Toolkit/TR-FRET assay

TR-FRET assay

Assay Method·Research·Since 2024

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

Summary

TR-FRET assay is a time-resolved fluorescence resonance energy transfer binding assay used in the cited study to confirm binding of a small-molecule ligand to CIB1. In this evidence set, it functions as a chemical-input assay for ligand-binding confirmation.

Usefulness & Problems

Why this is useful

The assay is useful for experimentally confirming whether a candidate small molecule binds a target protein after computational or screening-based discovery. Here, it provided binding evidence for a CIB1-directed ligand identified by FRASE-bot.

Source:

We apply FRASE-bot to identify ligands for Calcium and Integrin Binding protein 1 (CIB1)... FRASE-based virtual screening identifies a small-molecule CIB1 ligand

Source:

A neural network model is used to retain fragments with the highest likelihood of being native binders.

Source:

FRASE-bot mines available 3D structures of ligand-protein complexes to create a database of FRAgments in Structural Environments (FRASE).

Source:

The FRASE database can be screened to identify structural environments similar to those in the target protein and seed the target structure with relevant ligand fragments.

Problem solved

It addresses the need to validate that a computationally identified CIB1 ligand shows measurable target engagement in an experimental binding assay. The supplied evidence specifically supports ligand-binding confirmation rather than broader functional or cellular characterization.

Source:

We apply FRASE-bot to identify ligands for Calcium and Integrin Binding protein 1 (CIB1)... FRASE-based virtual screening identifies a small-molecule CIB1 ligand

Problem links

Manual and Laborious Nature of Chemical Synthesis

Gap mapView gap

A TR-FRET assay could help standardize and speed evaluation of synthesis outputs or binding-active products, which may indirectly improve reproducibility in a chemistry workflow. Its relevance is mainly as a scalable readout, not as synthesis automation.

Taxonomy & Function

Primary hierarchy

Technique Branch

Method: A concrete measurement method used to characterize an engineered system.

Target processes

No target processes tagged yet.

Input: Chemical

Implementation Constraints

cofactor dependency: cofactor requirement unknownencoding mode: genetically encodedimplementation constraint: context specific validationoperating role: sensor

The available evidence only states that binding was confirmed in a TR-FRET assay. No construct design, labeling strategy, donor-acceptor pair, buffer conditions, instrumentation, or expression system details are provided in the supplied material.

The supplied evidence does not report assay format details, fluorophores, detection wavelengths, affinity values, dynamic range, throughput, or controls. Validation is limited here to a single reported use case involving CIB1 ligand-binding confirmation.

Validation

Cell-freeBacteriaMammalianMouseHumanTherapeuticIndep. Replication

Supporting Sources

Ranked Claims

Claim 1application resultsupports2024Source 1needs review

Applying FRASE-bot to CIB1 identified a small-molecule CIB1 ligand.

We apply FRASE-bot to identify ligands for Calcium and Integrin Binding protein 1 (CIB1)... FRASE-based virtual screening identifies a small-molecule CIB1 ligand
Claim 2application resultsupports2024Source 1needs review

Applying FRASE-bot to CIB1 identified a small-molecule CIB1 ligand.

We apply FRASE-bot to identify ligands for Calcium and Integrin Binding protein 1 (CIB1)... FRASE-based virtual screening identifies a small-molecule CIB1 ligand
Claim 3application resultsupports2024Source 1needs review

Applying FRASE-bot to CIB1 identified a small-molecule CIB1 ligand.

We apply FRASE-bot to identify ligands for Calcium and Integrin Binding protein 1 (CIB1)... FRASE-based virtual screening identifies a small-molecule CIB1 ligand
Claim 4application resultsupports2024Source 1needs review

Applying FRASE-bot to CIB1 identified a small-molecule CIB1 ligand.

We apply FRASE-bot to identify ligands for Calcium and Integrin Binding protein 1 (CIB1)... FRASE-based virtual screening identifies a small-molecule CIB1 ligand
Claim 5application resultsupports2024Source 1needs review

Applying FRASE-bot to CIB1 identified a small-molecule CIB1 ligand.

We apply FRASE-bot to identify ligands for Calcium and Integrin Binding protein 1 (CIB1)... FRASE-based virtual screening identifies a small-molecule CIB1 ligand
Claim 6application resultsupports2024Source 1needs review

Applying FRASE-bot to CIB1 identified a small-molecule CIB1 ligand.

