Toolkit/opto-PROTAC

opto-PROTAC

Construct Pattern·Research·Since 2020

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

Summary

opto-PROTAC is a light-inducible PROTAC design in which a photolabile caging group is installed on pomalidomide-based degraders to block activity in the dark and permit target protein degradation after ultraviolet A irradiation. It was demonstrated using caged pomalidomide and the PROTACs dBET1 and dALK to achieve spatiotemporal control of protein destruction.

Usefulness & Problems

Why this is useful

This design provides optical control over targeted protein degradation, allowing degradation to be restricted to defined times and illuminated regions. It is useful when constitutive PROTAC activity in the dark would reduce experimental precision or prevent localized perturbation.

Source:

to enable the degradation of protein targets in a spatiotemporal manner

Problem solved

opto-PROTAC addresses the problem of poor temporal and spatial control in conventional PROTAC-mediated protein degradation. By suppressing degrader activity until ultraviolet A exposure, it enables inducible and spatially restricted target destruction.

Problem links

Need conditional protein clearance

Derived

opto-PROTAC is a light-inducible PROTAC design in which a photolabile caging group is installed on pomalidomide-based degraders to block activity in the dark and permit target protein degradation after ultraviolet A irradiation. It was demonstrated using caged pomalidomide and the PROTACs dBET1 and dALK to achieve spatiotemporal control of protein destruction.

Need precise spatiotemporal control with light input

Derived

opto-PROTAC is a light-inducible PROTAC design in which a photolabile caging group is installed on pomalidomide-based degraders to block activity in the dark and permit target protein degradation after ultraviolet A irradiation. It was demonstrated using caged pomalidomide and the PROTACs dBET1 and dALK to achieve spatiotemporal control of protein destruction.

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

degradation

Input: Light

Implementation Constraints

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

The design strategy involves installation of a photolabile caging group on pomalidomide and on pomalidomide-based PROTACs such as dBET1 and dALK. Activation requires ultraviolet A irradiation, and the caged compounds are reported to remain inactive in the dark until light exposure removes the block on degradation activity.

The available evidence is limited to a single source report and does not establish independent replication. The summary evidence specifies ultraviolet A as the activating input, but does not provide detailed information here on photochemical efficiency, depth of tissue applicability, or performance across diverse targets and biological systems.

Validation

Cell-freeBacteriaMammalianMouseHumanTherapeuticIndep. Replication

Supporting Sources

Ranked Claims

Claim 1activity state controlsupports2020Source 1needs review

These opto-PROTACs have no activity in the dark and can induce restricted degradation upon ultraviolet A irradiation.

These opto-PROTACs display no activities in the dark, while the restricted degradation can be induced at a specific time and rate by ultraviolet A irradiation.
activity state in dark no activities
Claim 2activity state controlsupports2020Source 1needs review

These opto-PROTACs have no activity in the dark and can induce restricted degradation upon ultraviolet A irradiation.

These opto-PROTACs display no activities in the dark, while the restricted degradation can be induced at a specific time and rate by ultraviolet A irradiation.
activity state in dark no activities
Claim 3activity state controlsupports2020Source 1needs review

These opto-PROTACs have no activity in the dark and can induce restricted degradation upon ultraviolet A irradiation.

These opto-PROTACs display no activities in the dark, while the restricted degradation can be induced at a specific time and rate by ultraviolet A irradiation.
activity state in dark no activities
Claim 4activity state controlsupports2020Source 1needs review

These opto-PROTACs have no activity in the dark and can induce restricted degradation upon ultraviolet A irradiation.

These opto-PROTACs display no activities in the dark, while the restricted degradation can be induced at a specific time and rate by ultraviolet A irradiation.
activity state in dark no activities
Claim 5activity state controlsupports2020Source 1needs review

These opto-PROTACs have no activity in the dark and can induce restricted degradation upon ultraviolet A irradiation.

These opto-PROTACs display no activities in the dark, while the restricted degradation can be induced at a specific time and rate by ultraviolet A irradiation.
activity state in dark no activities
Claim 6activity state controlsupports2020Source 1needs review

These opto-PROTACs have no activity in the dark and can induce restricted degradation upon ultraviolet A irradiation.

These opto-PROTACs display no activities in the dark, while the restricted degradation can be induced at a specific time and rate by ultraviolet A irradiation.
activity state in dark no activities
Claim 7activity state controlsupports2020Source 1needs review

These opto-PROTACs have no activity in the dark and can induce restricted degradation upon ultraviolet A irradiation.

