Toolkit/pcVP16

pcVP16

Construct Pattern·Research·Since 2024

Also known as: pcVP16 transactivator, photo-controlling the VP16 (pcVP16) transactivation peptide

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

Summary

pcVP16 is a highly compact optogenetic regulator built by photo-controlling the VP16 transactivation peptide. It is described as a light-responsive construct for regulating transcriptional activation.

Usefulness & Problems

Why this is useful

pcVP16 is useful as a compact light-responsive transactivation module for optogenetic control of gene expression. The supplied evidence supports its design concept, but does not provide direct performance data for pcVP16 itself.

Source:

Leveraging the flexibility of CRISPR systems, we combined LOOMINA with dCas9 to control transcription with blue light from endogenous promoters with exceptionally high dynamic ranges in multiple cell lines.

Source:

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

Problem solved

pcVP16 addresses the need for compact optogenetic regulators that can place transcriptional activation under light control. The available evidence indicates that this is achieved by photo-controlling the VP16 transactivation peptide, but the specific implementation details are not provided.

Source:

Leveraging the flexibility of CRISPR systems, we combined LOOMINA with dCas9 to control transcription with blue light from endogenous promoters with exceptionally high dynamic ranges in multiple cell lines.

Problem links

Need conditional recombination or state switching

Derived

pcVP16 is a highly compact optogenetic regulator built by photo-controlling the VP16 transactivation peptide. It is described as a light-responsive construct for regulating transcriptional activation.

Need precise spatiotemporal control with light input

Derived

pcVP16 is a highly compact optogenetic regulator built by photo-controlling the VP16 transactivation peptide. It is described as a light-responsive construct for regulating transcriptional activation.

Need tighter control over gene expression timing or amplitude

Derived

pcVP16 is a highly compact optogenetic regulator built by photo-controlling the VP16 transactivation peptide. It is described as a light-responsive construct for regulating transcriptional activation.

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

pcVP16 is based on the VP16 transactivation peptide and was engineered by photo-controlling that peptide. The provided evidence does not specify the photosensory domain, construct architecture, cofactors, host system, or delivery method.

The supplied evidence does not report quantitative dynamic range, kinetics, wavelength dependence beyond general light responsiveness, or validation contexts specifically for pcVP16. Claims about blue-light transcriptional control and compatibility with multiple effectors are supported for LOOMINA in the same paper, but are not directly attributed to pcVP16 in the provided evidence.

Validation

Cell-freeBacteriaMammalianMouseHumanTherapeuticIndep. Replication

Supporting Sources

Ranked Claims

Claim 1applicationsupports2024Source 1needs review

LOOMINA combined with dCas9 controls transcription with blue light from endogenous promoters in multiple cell lines and shows exceptionally high dynamic ranges.

Leveraging the flexibility of CRISPR systems, we combined LOOMINA with dCas9 to control transcription with blue light from endogenous promoters with exceptionally high dynamic ranges in multiple cell lines.
Claim 2applicationsupports2024Source 1needs review

LOOMINA combined with dCas9 controls transcription with blue light from endogenous promoters in multiple cell lines and shows exceptionally high dynamic ranges.

Leveraging the flexibility of CRISPR systems, we combined LOOMINA with dCas9 to control transcription with blue light from endogenous promoters with exceptionally high dynamic ranges in multiple cell lines.
Claim 3applicationsupports2024Source 1needs review

LOOMINA combined with dCas9 controls transcription with blue light from endogenous promoters in multiple cell lines and shows exceptionally high dynamic ranges.

Leveraging the flexibility of CRISPR systems, we combined LOOMINA with dCas9 to control transcription with blue light from endogenous promoters with exceptionally high dynamic ranges in multiple cell lines.
Claim 4applicationsupports2024Source 1needs review

LOOMINA combined with dCas9 controls transcription with blue light from endogenous promoters in multiple cell lines and shows exceptionally high dynamic ranges.

Leveraging the flexibility of CRISPR systems, we combined LOOMINA with dCas9 to control transcription with blue light from endogenous promoters with exceptionally high dynamic ranges in multiple cell lines.
Claim 5applicationsupports2024Source 1needs review

LOOMINA combined with dCas9 controls transcription with blue light from endogenous promoters in multiple cell lines and shows exceptionally high dynamic ranges.

Leveraging the flexibility of CRISPR systems, we combined LOOMINA with dCas9 to control transcription with blue light from endogenous promoters with exceptionally high dynamic ranges in multiple cell lines.
Claim 6applicationsupports2024Source 1needs review

LOOMINA combined with dCas9 controls transcription with blue light from endogenous promoters in multiple cell lines and shows exceptionally high dynamic ranges.

