photo-controlling VP16 transactivation peptide exposure.

Source:

Comparisons

Source-backed strengths

The source describes these regulators as highly compact, which is a practical design advantage for construct engineering. They were reported within a system that enables blue-light-responsive termination of transcriptional activation, and the broader toolbox was integrated with Cas9 to target various endogenous promoters.

Source:

First, we designed highly compact regulators, by photo-controlling VP16 transactivation peptide exposure.

Source:

to control transcription from various endogenous promoters with exceptionally high dynamic ranges in multiple cell lines, including neuron-like cells

Compared with 4pLRE-cPAOX1

photo-controlled VP16 transactivation peptide exposure regulators and 4pLRE-cPAOX1 address a similar problem space because they share transcription.

Shared frame: same top-level item type; shared target processes: transcription; same primary input modality: light

Compared with pcVP16

photo-controlled VP16 transactivation peptide exposure regulators and pcVP16 address a similar problem space because they share recombination, transcription.

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

photo-controlled VP16 transactivation peptide exposure regulators and phase-separation-engineered optogenetic synthetic transcription factors address a similar problem space because they share recombination, transcription.

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

Ranked Citations

  1. 1.

    Extracted from this source document.