Literature DB >> 21035602

Absolute quantification method and validation of airborne snow crab allergen tropomyosin using tandem mass spectrometry.

Anas M Abdel Rahman1, Andreas L Lopata, Edward W Randell, Robert J Helleur.   

Abstract

Measuring the levels of the major airborne allergens of snow crab in the workplace is very important in studying the prevalence of crab asthma in workers. Previously, snow crab tropomyosin (SCTM) was identified as the major aeroallergen in crab plants and a unique signature peptide was identified for this protein. The present study advances our knowledge on aeroallergens by developing a method of quantification of airborne SCTM by using isotope dilution mass spectrometry. Liquid chromatography tandem mass spectrometry was developed for separation and analysis of the signature peptides. The tryptic digestion conditions were optimized to accomplish complete digestion. The validity of the method was studied using international conference on harmonization protocol, Where 2-9% for CV (precision) and 101-110% for accuracy, at three different levels of quality control. Recovery of the spiked protein from PTFE and TopTip filters was measured to be 99% and 96%, respectively. To further demonstrate the applicability and the validity of the method for real samples, 45 kg of whole snow crab were processed in an enclosed (simulated) crab processing line and air samples were collected. The levels of SCTM ranged between 0.36-3.92 μg m(-3) and 1.70-2.31 μg m(-3) for butchering and cooking stations, respectively. Crown
Copyright © 2010. Published by Elsevier B.V. All rights reserved.

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Year:  2010        PMID: 21035602     DOI: 10.1016/j.aca.2010.09.040

Source DB:  PubMed          Journal:  Anal Chim Acta        ISSN: 0003-2670            Impact factor:   6.558


  4 in total

1.  Dystrophin Protein Quantification as a Duchenne Muscular Dystrophy Diagnostic Biomarker in Dried Blood Spots Using Multiple Reaction Monitoring Tandem Mass Spectrometry: A Preliminary Study.

Authors:  Refat M Nimer; Khalid M Sumaily; Arwa Almuslat; Mai Abdel Jabar; Essa M Sabi; Mohammad A Al-Muhaizea; Anas M Abdel Rahman
Journal:  Molecules       Date:  2022-06-07       Impact factor: 4.927

Review 2.  Allergic reactions to Anisakis found in fish.

Authors:  Natalie E Nieuwenhuizen; Andreas L Lopata
Journal:  Curr Allergy Asthma Rep       Date:  2014-08       Impact factor: 4.806

Review 3.  Targeted proteomics: Current status and future perspectives for quantification of food allergens.

Authors:  Nagib Ahsan; R Shyama Prasad Rao; Philip A Gruppuso; Bharat Ramratnam; Arthur R Salomon
Journal:  J Proteomics       Date:  2016-04-22       Impact factor: 4.044

Review 4.  Airborne seafood allergens as a cause of occupational allergy and asthma.

Authors:  Andreas L Lopata; Mohamed F Jeebhay
Journal:  Curr Allergy Asthma Rep       Date:  2013-06       Impact factor: 4.806

  4 in total

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