These opto-PROTACs display no activities in the dark, while the restricted degradation can be induced at a specific time and rate by ultraviolet A irradiation.
activity state in dark no activities
Claim 8design strategysupports2020Source 1needs review

Light-inducible protein degradation was demonstrated by adding a photolabile caging group on pomalidomide and on the PROTACs dBET1 and dALK.

By adding a photolabile caging group on pomalidomide as a parental compound and two additional PROTACs, dBET1 and dALK, we demonstrated light-inducible protein degradation.
Claim 9design strategysupports2020Source 1needs review

Light-inducible protein degradation was demonstrated by adding a photolabile caging group on pomalidomide and on the PROTACs dBET1 and dALK.

By adding a photolabile caging group on pomalidomide as a parental compound and two additional PROTACs, dBET1 and dALK, we demonstrated light-inducible protein degradation.
Claim 10design strategysupports2020Source 1needs review

Light-inducible protein degradation was demonstrated by adding a photolabile caging group on pomalidomide and on the PROTACs dBET1 and dALK.

By adding a photolabile caging group on pomalidomide as a parental compound and two additional PROTACs, dBET1 and dALK, we demonstrated light-inducible protein degradation.
Claim 11design strategysupports2020Source 1needs review

Light-inducible protein degradation was demonstrated by adding a photolabile caging group on pomalidomide and on the PROTACs dBET1 and dALK.

By adding a photolabile caging group on pomalidomide as a parental compound and two additional PROTACs, dBET1 and dALK, we demonstrated light-inducible protein degradation.
Claim 12design strategysupports2020Source 1needs review

Light-inducible protein degradation was demonstrated by adding a photolabile caging group on pomalidomide and on the PROTACs dBET1 and dALK.

By adding a photolabile caging group on pomalidomide as a parental compound and two additional PROTACs, dBET1 and dALK, we demonstrated light-inducible protein degradation.
Claim 13design strategysupports2020Source 1needs review

Light-inducible protein degradation was demonstrated by adding a photolabile caging group on pomalidomide and on the PROTACs dBET1 and dALK.

By adding a photolabile caging group on pomalidomide as a parental compound and two additional PROTACs, dBET1 and dALK, we demonstrated light-inducible protein degradation.
Claim 14design strategysupports2020Source 1needs review

Light-inducible protein degradation was demonstrated by adding a photolabile caging group on pomalidomide and on the PROTACs dBET1 and dALK.

By adding a photolabile caging group on pomalidomide as a parental compound and two additional PROTACs, dBET1 and dALK, we demonstrated light-inducible protein degradation.
Claim 15functional capabilitysupports2020Source 1needs review

Opto-PROTAC enables degradation of protein targets in a spatiotemporal manner.

to enable the degradation of protein targets in a spatiotemporal manner
Claim 16functional capabilitysupports2020Source 1needs review

Opto-PROTAC enables degradation of protein targets in a spatiotemporal manner.

to enable the degradation of protein targets in a spatiotemporal manner
Claim 17functional capabilitysupports2020Source 1needs review

Opto-PROTAC enables degradation of protein targets in a spatiotemporal manner.

to enable the degradation of protein targets in a spatiotemporal manner
Claim 18functional capabilitysupports2020Source 1needs review

Opto-PROTAC enables degradation of protein targets in a spatiotemporal manner.

to enable the degradation of protein targets in a spatiotemporal manner
Claim 19functional capabilitysupports2020Source 1needs review

Opto-PROTAC enables degradation of protein targets in a spatiotemporal manner.

to enable the degradation of protein targets in a spatiotemporal manner
Claim 20functional capabilitysupports2020Source 1needs review

Opto-PROTAC enables degradation of protein targets in a spatiotemporal manner.

to enable the degradation of protein targets in a spatiotemporal manner
Claim 21functional capabilitysupports2020Source 1needs review

Opto-PROTAC enables degradation of protein targets in a spatiotemporal manner.

to enable the degradation of protein targets in a spatiotemporal manner
Claim 22generalizabilitysupports2020Source 1needs review

The approach is presented as a generalizable platform for development of light-controlled PROTACs.

Our approach provides a generalizable platform for the development of light-controlled PROTACs
Claim 23generalizabilitysupports2020Source 1needs review

The approach is presented as a generalizable platform for development of light-controlled PROTACs.

Our approach provides a generalizable platform for the development of light-controlled PROTACs
Claim 24generalizabilitysupports2020Source 1needs review

The approach is presented as a generalizable platform for development of light-controlled PROTACs.

Our approach provides a generalizable platform for the development of light-controlled PROTACs
Claim 25generalizabilitysupports2020Source 1needs review

The approach is presented as a generalizable platform for development of light-controlled PROTACs.

