A novel enzymatic assay for the identification of 4-hydroxyphenylpyruvate dioxygenase modulators

Summary: 4-hydroxyphenylpyruvate dioxygenase (HPPD) is a key enzyme involved in the pathogenesis of tyrosinemia III and cancer. Herein, we describe a spectroscopy-based assay to detect HPPD dioxygenase activity in the presence or absence of small-molecule modulators. We describe steps for transforma...

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Main Authors: Andrew Parkins, Georgios Pantouris
Format: Article
Language:English
Published: Elsevier 2023-06-01
Series:STAR Protocols
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2666166723002678
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author Andrew Parkins
Georgios Pantouris
author_facet Andrew Parkins
Georgios Pantouris
author_sort Andrew Parkins
collection DOAJ
description Summary: 4-hydroxyphenylpyruvate dioxygenase (HPPD) is a key enzyme involved in the pathogenesis of tyrosinemia III and cancer. Herein, we describe a spectroscopy-based assay to detect HPPD dioxygenase activity in the presence or absence of small-molecule modulators. We describe steps for transformation, expression, and purification of HPPD and preparation of the assay plate. We detail initiation and completion of the enzymatic reaction followed by detection of remaining substrate in the form of enol-HPP/borate complex. This assay is applicable for high-throughput screening.For complete details on the use and execution of this protocol, please refer to Parkins et al.1 : Publisher’s note: Undertaking any experimental protocol requires adherence to local institutional guidelines for laboratory safety and ethics.
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spelling doaj.art-7cc469add567430aafea553d5b8afba52023-05-11T04:24:42ZengElsevierSTAR Protocols2666-16672023-06-0142102300A novel enzymatic assay for the identification of 4-hydroxyphenylpyruvate dioxygenase modulatorsAndrew Parkins0Georgios Pantouris1University of the Pacific, Stockton, CA 95211, USAUniversity of the Pacific, Stockton, CA 95211, USA; Corresponding authorSummary: 4-hydroxyphenylpyruvate dioxygenase (HPPD) is a key enzyme involved in the pathogenesis of tyrosinemia III and cancer. Herein, we describe a spectroscopy-based assay to detect HPPD dioxygenase activity in the presence or absence of small-molecule modulators. We describe steps for transformation, expression, and purification of HPPD and preparation of the assay plate. We detail initiation and completion of the enzymatic reaction followed by detection of remaining substrate in the form of enol-HPP/borate complex. This assay is applicable for high-throughput screening.For complete details on the use and execution of this protocol, please refer to Parkins et al.1 : Publisher’s note: Undertaking any experimental protocol requires adherence to local institutional guidelines for laboratory safety and ethics.http://www.sciencedirect.com/science/article/pii/S2666166723002678CancerHealth SciencesHigh throughput screeningProtein expression and purification
spellingShingle Andrew Parkins
Georgios Pantouris
A novel enzymatic assay for the identification of 4-hydroxyphenylpyruvate dioxygenase modulators
STAR Protocols
Cancer
Health Sciences
High throughput screening
Protein expression and purification
title A novel enzymatic assay for the identification of 4-hydroxyphenylpyruvate dioxygenase modulators
title_full A novel enzymatic assay for the identification of 4-hydroxyphenylpyruvate dioxygenase modulators
title_fullStr A novel enzymatic assay for the identification of 4-hydroxyphenylpyruvate dioxygenase modulators
title_full_unstemmed A novel enzymatic assay for the identification of 4-hydroxyphenylpyruvate dioxygenase modulators
title_short A novel enzymatic assay for the identification of 4-hydroxyphenylpyruvate dioxygenase modulators
title_sort novel enzymatic assay for the identification of 4 hydroxyphenylpyruvate dioxygenase modulators
topic Cancer
Health Sciences
High throughput screening
Protein expression and purification
url http://www.sciencedirect.com/science/article/pii/S2666166723002678
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