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Rabbit Antidiethoxyphosphotyrosine Antibody, Made by Single B Cell Cloning, Detects Chlorpyrifos Oxon-Modified Proteins in Cultured Cells and Immunopurifies Modified Peptides for Mass Spectrometry
[Image: see text] Chronic low-dose exposure to organophosphorus pesticides is associated with the risk of neurodegenerative disease. The mechanism of neurotoxicity is independent of acetylcholinesterase inhibition. Adducts on tyrosine, lysine, threonine, and serine can occur after exposure to organo...
Autores principales: | , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
American Chemical Society
2021
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8491160/ https://www.ncbi.nlm.nih.gov/pubmed/34469172 http://dx.doi.org/10.1021/acs.jproteome.1c00383 |
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author | Onder, Seda van Grol, Marco Fidder, Alex Xiao, Gaoping Noort, Daan Yerramalla, Udaya Tacal, Ozden Schopfer, Lawrence M. Lockridge, Oksana |
author_facet | Onder, Seda van Grol, Marco Fidder, Alex Xiao, Gaoping Noort, Daan Yerramalla, Udaya Tacal, Ozden Schopfer, Lawrence M. Lockridge, Oksana |
author_sort | Onder, Seda |
collection | PubMed |
description | [Image: see text] Chronic low-dose exposure to organophosphorus pesticides is associated with the risk of neurodegenerative disease. The mechanism of neurotoxicity is independent of acetylcholinesterase inhibition. Adducts on tyrosine, lysine, threonine, and serine can occur after exposure to organophosphorus pesticides, the most stable being adducts on tyrosine. Rabbit monoclonal 1C6 to diethoxyphosphate-modified tyrosine (depY) was created by single B cell cloning. The amino acid sequence and binding constant (K(d) 3.2 × 10(–8) M) were determined. Cultured human neuroblastoma SH-SY5Y and mouse neuroblastoma N2a cells incubated with a subcytotoxic dose of 10 μM chlorpyrifos oxon contained depY-modified proteins detected by monoclonal 1C6 on Western blots. depY-labeled peptides from tryptic digests of cell lysates were immunopurified by binding to immobilized 1C6. Peptides released with 50% acetonitrile and 1% formic acid were analyzed by liquid chromatography tandem mass spectrometry (LC-MS/MS) on an Orbitrap Fusion Lumos mass spectrometer. Protein Prospector database searches identified 51 peptides modified on tyrosine by diethoxyphosphate in SH-SY5Y cell lysate and 73 diethoxyphosphate-modified peptides in N2a cell lysate. Adducts appeared most frequently on the cytoskeleton proteins tubulin, actin, and vimentin. It was concluded that rabbit monoclonal 1C6 can be useful for studies that aim to understand the mechanism of neurotoxicity resulting from low-dose exposure to organophosphorus pesticides. |
format | Online Article Text |
id | pubmed-8491160 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | American Chemical Society |
record_format | MEDLINE/PubMed |
spelling | pubmed-84911602021-10-05 Rabbit Antidiethoxyphosphotyrosine Antibody, Made by Single B Cell Cloning, Detects Chlorpyrifos Oxon-Modified Proteins in Cultured Cells and Immunopurifies Modified Peptides for Mass Spectrometry Onder, Seda van Grol, Marco Fidder, Alex Xiao, Gaoping Noort, Daan Yerramalla, Udaya Tacal, Ozden Schopfer, Lawrence M. Lockridge, Oksana J Proteome Res [Image: see text] Chronic low-dose exposure to organophosphorus pesticides is associated with the risk of neurodegenerative disease. The mechanism of neurotoxicity is independent of acetylcholinesterase inhibition. Adducts on tyrosine, lysine, threonine, and serine