We apply FRASE-bot to identify ligands for Calcium and Integrin Binding protein 1 (CIB1)... FRASE-based virtual screening identifies a small-molecule CIB1 ligand
Claim 7application resultsupports2024Source 1needs review

Applying FRASE-bot to CIB1 identified a small-molecule CIB1 ligand.

We apply FRASE-bot to identify ligands for Calcium and Integrin Binding protein 1 (CIB1)... FRASE-based virtual screening identifies a small-molecule CIB1 ligand
Claim 8application resultsupports2024Source 1needs review

Applying FRASE-bot to CIB1 identified a small-molecule CIB1 ligand.

We apply FRASE-bot to identify ligands for Calcium and Integrin Binding protein 1 (CIB1)... FRASE-based virtual screening identifies a small-molecule CIB1 ligand
Claim 9application resultsupports2024Source 1needs review

Applying FRASE-bot to CIB1 identified a small-molecule CIB1 ligand.

We apply FRASE-bot to identify ligands for Calcium and Integrin Binding protein 1 (CIB1)... FRASE-based virtual screening identifies a small-molecule CIB1 ligand
Claim 10application resultsupports2024Source 1needs review

Applying FRASE-bot to CIB1 identified a small-molecule CIB1 ligand.

We apply FRASE-bot to identify ligands for Calcium and Integrin Binding protein 1 (CIB1)... FRASE-based virtual screening identifies a small-molecule CIB1 ligand
Claim 11binding evidencesupports2024Source 1needs review

The identified small-molecule CIB1 ligand had binding confirmed in a TR-FRET assay.

a small-molecule CIB1 ligand (with binding confirmed in a TR-FRET assay)
Claim 12binding evidencesupports2024Source 1needs review

The identified small-molecule CIB1 ligand had binding confirmed in a TR-FRET assay.

a small-molecule CIB1 ligand (with binding confirmed in a TR-FRET assay)
Claim 13binding evidencesupports2024Source 1needs review

The identified small-molecule CIB1 ligand had binding confirmed in a TR-FRET assay.

a small-molecule CIB1 ligand (with binding confirmed in a TR-FRET assay)
Claim 14binding evidencesupports2024Source 1needs review

The identified small-molecule CIB1 ligand had binding confirmed in a TR-FRET assay.

a small-molecule CIB1 ligand (with binding confirmed in a TR-FRET assay)
Claim 15binding evidencesupports2024Source 1needs review

The identified small-molecule CIB1 ligand had binding confirmed in a TR-FRET assay.

a small-molecule CIB1 ligand (with binding confirmed in a TR-FRET assay)
Claim 16binding evidencesupports2024Source 1needs review

The identified small-molecule CIB1 ligand had binding confirmed in a TR-FRET assay.

a small-molecule CIB1 ligand (with binding confirmed in a TR-FRET assay)
Claim 17binding evidencesupports2024Source 1needs review

The identified small-molecule CIB1 ligand had binding confirmed in a TR-FRET assay.

a small-molecule CIB1 ligand (with binding confirmed in a TR-FRET assay)
Claim 18binding evidencesupports2024Source 1needs review

The identified small-molecule CIB1 ligand had binding confirmed in a TR-FRET assay.

a small-molecule CIB1 ligand (with binding confirmed in a TR-FRET assay)
Claim 19binding evidencesupports2024Source 1needs review

The identified small-molecule CIB1 ligand had binding confirmed in a TR-FRET assay.

a small-molecule CIB1 ligand (with binding confirmed in a TR-FRET assay)
Claim 20binding evidencesupports2024Source 1needs review

The identified small-molecule CIB1 ligand had binding confirmed in a TR-FRET assay.

a small-molecule CIB1 ligand (with binding confirmed in a TR-FRET assay)
Claim 21binding evidencesupports2024Source 1needs review

The identified small-molecule CIB1 ligand had binding confirmed in a TR-FRET assay.

a small-molecule CIB1 ligand (with binding confirmed in a TR-FRET assay)
Claim 22binding evidencesupports2024Source 1needs review

The identified small-molecule CIB1 ligand had binding confirmed in a TR-FRET assay.

a small-molecule CIB1 ligand (with binding confirmed in a TR-FRET assay)
Claim 23binding evidencesupports2024Source 1needs review