Leveraging the flexibility of CRISPR systems, we combined LOOMINA with dCas9 to control transcription with blue light from endogenous promoters with exceptionally high dynamic ranges in multiple cell lines.
Claim 7applicationsupports2024Source 1needs review

LOOMINA combined with dCas9 controls transcription with blue light from endogenous promoters in multiple cell lines and shows exceptionally high dynamic ranges.

Leveraging the flexibility of CRISPR systems, we combined LOOMINA with dCas9 to control transcription with blue light from endogenous promoters with exceptionally high dynamic ranges in multiple cell lines.
Claim 8capabilitysupports2024Source 1needs review

The authors created optogenetic systems capable of efficiently terminating transcriptional activation in response to blue light.

Here, we inverted this mode of action and created optogenetic systems capable of efficiently terminating transcriptional activation in response to blue light.
Claim 9capabilitysupports2024Source 1needs review

The authors created optogenetic systems capable of efficiently terminating transcriptional activation in response to blue light.

Here, we inverted this mode of action and created optogenetic systems capable of efficiently terminating transcriptional activation in response to blue light.
Claim 10capabilitysupports2024Source 1needs review

The authors created optogenetic systems capable of efficiently terminating transcriptional activation in response to blue light.

Here, we inverted this mode of action and created optogenetic systems capable of efficiently terminating transcriptional activation in response to blue light.
Claim 11capabilitysupports2024Source 1needs review

The authors created optogenetic systems capable of efficiently terminating transcriptional activation in response to blue light.

Here, we inverted this mode of action and created optogenetic systems capable of efficiently terminating transcriptional activation in response to blue light.
Claim 12capabilitysupports2024Source 1needs review

The authors created optogenetic systems capable of efficiently terminating transcriptional activation in response to blue light.

Here, we inverted this mode of action and created optogenetic systems capable of efficiently terminating transcriptional activation in response to blue light.
Claim 13capabilitysupports2024Source 1needs review

The authors created optogenetic systems capable of efficiently terminating transcriptional activation in response to blue light.

Here, we inverted this mode of action and created optogenetic systems capable of efficiently terminating transcriptional activation in response to blue light.
Claim 14capabilitysupports2024Source 1needs review

The authors created optogenetic systems capable of efficiently terminating transcriptional activation in response to blue light.

Here, we inverted this mode of action and created optogenetic systems capable of efficiently terminating transcriptional activation in response to blue light.
Claim 15compatibilitysupports2024Source 1needs review

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

Then, applying a two-hybrid strategy, we engineered LOOMINA (light off-operated modular inductor of transcriptional activation), a versatile transcriptional control platform for mammalian cells that is compatible with various effector proteins.
Claim 16compatibilitysupports2024Source 1needs review

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

Then, applying a two-hybrid strategy, we engineered LOOMINA (light off-operated modular inductor of transcriptional activation), a versatile transcriptional control platform for mammalian cells that is compatible with various effector proteins.
Claim 17compatibilitysupports2024Source 1needs review

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

Then, applying a two-hybrid strategy, we engineered LOOMINA (light off-operated modular inductor of transcriptional activation), a versatile transcriptional control platform for mammalian cells that is compatible with various effector proteins.
Claim 18compatibilitysupports2024Source 1needs review

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

Then, applying a two-hybrid strategy, we engineered LOOMINA (light off-operated modular inductor of transcriptional activation), a versatile transcriptional control platform for mammalian cells that is compatible with various effector proteins.
Claim 19compatibilitysupports2024Source 1needs review

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

Then, applying a two-hybrid strategy, we engineered LOOMINA (light off-operated modular inductor of transcriptional activation), a versatile transcriptional control platform for mammalian cells that is compatible with various effector proteins.
Claim 20compatibilitysupports2024Source 1needs review

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

Then, applying a two-hybrid strategy, we engineered LOOMINA (light off-operated modular inductor of transcriptional activation), a versatile transcriptional control platform for mammalian cells that is compatible with various effector proteins.
Claim 21compatibilitysupports2024Source 1needs review

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

Then, applying a two-hybrid strategy, we engineered LOOMINA (light off-operated modular inductor of transcriptional activation), a versatile transcriptional control platform for mammalian cells that is compatible with various effector proteins.
Claim 22designsupports2024Source 1needs review

pcVP16 is a highly compact regulator created by photo-controlling the VP16 transactivation peptide.

First, we designed highly compact regulators by photo-controlling the VP16 (pcVP16) transactivation peptide.
Claim 23designsupports2024Source 1needs review

pcVP16 is a highly compact regulator created by photo-controlling the VP16 transactivation peptide.

First, we designed highly compact regulators by photo-controlling the VP16 (pcVP16) transactivation peptide.
Claim 24designsupports2024Source 1needs review

pcVP16 is a highly compact regulator created by photo-controlling the VP16 transactivation peptide.