can occur after exposure to organophosphorus pesticides, the most stable being adducts on tyrosine. Rabbit monoclonal 1C6 to diethoxyphosphate-modified tyrosine (depY) was created by single B cell cloning. The amino acid sequence and binding constant (K(d) 3.2 × 10(–8) M) were determined. Cultured human neuroblastoma SH-SY5Y and mouse neuroblastoma N2a cells incubated with a subcytotoxic dose of 10 μM chlorpyrifos oxon contained depY-modified proteins detected by monoclonal 1C6 on Western blots. depY-labeled peptides from tryptic digests of cell lysates were immunopurified by binding to immobilized 1C6. Peptides released with 50% acetonitrile and 1% formic acid were analyzed by liquid chromatography tandem mass spectrometry (LC-MS/MS) on an Orbitrap Fusion Lumos mass spectrometer. Protein Prospector database searches identified 51 peptides modified on tyrosine by diethoxyphosphate in SH-SY5Y cell lysate and 73 diethoxyphosphate-modified peptides in N2a cell lysate. Adducts appeared most frequently on the cytoskeleton proteins tubulin, actin, and vimentin. It was concluded that rabbit monoclonal 1C6 can be useful for studies that aim to understand the mechanism of neurotoxicity resulting from low-dose exposure to organophosphorus pesticides. American Chemical Society 2021-09-01 2021-10-01 /pmc/articles/PMC8491160/ /pubmed/34469172 http://dx.doi.org/10.1021/acs.jproteome.1c00383 Text en © 2021 The Authors. Published by American Chemical Society https://creativecommons.org/licenses/by-nc-nd/4.0/Permits non-commercial access and re-use, provided that author attribution and integrity are maintained; but does not permit creation of adaptations or other derivative works (https://creativecommons.org/licenses/by-nc-nd/4.0/). |
spellingShingle | Onder, Seda van Grol, Marco Fidder, Alex Xiao, Gaoping Noort, Daan Yerramalla, Udaya Tacal, Ozden Schopfer, Lawrence M. Lockridge, Oksana Rabbit Antidiethoxyphosphotyrosine Antibody, Made by Single B Cell Cloning, Detects Chlorpyrifos Oxon-Modified Proteins in Cultured Cells and Immunopurifies Modified Peptides for Mass Spectrometry |
title | Rabbit Antidiethoxyphosphotyrosine
Antibody, Made
by Single B Cell Cloning, Detects Chlorpyrifos Oxon-Modified Proteins
in Cultured Cells and Immunopurifies Modified Peptides for Mass Spectrometry |
title_full | Rabbit Antidiethoxyphosphotyrosine
Antibody, Made
by Single B Cell Cloning, Detects Chlorpyrifos Oxon-Modified Proteins
in Cultured Cells and Immunopurifies Modified Peptides for Mass Spectrometry |
title_fullStr | Rabbit Antidiethoxyphosphotyrosine
Antibody, Made
by Single B Cell Cloning, Detects Chlorpyrifos Oxon-Modified Proteins
in Cultured Cells and Immunopurifies Modified Peptides for Mass Spectrometry |
title_full_unstemmed | Rabbit Antidiethoxyphosphotyrosine
Antibody, Made
by Single B Cell Cloning, Detects Chlorpyrifos Oxon-Modified Proteins
in Cultured Cells and Immunopurifies Modified Peptides for Mass Spectrometry |
title_short | Rabbit Antidiethoxyphosphotyrosine
Antibody, Made
by Single B Cell Cloning, Detects Chlorpyrifos Oxon-Modified Proteins
in Cultured Cells and Immunopurifies Modified Peptides for Mass Spectrometry |
title_sort | rabbit antidiethoxyphosphotyrosine
antibody, made
by single b cell cloning, detects chlorpyrifos oxon-modified proteins
in cultured cells and immunopurifies modified peptides for mass spectrometry |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8491160/ https://www.ncbi.nlm.nih.gov/pubmed/34469172 http://dx.doi.org/10.1021/acs.jproteome.1c00383 |
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