The identified small-molecule CIB1 ligand had binding confirmed in a TR-FRET assay.

a small-molecule CIB1 ligand (with binding confirmed in a TR-FRET assay)
Claim 24binding evidencesupports2024Source 1needs review

The identified small-molecule CIB1 ligand had binding confirmed in a TR-FRET assay.

a small-molecule CIB1 ligand (with binding confirmed in a TR-FRET assay)
Claim 25binding evidencesupports2024Source 1needs review

The identified small-molecule CIB1 ligand had binding confirmed in a TR-FRET assay.

a small-molecule CIB1 ligand (with binding confirmed in a TR-FRET assay)
Claim 26binding evidencesupports2024Source 1needs review

The identified small-molecule CIB1 ligand had binding confirmed in a TR-FRET assay.

a small-molecule CIB1 ligand (with binding confirmed in a TR-FRET assay)
Claim 27binding evidencesupports2024Source 1needs review

The identified small-molecule CIB1 ligand had binding confirmed in a TR-FRET assay.

a small-molecule CIB1 ligand (with binding confirmed in a TR-FRET assay)
Claim 28method capabilitysupports2024Source 1needs review

A neural network model is used to retain seeded fragments with the highest likelihood of being native binders.

A neural network model is used to retain fragments with the highest likelihood of being native binders.
Claim 29method capabilitysupports2024Source 1needs review

A neural network model is used to retain seeded fragments with the highest likelihood of being native binders.

A neural network model is used to retain fragments with the highest likelihood of being native binders.
Claim 30method capabilitysupports2024Source 1needs review

A neural network model is used to retain seeded fragments with the highest likelihood of being native binders.

A neural network model is used to retain fragments with the highest likelihood of being native binders.
Claim 31method capabilitysupports2024Source 1needs review

A neural network model is used to retain seeded fragments with the highest likelihood of being native binders.

A neural network model is used to retain fragments with the highest likelihood of being native binders.
Claim 32method capabilitysupports2024Source 1needs review

A neural network model is used to retain seeded fragments with the highest likelihood of being native binders.

A neural network model is used to retain fragments with the highest likelihood of being native binders.
Claim 33method capabilitysupports2024Source 1needs review

A neural network model is used to retain seeded fragments with the highest likelihood of being native binders.

A neural network model is used to retain fragments with the highest likelihood of being native binders.
Claim 34method capabilitysupports2024Source 1needs review

A neural network model is used to retain seeded fragments with the highest likelihood of being native binders.

A neural network model is used to retain fragments with the highest likelihood of being native binders.
Claim 35method capabilitysupports2024Source 1needs review

A neural network model is used to retain seeded fragments with the highest likelihood of being native binders.

A neural network model is used to retain fragments with the highest likelihood of being native binders.
Claim 36method capabilitysupports2024Source 1needs review

A neural network model is used to retain seeded fragments with the highest likelihood of being native binders.

A neural network model is used to retain fragments with the highest likelihood of being native binders.
Claim 37method capabilitysupports2024Source 1needs review

A neural network model is used to retain seeded fragments with the highest likelihood of being native binders.

A neural network model is used to retain fragments with the highest likelihood of being native binders.
Claim 38method capabilitysupports2024Source 1needs review

FRASE-bot mines 3D structures of ligand-protein complexes to create a database of fragments in structural environments.

FRASE-bot mines available 3D structures of ligand-protein complexes to create a database of FRAgments in Structural Environments (FRASE).
Claim 39method capabilitysupports2024Source 1needs review

FRASE-bot mines 3D structures of ligand-protein complexes to create a database of fragments in structural environments.

FRASE-bot mines available 3D structures of ligand-protein complexes to create a database of FRAgments in Structural Environments (FRASE).
Claim 40method capabilitysupports2024Source 1needs review

FRASE-bot mines 3D structures of ligand-protein complexes to create a database of fragments in structural environments.

FRASE-bot mines available 3D structures of ligand-protein complexes to create a database of FRAgments in Structural Environments (FRASE).
Claim 41method capabilitysupports2024Source 1needs review

FRASE-bot mines 3D structures of ligand-protein complexes to create a database of fragments in structural environments.

FRASE-bot mines available 3D structures of ligand-protein complexes to create a database of FRAgments in Structural Environments (FRASE).
Claim 42method capabilitysupports2024Source 1needs review

FRASE-bot mines 3D structures of ligand-protein complexes to create a database of fragments in structural environments.

