Toolkit/pc-PROTAC3

pc-PROTAC3

Construct Pattern·Research·Since 2019

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

Summary

pc-PROTAC3 is a photocaged PROTAC constructed against Bruton's tyrosine kinase (BTK) within a light-inducible protein degradation strategy. The available evidence states that this approach was successfully applied to generate pc-PROTAC3 and that photocaged PROTACs can activate degradation activity upon light exposure.

Usefulness & Problems

Why this is useful

This construct is useful as a light-gated targeted protein degradation reagent, enabling temporal control over PROTAC activity through irradiation. The cited work presents photocaged PROTACs as a general strategy for inducing protein degradation with light, which addresses the need to keep degrader activity inactive until triggered.

Source:

Here we present a type of photo-caged PROTACs (pc-PROTACs) to induce degradation activity with light.

Problem solved

pc-PROTAC3 addresses the problem of uncontrolled constitutive PROTAC activity by using a caged design that is activated by light. In the supplied evidence, the broader platform is positioned as a method to induce protein degradation on demand rather than continuously.

Problem links

Need precise spatiotemporal control with light input

Derived

pc-PROTAC3 is a photocaged PROTAC constructed against Bruton's tyrosine kinase (BTK) within a light-inducible protein degradation strategy. The available evidence states that this approach was successfully applied to generate pc-PROTAC3 and that photocaged PROTACs can activate degradation activity upon light exposure.

Taxonomy & Function

Primary hierarchy

Mechanism Branch

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

Techniques

No technique tags yet.

Target processes

No target processes tagged yet.

Input: Light

Implementation Constraints

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

The construct is implemented as a photocaged PROTAC and therefore requires light as the input modality for activation. The available evidence identifies BTK as the intended target, but it does not specify the caging group, linker architecture, E3 ligase recruiter, irradiation parameters, or delivery conditions for pc-PROTAC3.

The supplied evidence does not provide direct performance data for pc-PROTAC3, such as degradation potency, kinetics, wavelength dependence, selectivity, or cellular context. Conditional live-cell degradation after irradiation is explicitly described for pc-PROTAC1, but independent validation details for pc-PROTAC3 are not included here.

Validation

Cell-freeBacteriaMammalianMouseHumanTherapeuticIndep. Replication

Supporting Sources

Ranked Claims

Claim 1capabilitysupports2019Source 1needs review

Photo-caged PROTACs can induce protein degradation activity with light.

Here we present a type of photo-caged PROTACs (pc-PROTACs) to induce degradation activity with light.
Claim 2capabilitysupports2019Source 1needs review

Photo-caged PROTACs can induce protein degradation activity with light.

Here we present a type of photo-caged PROTACs (pc-PROTACs) to induce degradation activity with light.
Claim 3capabilitysupports2019Source 1needs review

Photo-caged PROTACs can induce protein degradation activity with light.

Here we present a type of photo-caged PROTACs (pc-PROTACs) to induce degradation activity with light.
Claim 4capabilitysupports2019Source 1needs review

Photo-caged PROTACs can induce protein degradation activity with light.

Here we present a type of photo-caged PROTACs (pc-PROTACs) to induce degradation activity with light.
Claim 5capabilitysupports2019Source 1needs review

Photo-caged PROTACs can induce protein degradation activity with light.

Here we present a type of photo-caged PROTACs (pc-PROTACs) to induce degradation activity with light.
Claim 6capabilitysupports2019Source 1needs review

Photo-caged PROTACs can induce protein degradation activity with light.

Here we present a type of photo-caged PROTACs (pc-PROTACs) to induce degradation activity with light.
Claim 7capabilitysupports2019Source 1needs review

Photo-caged PROTACs can induce protein degradation activity with light.

Here we present a type of photo-caged PROTACs (pc-PROTACs) to induce degradation activity with light.
Claim 8conditional activitysupports2019Source 1needs review

pc-PROTAC1 showed potent degradation activity in live cells only after light irradiation.

the resulting molecule pc-PROTAC1 showed potent degradation activity in live cells only after light irradiation
Claim 9conditional activitysupports2019Source 1needs review

pc-PROTAC1 showed potent degradation activity in live cells only after light irradiation.

the resulting molecule pc-PROTAC1 showed potent degradation activity in live cells only after light irradiation
Claim 10conditional activitysupports2019Source 1needs review

pc-PROTAC1 showed potent degradation activity in live cells only after light irradiation.

the resulting molecule pc-PROTAC1 showed potent degradation activity in live cells only after light irradiation
Claim 11conditional activitysupports2019Source 1needs review

pc-PROTAC1 showed potent degradation activity in live cells only after light irradiation.

the resulting molecule pc-PROTAC1 showed potent degradation activity in live cells only after light irradiation
Claim 12conditional activitysupports2019Source 1needs review

pc-PROTAC1 showed potent degradation activity in live cells only after light irradiation.

the resulting molecule pc-PROTAC1 showed potent degradation activity in live cells only after light irradiation
Claim 13conditional activitysupports2019Source 1needs review

pc-PROTAC1 showed potent degradation activity in live cells only after light irradiation.

the resulting molecule pc-PROTAC1 showed potent degradation activity in live cells only after light irradiation
Claim 14conditional activitysupports2019Source 1needs review

pc-PROTAC1 showed potent degradation activity in live cells only after light irradiation.

the resulting molecule pc-PROTAC1 showed potent degradation activity in live cells only after light irradiation
Claim 15generalizabilitysupports2019Source 1needs review

The photocaged PROTAC approach was successfully applied to construct pc-PROTAC3 of BTK.

