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Computational design of dynamic biosensors for emerging synthetic opioids
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Journal Article
Computational design of dynamic biosensors for emerging synthetic opioids
2026
Overview
Nitazenes are an emergent class of synthetic opioids that often rival or exceed fentanyl in their potency. These compounds have been detected internationally in illicit drugs and are the cause of increasing numbers of hospitalizations and overdoses. New analogs are consistently released, making detection challenging — new ways of testing a wide range of nitazenes and their metabolic products are urgently needed. Here, we develop a computational protocol to redesign the plant abscisic acid receptor PYR1 to bind diverse nitazenes and maintain its dynamic transduction mechanism. The best design has a low nanomolar limit of detection in vitro against nitazene and menitazene. Deep mutational scanning yielded sensors able to recognize a range of clinically relevant nitazenes and the common metabolic byproduct in a complex biological matrix with limited cross-specificity against unrelated opioids. Application of protein design tools on privileged receptors like PYR1 may yield general sensors for a wide range of applications in vitro and in vivo.
Nitazenes are potent synthetic opioids that are difficult to detect. Here, authors computationally redesign a plant receptor to create sensitive sensors capable of detecting diverse nitazenes and their metabolites in biological samples.
Publisher
Nature Publishing Group UK,Nature Publishing Group,Nature Portfolio
Subject
/ 631/61
/ 82/111
/ 82/47
/ 96/10
/ 96/31
/ Analgesics, Opioid - analysis
/ Analgesics, Opioid - chemistry
/ Arabidopsis Proteins - chemistry
/ Arabidopsis Proteins - genetics
/ Arabidopsis Proteins - metabolism
/ Biosensing Techniques - methods
/ Design
/ Fentanyl
/ Humanities and Social Sciences
/ Hydrogen
/ Ligands
/ Mutation
/ Proteins
/ Redesign
/ Science
/ Sensors
