Evidence map›Paper›PMID 19596251›Full record

ArticleAnalytical biochemistry2009

Mass spectral characterization of organophosphate-labeled lysine in peptides.

Hasmik Grigoryan, Bin Li, Weihua Xue, Marine Grigoryan, Lawrence M Schopfer, Oksana Lockridge

Abstract read
In one paragraph

Article in Analytical biochemistry, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
3.4field-weighted citation impact, top 8% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

15 citing papers in PubMed, 48 citations in OpenAlex.

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  10. Polyclonal antibody to soman-tyrosine.Chemical research in toxicology · 2013
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors at 1 institution in 1 country.

Hasmik GrigoryanEppley Institute, University of Nebraska Medical Center, Omaha, NE 68198, USA.
Bin Li
Weihua Xue
Marine Grigoryan
Lawrence M Schopfer
Oksana Lockridge
University of Nebraska Medical Center · US

Funding

UNMC/EPPLEY CANCER CENTER SUPPORT GRANTP30CA036727 · NCI · UNIVERSITY OF NEBRASKA MEDICAL CENTER · PI Apar Kishor Ganti · 1985 to 2026
$55.0M
Mass Spectrometry in Clinical Diagnosis of Nerve Agent ExposureU01NS058056 · NINDS · UNIVERSITY OF NEBRASKA MEDICAL CENTER · PI LOCKRIDGE, OKSANA · 2006 to 2008
$1.4M
NCI NIH HHS P30 CA036727NCI NIH HHS P30CA36727NINDS NIH HHS U01 NS058056
6 · The paper itself

Abstract

Organophosphate (OP) esters bind covalently to the active site serine of enzymes in the serine hydrolase family. Recently, mass spectrometry identified covalent binding of OPs to tyrosine in a wide variety of proteins when purified proteins were incubated with OPs. In the current work, manual inspection of tandem mass spectrometry (MS/MS) data led to the realization that lysines also make a covalent bond with OPs. OP-labeled lysine residues were found in seven proteins that had been treated with either chlorpyrifos oxon (CPO) or diisopropylfluorophosphate (DFP): human serum albumin (K212, K414, K199, and K351), human keratin 1 (K211 and K355), human keratin 10 (K163), bovine tubulin alpha (K60, K336, K163, K394, and K401), bovine tubulin beta (K58), bovine actin (K113, K291, K326, K315, and K328), and mouse transferrin (K296 and K626). These results suggest that OP binding to lysine is a general phenomenon. Characteristic fragments specific for CPO-labeled lysine appeared at 237.1, 220.0, 192.0, 163.9, 128.9, and 83.9amu. Characteristic fragments specific for DFP-labeled lysine appeared at 164.0, 181.2, and 83.8amu. This new OP-binding motif to lysine suggests new directions to search for mechanisms of long-term effects of OP exposure and in the search for biomarkers of OP exposure.

Indexed as

Amino Acid SequenceAnimalsCattleChlorpyrifosHumansIsoflurophateLysineMiceMolecular Sequence DataOrganophosphatesPeptide FragmentsProteinsStaining and LabelingTandem Mass SpectrometryChlorpyrifosIsoflurophateLysineO,O-diethyl O-3,5,6-trichloro-2-pyridyl phosphateOrganophosphatesPeptide FragmentsProteins

Identifiers

PMID19596251
PMCPMC2735595
OpenAlexW2028208414

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.