FRASE-bot mines available 3D structures of ligand-protein complexes to create a database of FRAgments in Structural Environments (FRASE).
Claim 43method capabilitysupports2024Source 1needs review

FRASE-bot mines 3D structures of ligand-protein complexes to create a database of fragments in structural environments.

FRASE-bot mines available 3D structures of ligand-protein complexes to create a database of FRAgments in Structural Environments (FRASE).
Claim 44method capabilitysupports2024Source 1needs review

FRASE-bot mines 3D structures of ligand-protein complexes to create a database of fragments in structural environments.

FRASE-bot mines available 3D structures of ligand-protein complexes to create a database of FRAgments in Structural Environments (FRASE).
Claim 45method capabilitysupports2024Source 1needs review

FRASE-bot mines 3D structures of ligand-protein complexes to create a database of fragments in structural environments.

FRASE-bot mines available 3D structures of ligand-protein complexes to create a database of FRAgments in Structural Environments (FRASE).
Claim 46method capabilitysupports2024Source 1needs review

FRASE-bot mines 3D structures of ligand-protein complexes to create a database of fragments in structural environments.

FRASE-bot mines available 3D structures of ligand-protein complexes to create a database of FRAgments in Structural Environments (FRASE).
Claim 47method capabilitysupports2024Source 1needs review

FRASE-bot mines 3D structures of ligand-protein complexes to create a database of fragments in structural environments.

FRASE-bot mines available 3D structures of ligand-protein complexes to create a database of FRAgments in Structural Environments (FRASE).
Claim 48method capabilitysupports2024Source 1needs review

The FRASE database can be screened to identify structural environments similar to those in a target protein and seed the target structure with relevant ligand fragments.

The FRASE database can be screened to identify structural environments similar to those in the target protein and seed the target structure with relevant ligand fragments.
Claim 49method capabilitysupports2024Source 1needs review

The FRASE database can be screened to identify structural environments similar to those in a target protein and seed the target structure with relevant ligand fragments.

The FRASE database can be screened to identify structural environments similar to those in the target protein and seed the target structure with relevant ligand fragments.
Claim 50method capabilitysupports2024Source 1needs review

The FRASE database can be screened to identify structural environments similar to those in a target protein and seed the target structure with relevant ligand fragments.

The FRASE database can be screened to identify structural environments similar to those in the target protein and seed the target structure with relevant ligand fragments.
Claim 51method capabilitysupports2024Source 1needs review

The FRASE database can be screened to identify structural environments similar to those in a target protein and seed the target structure with relevant ligand fragments.

The FRASE database can be screened to identify structural environments similar to those in the target protein and seed the target structure with relevant ligand fragments.
Claim 52method capabilitysupports2024Source 1needs review

The FRASE database can be screened to identify structural environments similar to those in a target protein and seed the target structure with relevant ligand fragments.

The FRASE database can be screened to identify structural environments similar to those in the target protein and seed the target structure with relevant ligand fragments.
Claim 53method capabilitysupports2024Source 1needs review

The FRASE database can be screened to identify structural environments similar to those in a target protein and seed the target structure with relevant ligand fragments.

The FRASE database can be screened to identify structural environments similar to those in the target protein and seed the target structure with relevant ligand fragments.
Claim 54method capabilitysupports2024Source 1needs review

The FRASE database can be screened to identify structural environments similar to those in a target protein and seed the target structure with relevant ligand fragments.

The FRASE database can be screened to identify structural environments similar to those in the target protein and seed the target structure with relevant ligand fragments.
Claim 55method capabilitysupports2024Source 1needs review

The FRASE database can be screened to identify structural environments similar to those in a target protein and seed the target structure with relevant ligand fragments.

The FRASE database can be screened to identify structural environments similar to those in the target protein and seed the target structure with relevant ligand fragments.
Claim 56method capabilitysupports2024Source 1needs review

The FRASE database can be screened to identify structural environments similar to those in a target protein and seed the target structure with relevant ligand fragments.

The FRASE database can be screened to identify structural environments similar to those in the target protein and seed the target structure with relevant ligand fragments.
Claim 57method capabilitysupports2024Source 1needs review

The FRASE database can be screened to identify structural environments similar to those in a target protein and seed the target structure with relevant ligand fragments.