this approach was successfully applied to construct pc-PROTAC3 of BTK
Claim 16generalizabilitysupports2019Source 1needs review

The photocaged PROTAC approach was successfully applied to construct pc-PROTAC3 of BTK.

this approach was successfully applied to construct pc-PROTAC3 of BTK
Claim 17generalizabilitysupports2019Source 1needs review

The photocaged PROTAC approach was successfully applied to construct pc-PROTAC3 of BTK.

this approach was successfully applied to construct pc-PROTAC3 of BTK
Claim 18generalizabilitysupports2019Source 1needs review

The photocaged PROTAC approach was successfully applied to construct pc-PROTAC3 of BTK.

this approach was successfully applied to construct pc-PROTAC3 of BTK
Claim 19generalizabilitysupports2019Source 1needs review

The photocaged PROTAC approach was successfully applied to construct pc-PROTAC3 of BTK.

this approach was successfully applied to construct pc-PROTAC3 of BTK
Claim 20generalizabilitysupports2019Source 1needs review

The photocaged PROTAC approach was successfully applied to construct pc-PROTAC3 of BTK.

this approach was successfully applied to construct pc-PROTAC3 of BTK
Claim 21generalizabilitysupports2019Source 1needs review

The photocaged PROTAC approach was successfully applied to construct pc-PROTAC3 of BTK.

this approach was successfully applied to construct pc-PROTAC3 of BTK
Claim 22general strategysupports2019Source 1needs review

A general strategy to induce protein degradation with light was established.

Thus, a general strategy to induce protein degradation with light was established
Claim 23general strategysupports2019Source 1needs review

A general strategy to induce protein degradation with light was established.

Thus, a general strategy to induce protein degradation with light was established
Claim 24general strategysupports2019Source 1needs review

A general strategy to induce protein degradation with light was established.

Thus, a general strategy to induce protein degradation with light was established
Claim 25general strategysupports2019Source 1needs review

A general strategy to induce protein degradation with light was established.

Thus, a general strategy to induce protein degradation with light was established
Claim 26general strategysupports2019Source 1needs review

A general strategy to induce protein degradation with light was established.

Thus, a general strategy to induce protein degradation with light was established
Claim 27general strategysupports2019Source 1needs review

A general strategy to induce protein degradation with light was established.

Thus, a general strategy to induce protein degradation with light was established
Claim 28general strategysupports2019Source 1needs review

A general strategy to induce protein degradation with light was established.

Thus, a general strategy to induce protein degradation with light was established
Claim 29targeted degradationsupports2019Source 1needs review

pc-PROTAC1 efficiently degraded Brd4 and induced expected phenotypic changes in zebrafish.

this molecule efficiently degraded Brd4 and induced expected phenotypic changes in zebrafish
Claim 30targeted degradationsupports2019Source 1needs review

pc-PROTAC1 efficiently degraded Brd4 and induced expected phenotypic changes in zebrafish.

this molecule efficiently degraded Brd4 and induced expected phenotypic changes in zebrafish
Claim 31targeted degradationsupports2019Source 1needs review

pc-PROTAC1 efficiently degraded Brd4 and induced expected phenotypic changes in zebrafish.

this molecule efficiently degraded Brd4 and induced expected phenotypic changes in zebrafish
Claim 32targeted degradationsupports2019Source 1needs review

pc-PROTAC1 efficiently degraded Brd4 and induced expected phenotypic changes in zebrafish.

this molecule efficiently degraded Brd4 and induced expected phenotypic changes in zebrafish
Claim 33targeted degradationsupports2019Source 1needs review

pc-PROTAC1 efficiently degraded Brd4 and induced expected phenotypic changes in zebrafish.

this molecule efficiently degraded Brd4 and induced expected phenotypic changes in zebrafish
Claim 34targeted degradationsupports2019Source 1needs review

pc-PROTAC1 efficiently degraded Brd4 and induced expected phenotypic changes in zebrafish.

this molecule efficiently degraded Brd4 and induced expected phenotypic changes in zebrafish
Claim 35targeted degradationsupports2019Source 1needs review

pc-PROTAC1 efficiently degraded Brd4 and induced expected phenotypic changes in zebrafish.

this molecule efficiently degraded Brd4 and induced expected phenotypic changes in zebrafish

Approval Evidence

1 source1 linked approval claimfirst-pass slug pc-protac3
this approach was successfully applied to construct pc-PROTAC3 of BTK

Source:

generalizabilitysupports

The photocaged PROTAC approach was successfully applied to construct pc-PROTAC3 of BTK.

this approach was successfully applied to construct pc-PROTAC3 of BTK

Source:

Comparisons

Source-backed strengths

The main reported strength is conditional activation: the source article states that photo-caged PROTACs can induce protein degradation activity with light. The evidence also indicates that the approach was successfully extended to a BTK-directed construct, pc-PROTAC3, supporting target-specific implementation within the platform.

pc-PROTAC3 and alkynyl-functionalized photocleavable linker address a similar problem space.

Shared frame: same top-level item type; shared mechanisms: photocleavage; same primary input modality: light

Compared with Opto-Casp8-V1

pc-PROTAC3 and Opto-Casp8-V1 address a similar problem space.

Shared frame: same top-level item type; shared mechanisms: photocleavage; same primary input modality: light

Compared with Opto-Casp8-V2

pc-PROTAC3 and Opto-Casp8-V2 address a similar problem space.

Shared frame: same top-level item type; shared mechanisms: photocleavage; same primary input modality: light

Ranked Citations

  1. 1.
    StructuralSource 1Journal of the American Chemical Society2019Claim 1Claim 2Claim 3

    Extracted from this source document.