Our approach provides a generalizable platform for the development of light-controlled PROTACs
Claim 26generalizabilitysupports2020Source 1needs review

The approach is presented as a generalizable platform for development of light-controlled PROTACs.

Our approach provides a generalizable platform for the development of light-controlled PROTACs
Claim 27generalizabilitysupports2020Source 1needs review

The approach is presented as a generalizable platform for development of light-controlled PROTACs.

Our approach provides a generalizable platform for the development of light-controlled PROTACs
Claim 28generalizabilitysupports2020Source 1needs review

The approach is presented as a generalizable platform for development of light-controlled PROTACs.

Our approach provides a generalizable platform for the development of light-controlled PROTACs
Claim 29introduction of toolsupports2020Source 1needs review

The authors introduce a light-inducible switch on PROTACs termed opto-PROTAC.

Here, we introduce a light-inducible switch on PROTACs, thereafter termed as opto-PROTAC
Claim 30introduction of toolsupports2020Source 1needs review

The authors introduce a light-inducible switch on PROTACs termed opto-PROTAC.

Here, we introduce a light-inducible switch on PROTACs, thereafter termed as opto-PROTAC
Claim 31introduction of toolsupports2020Source 1needs review

The authors introduce a light-inducible switch on PROTACs termed opto-PROTAC.

Here, we introduce a light-inducible switch on PROTACs, thereafter termed as opto-PROTAC
Claim 32introduction of toolsupports2020Source 1needs review

The authors introduce a light-inducible switch on PROTACs termed opto-PROTAC.

Here, we introduce a light-inducible switch on PROTACs, thereafter termed as opto-PROTAC
Claim 33introduction of toolsupports2020Source 1needs review

The authors introduce a light-inducible switch on PROTACs termed opto-PROTAC.

Here, we introduce a light-inducible switch on PROTACs, thereafter termed as opto-PROTAC
Claim 34introduction of toolsupports2020Source 1needs review

The authors introduce a light-inducible switch on PROTACs termed opto-PROTAC.

Here, we introduce a light-inducible switch on PROTACs, thereafter termed as opto-PROTAC
Claim 35introduction of toolsupports2020Source 1needs review

The authors introduce a light-inducible switch on PROTACs termed opto-PROTAC.

Here, we introduce a light-inducible switch on PROTACs, thereafter termed as opto-PROTAC

Approval Evidence

1 source5 linked approval claimsfirst-pass slug opto-protac
Here, we introduce a light-inducible switch on PROTACs, thereafter termed as opto-PROTAC

Source:

activity state controlsupports

These opto-PROTACs have no activity in the dark and can induce restricted degradation upon ultraviolet A irradiation.

These opto-PROTACs display no activities in the dark, while the restricted degradation can be induced at a specific time and rate by ultraviolet A irradiation.

Source:

design strategysupports

Light-inducible protein degradation was demonstrated by adding a photolabile caging group on pomalidomide and on the PROTACs dBET1 and dALK.

By adding a photolabile caging group on pomalidomide as a parental compound and two additional PROTACs, dBET1 and dALK, we demonstrated light-inducible protein degradation.

Source:

functional capabilitysupports

Opto-PROTAC enables degradation of protein targets in a spatiotemporal manner.

to enable the degradation of protein targets in a spatiotemporal manner

Source:

generalizabilitysupports

The approach is presented as a generalizable platform for development of light-controlled PROTACs.

Our approach provides a generalizable platform for the development of light-controlled PROTACs

Source:

introduction of toolsupports

The authors introduce a light-inducible switch on PROTACs termed opto-PROTAC.

Here, we introduce a light-inducible switch on PROTACs, thereafter termed as opto-PROTAC

Source:

Comparisons

Source-backed strengths

The reported opto-PROTACs showed no activity in the dark and induced restricted degradation upon ultraviolet A irradiation. The approach was demonstrated across multiple pomalidomide-based molecules, including caged pomalidomide, dBET1, and dALK, supporting its use as a general light-inducible switch on this degrader class.

Compared with GFP-CRY2

opto-PROTAC and GFP-CRY2 address a similar problem space because they share degradation.

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

Compared with lyso-ArchT

opto-PROTAC and lyso-ArchT address a similar problem space because they share degradation.

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

Compared with lyso-ChR2

opto-PROTAC and lyso-ChR2 address a similar problem space because they share degradation.

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

Ranked Citations

  1. 1.
    StructuralSource 1Science Advances2020Claim 1Claim 2Claim 3

    Extracted from this source document.