The FRASE database can be screened to identify structural environments similar to those in the target protein and seed the target structure with relevant ligand fragments.
Claim 58method introductionsupports2024Source 1needs review

FRASE-bot is introduced as a hit-finding method intended to expedite drug discovery for unconventional therapeutic targets.

We introduce FRASE-based hit-finding robot (FRASE-bot), to expedite drug discovery for unconventional therapeutic targets.
Claim 59method introductionsupports2024Source 1needs review

FRASE-bot is introduced as a hit-finding method intended to expedite drug discovery for unconventional therapeutic targets.

We introduce FRASE-based hit-finding robot (FRASE-bot), to expedite drug discovery for unconventional therapeutic targets.
Claim 60method introductionsupports2024Source 1needs review

FRASE-bot is introduced as a hit-finding method intended to expedite drug discovery for unconventional therapeutic targets.

We introduce FRASE-based hit-finding robot (FRASE-bot), to expedite drug discovery for unconventional therapeutic targets.
Claim 61method introductionsupports2024Source 1needs review

FRASE-bot is introduced as a hit-finding method intended to expedite drug discovery for unconventional therapeutic targets.

We introduce FRASE-based hit-finding robot (FRASE-bot), to expedite drug discovery for unconventional therapeutic targets.
Claim 62method introductionsupports2024Source 1needs review

FRASE-bot is introduced as a hit-finding method intended to expedite drug discovery for unconventional therapeutic targets.

We introduce FRASE-based hit-finding robot (FRASE-bot), to expedite drug discovery for unconventional therapeutic targets.
Claim 63method introductionsupports2024Source 1needs review

FRASE-bot is introduced as a hit-finding method intended to expedite drug discovery for unconventional therapeutic targets.

We introduce FRASE-based hit-finding robot (FRASE-bot), to expedite drug discovery for unconventional therapeutic targets.
Claim 64method introductionsupports2024Source 1needs review

FRASE-bot is introduced as a hit-finding method intended to expedite drug discovery for unconventional therapeutic targets.

We introduce FRASE-based hit-finding robot (FRASE-bot), to expedite drug discovery for unconventional therapeutic targets.
Claim 65method introductionsupports2024Source 1needs review

FRASE-bot is introduced as a hit-finding method intended to expedite drug discovery for unconventional therapeutic targets.

We introduce FRASE-based hit-finding robot (FRASE-bot), to expedite drug discovery for unconventional therapeutic targets.
Claim 66method introductionsupports2024Source 1needs review

FRASE-bot is introduced as a hit-finding method intended to expedite drug discovery for unconventional therapeutic targets.

We introduce FRASE-based hit-finding robot (FRASE-bot), to expedite drug discovery for unconventional therapeutic targets.
Claim 67method introductionsupports2024Source 1needs review

FRASE-bot is introduced as a hit-finding method intended to expedite drug discovery for unconventional therapeutic targets.

We introduce FRASE-based hit-finding robot (FRASE-bot), to expedite drug discovery for unconventional therapeutic targets.

Approval Evidence

1 source1 linked approval claimfirst-pass slug tr-fret-assay
binding confirmed in a TR-FRET assay

Source:

binding evidencesupports

The identified small-molecule CIB1 ligand had binding confirmed in a TR-FRET assay.

a small-molecule CIB1 ligand (with binding confirmed in a TR-FRET assay)

Source:

Comparisons

Source-backed strengths

The cited study reports that binding of the identified small-molecule ligand to CIB1 was confirmed in a TR-FRET assay. The evidence supports TR-FRET as an orthogonal experimental readout following in silico ligand discovery, but does not provide quantitative performance metrics in the supplied text.

Compared with bacterial degrons

TR-FRET assay and bacterial degrons address a similar problem space.

Shared frame: same primary input modality: chemical

TR-FRET assay and fluorescence resonance energy transfer-fluorescence lifetime imaging microscopy address a similar problem space.

Shared frame: same top-level item type; shared mechanisms: fluorescence resonance energy transfer

TR-FRET assay and multicomponent, ligand-functionalized microarrays address a similar problem space.

Shared frame: same top-level item type; same primary input modality: chemical

Ranked Citations

  1. 1.
    StructuralSource 1Nature Communications2024Claim 10Claim 9Claim 10

    Extracted from this source document.