# Nanobody-drug conjugates for targeting specific GPCR pairs

**Authors:** Xianglin Huang, Bryan L. Roth

PMC · DOI: 10.1371/journal.pbio.3003483 · PLOS Biology · 2025-11-21

## TL;DR

This paper introduces nanobody-drug conjugates that can precisely control GPCR signaling by targeting two receptor sites.

## Contribution

The study introduces novel nanobody-small molecule conjugates with logic-gated activity for improved GPCR signaling.

## Key findings

- Nanobody-drug conjugates were created using click chemistry.
- These conjugates showed logic-gated activity at co-expressed receptor pairs.
- They improved signaling profiles compared to traditional ligands.

## Abstract

Bitopic ligands that engage two distinct binding sites offer exciting opportunities for finely tuned control of G protein-coupled receptor signaling. A recent study in PLOS Biology employed click chemistry to generate novel nanobody-small molecule conjugates and demonstrated their logic-gated activity at co-expressed receptor pairs with improved signaling profiles.

Bitopic ligands that engage two distinct binding sites offer exciting opportunities for finely tuned control of G protein-coupled receptor signaling. This Primer explores a recent study in PLOS Biology that reports novel nanobody-small molecule conjugates and demonstrates their logic-gated activity at co-expressed receptor pairs with improved signaling profiles.

## Linked entities

- **Proteins:** FZD4 (frizzled class receptor 4)

## Full-text entities

- **Genes:** CXCR6 (C-X-C motif chemokine receptor 6) [NCBI Gene 10663] {aka BONZO, CD186, CDw186, STRL33, TYMSTR}, VN1R17P (vomeronasal 1 receptor 17 pseudogene) [NCBI Gene 441931] {aka GPCR}

## Full text

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## Figures

1 figure with captions in the complete paper: https://tomesphere.com/paper/PMC12637886/full.md

## References

11 references — full list in the complete paper: https://tomesphere.com/paper/PMC12637886/full.md

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Source: https://tomesphere.com/paper/PMC12637886