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Title: A High‐Throughput Mass Spectrometric Enzyme Activity Assay Enabling the Discovery of Cytochrome P450 Biocatalysts

Abstract

Abstract Assaying for enzymatic activity is a persistent bottleneck in biocatalyst and drug development. Existing high‐throughput assays for enzyme activity tend to be applicable only to a narrow range of biochemical transformations, whereas universal enzyme characterization methods usually require chromatography to determine substrate turnover, greatly diminishing throughput. We present an enzyme activity assay that allows the high‐throughput mass‐spectrometric detection of enzyme activity in complex matrices without the need for a chromatographic step. This technology, which we call probing enzymes with click‐assisted NIMS (PECAN), can detect the activity of medically and biocatalytically significant cytochrome P450s in cell lysate, microsomes, and bacteria. Using this approach, a cytochrome P450 BM3 mutant library was successfully screened for the ability to catalyze the oxidation of the sesquiterpene valencene.

Authors:
ORCiD logo [1];  [2];  [3]; ORCiD logo [2];  [3]; ORCiD logo [4]; ORCiD logo [5]
  1. University of California, Berkeley, CA (United States); Joint BioEnergy Institute (JBEI), Emeryville, CA (United States); University of California, San Diego, CA (United States). Scripps Institute of Oceanography
  2. Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States). Department of Energy Joint Genome Institute (DOE JGI)
  3. Joint BioEnergy Institute (JBEI), Emeryville, CA (United States)
  4. Joint BioEnergy Institute (JBEI), Emeryville, CA (United States); Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States). Department of Energy Joint Genome Institute (DOE JGI)
  5. University of California, Berkeley, CA (United States); Joint BioEnergy Institute (JBEI), Emeryville, CA (United States); Danmarks Tekniske University, Lyngby (Denmark); Shenzhen Institute of Advanced Technology, Shenzen (China)
Publication Date:
Research Org.:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Biological and Environmental Research (BER); National Institutes of Health (NIH); National Science Foundation (NSF)
OSTI Identifier:
1545150
Alternate Identifier(s):
OSTI ID: 1526088
Grant/Contract Number:  
AC02-05CH11231; 1RC1GM090980; F32GM125179; F32GM129960; 1341894; 1442724
Resource Type:
Accepted Manuscript
Journal Name:
Angewandte Chemie (International Edition)
Additional Journal Information:
Journal Name: Angewandte Chemie (International Edition); Journal Volume: 58; Journal Issue: 30; Journal ID: ISSN 1433-7851
Publisher:
Wiley
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; high-throughput screening; mass spectrometry; enzyme assays; biocatalysis; cytochrome P450

Citation Formats

de Rond, Tristan, Gao, Jian, Zargar, Amin, de Raad, Markus, Cunha, Jack, Northen, Trent R., and Keasling, Jay D. A High‐Throughput Mass Spectrometric Enzyme Activity Assay Enabling the Discovery of Cytochrome P450 Biocatalysts. United States: N. p., 2019. Web. doi:10.1002/anie.201901782.
de Rond, Tristan, Gao, Jian, Zargar, Amin, de Raad, Markus, Cunha, Jack, Northen, Trent R., & Keasling, Jay D. A High‐Throughput Mass Spectrometric Enzyme Activity Assay Enabling the Discovery of Cytochrome P450 Biocatalysts. United States. https://doi.org/10.1002/anie.201901782
de Rond, Tristan, Gao, Jian, Zargar, Amin, de Raad, Markus, Cunha, Jack, Northen, Trent R., and Keasling, Jay D. Wed . "A High‐Throughput Mass Spectrometric Enzyme Activity Assay Enabling the Discovery of Cytochrome P450 Biocatalysts". United States. https://doi.org/10.1002/anie.201901782. https://www.osti.gov/servlets/purl/1545150.
@article{osti_1545150,
title = {A High‐Throughput Mass Spectrometric Enzyme Activity Assay Enabling the Discovery of Cytochrome P450 Biocatalysts},
author = {de Rond, Tristan and Gao, Jian and Zargar, Amin and de Raad, Markus and Cunha, Jack and Northen, Trent R. and Keasling, Jay D.},
abstractNote = {Abstract Assaying for enzymatic activity is a persistent bottleneck in biocatalyst and drug development. Existing high‐throughput assays for enzyme activity tend to be applicable only to a narrow range of biochemical transformations, whereas universal enzyme characterization methods usually require chromatography to determine substrate turnover, greatly diminishing throughput. We present an enzyme activity assay that allows the high‐throughput mass‐spectrometric detection of enzyme activity in complex matrices without the need for a chromatographic step. This technology, which we call probing enzymes with click‐assisted NIMS (PECAN), can detect the activity of medically and biocatalytically significant cytochrome P450s in cell lysate, microsomes, and bacteria. Using this approach, a cytochrome P450 BM3 mutant library was successfully screened for the ability to catalyze the oxidation of the sesquiterpene valencene.},
doi = {10.1002/anie.201901782},
journal = {Angewandte Chemie (International Edition)},
number = 30,
volume = 58,
place = {United States},
year = {Wed May 29 00:00:00 EDT 2019},
month = {Wed May 29 00:00:00 EDT 2019}
}

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