First, we designed highly compact regulators by photo-controlling the VP16 (pcVP16) transactivation peptide.
Claim 25designsupports2024Source 1needs review

pcVP16 is a highly compact regulator created by photo-controlling the VP16 transactivation peptide.

First, we designed highly compact regulators by photo-controlling the VP16 (pcVP16) transactivation peptide.
Claim 26designsupports2024Source 1needs review

pcVP16 is a highly compact regulator created by photo-controlling the VP16 transactivation peptide.

First, we designed highly compact regulators by photo-controlling the VP16 (pcVP16) transactivation peptide.
Claim 27designsupports2024Source 1needs review

pcVP16 is a highly compact regulator created by photo-controlling the VP16 transactivation peptide.

First, we designed highly compact regulators by photo-controlling the VP16 (pcVP16) transactivation peptide.
Claim 28designsupports2024Source 1needs review

pcVP16 is a highly compact regulator created by photo-controlling the VP16 transactivation peptide.

First, we designed highly compact regulators by photo-controlling the VP16 (pcVP16) transactivation peptide.
Claim 29significancesupports2024Source 1needs review

LOOMINA and pcVP16 are valuable additions to the optogenetic repertoire for transcriptional regulation.

Functionally and mechanistically, the versatile LOOMINA platform and the exceptionally compact pcVP16 transactivator represent valuable additions to the optogenetic repertoire for transcriptional regulation.
Claim 30significancesupports2024Source 1needs review

LOOMINA and pcVP16 are valuable additions to the optogenetic repertoire for transcriptional regulation.

Functionally and mechanistically, the versatile LOOMINA platform and the exceptionally compact pcVP16 transactivator represent valuable additions to the optogenetic repertoire for transcriptional regulation.
Claim 31significancesupports2024Source 1needs review

LOOMINA and pcVP16 are valuable additions to the optogenetic repertoire for transcriptional regulation.

Functionally and mechanistically, the versatile LOOMINA platform and the exceptionally compact pcVP16 transactivator represent valuable additions to the optogenetic repertoire for transcriptional regulation.
Claim 32significancesupports2024Source 1needs review

LOOMINA and pcVP16 are valuable additions to the optogenetic repertoire for transcriptional regulation.

Functionally and mechanistically, the versatile LOOMINA platform and the exceptionally compact pcVP16 transactivator represent valuable additions to the optogenetic repertoire for transcriptional regulation.
Claim 33significancesupports2024Source 1needs review

LOOMINA and pcVP16 are valuable additions to the optogenetic repertoire for transcriptional regulation.

Functionally and mechanistically, the versatile LOOMINA platform and the exceptionally compact pcVP16 transactivator represent valuable additions to the optogenetic repertoire for transcriptional regulation.
Claim 34significancesupports2024Source 1needs review

LOOMINA and pcVP16 are valuable additions to the optogenetic repertoire for transcriptional regulation.

Functionally and mechanistically, the versatile LOOMINA platform and the exceptionally compact pcVP16 transactivator represent valuable additions to the optogenetic repertoire for transcriptional regulation.
Claim 35significancesupports2024Source 1needs review

LOOMINA and pcVP16 are valuable additions to the optogenetic repertoire for transcriptional regulation.

Functionally and mechanistically, the versatile LOOMINA platform and the exceptionally compact pcVP16 transactivator represent valuable additions to the optogenetic repertoire for transcriptional regulation.

Approval Evidence

1 source3 linked approval claimsfirst-pass slug pcvp16
First, we designed highly compact regulators by photo-controlling the VP16 (pcVP16) transactivation peptide.

Source:

capabilitysupports

The authors created optogenetic systems capable of efficiently terminating transcriptional activation in response to blue light.

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

Source:

designsupports

pcVP16 is a highly compact regulator created by photo-controlling the VP16 transactivation peptide.

First, we designed highly compact regulators by photo-controlling the VP16 (pcVP16) transactivation peptide.

Source:

significancesupports

LOOMINA and pcVP16 are valuable additions to the optogenetic repertoire for transcriptional regulation.

Functionally and mechanistically, the versatile LOOMINA platform and the exceptionally compact pcVP16 transactivator represent valuable additions to the optogenetic repertoire for transcriptional regulation.

Source:

Comparisons

Source-backed strengths

The main supported strength is compactness, as the source explicitly describes pcVP16 as a highly compact regulator. It is also explicitly framed as an optogenetic construct for controlling transcriptional activation with light.

Compared with 4pLRE-cPAOX1

pcVP16 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

pcVP16 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

pcVP16 and photo-controlled VP16 transactivation peptide exposure regulators 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.
    StructuralSource 1Nucleic Acids Research2024Claim 1Claim 2Claim 3

    Extracted from this source document.