Proteotyping of <i>Campylobacter jejuni</i> by MALDI-TOF MS and Strain Solution Version 2 Software

Identification of microorganisms by MALDI-TOF MS has become a popular method in the past 20 years. Strain Solution ver. 2 software appended with MALDI-TOF MS enables accurate discrimination of serotypes and strains beyond the genus and species level by creating a theoretical mass-based database. In...

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Main Authors: Teruyo Ojima-Kato, Satomi Nagai, Akane Fujita, Junko Sakata, Hiroto Tamura
Format: Article
Language:English
Published: MDPI AG 2023-01-01
Series:Microorganisms
Subjects:
Online Access:https://www.mdpi.com/2076-2607/11/1/202
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author Teruyo Ojima-Kato
Satomi Nagai
Akane Fujita
Junko Sakata
Hiroto Tamura
author_facet Teruyo Ojima-Kato
Satomi Nagai
Akane Fujita
Junko Sakata
Hiroto Tamura
author_sort Teruyo Ojima-Kato
collection DOAJ
description Identification of microorganisms by MALDI-TOF MS has become a popular method in the past 20 years. Strain Solution ver. 2 software appended with MALDI-TOF MS enables accurate discrimination of serotypes and strains beyond the genus and species level by creating a theoretical mass-based database. In this study, we constructed a theoretical mass database with the validated biomarkers to proteotype <i>Campylobacter jejuni</i>. Using 10 strains belonging to <i>Campylobacter</i> spp. available from culture collections and 41 <i>Campylobacter jejuni</i> strains isolated from humans and foods, the ribosomal protein subunits L36, L32, S14, L24, L23, L7/L12, and S11 could be selected as the effective biomarkers for the proteotyping of <i>C. jejuni</i> at MALDI-TOF MS. An accurate database of their theoretical mass-based values was constructed by matching these gene DNA sequences and the observed mass peaks. We attempted to automatically classify 41 strains isolated from nature using this database and Strain Solution ver. 2 software, and 38 strains (93%) were correctly classified into the intended group based on the theoretical mass-based values. Thus, the seven biomarkers found in this study and Strain Solution ver. 2 are promising for the proteotyping of <i>C. jejuni</i> by MALDI-TOF MS.
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spelling doaj.art-dcb37cadcd504539a905d3b11b14ae872023-11-30T23:37:54ZengMDPI AGMicroorganisms2076-26072023-01-0111120210.3390/microorganisms11010202Proteotyping of <i>Campylobacter jejuni</i> by MALDI-TOF MS and Strain Solution Version 2 SoftwareTeruyo Ojima-Kato0Satomi Nagai1Akane Fujita2Junko Sakata3Hiroto Tamura4School of Agriculture, Meijo University, Shiogamaguchi, Tenpaku-ku, Nagoya 468-0073, JapanSchool of Agriculture, Meijo University, Shiogamaguchi, Tenpaku-ku, Nagoya 468-0073, JapanSchool of Agriculture, Meijo University, Shiogamaguchi, Tenpaku-ku, Nagoya 468-0073, JapanOsaka Institute of Public Health, Nakamichi, Higashinari-ku, Osaka 537-0025, JapanSchool of Agriculture, Meijo University, Shiogamaguchi, Tenpaku-ku, Nagoya 468-0073, JapanIdentification of microorganisms by MALDI-TOF MS has become a popular method in the past 20 years. Strain Solution ver. 2 software appended with MALDI-TOF MS enables accurate discrimination of serotypes and strains beyond the genus and species level by creating a theoretical mass-based database. In this study, we constructed a theoretical mass database with the validated biomarkers to proteotype <i>Campylobacter jejuni</i>. Using 10 strains belonging to <i>Campylobacter</i> spp. available from culture collections and 41 <i>Campylobacter jejuni</i> strains isolated from humans and foods, the ribosomal protein subunits L36, L32, S14, L24, L23, L7/L12, and S11 could be selected as the effective biomarkers for the proteotyping of <i>C. jejuni</i> at MALDI-TOF MS. An accurate database of their theoretical mass-based values was constructed by matching these gene DNA sequences and the observed mass peaks. We attempted to automatically classify 41 strains isolated from nature using this database and Strain Solution ver. 2 software, and 38 strains (93%) were correctly classified into the intended group based on the theoretical mass-based values. Thus, the seven biomarkers found in this study and Strain Solution ver. 2 are promising for the proteotyping of <i>C. jejuni</i> by MALDI-TOF MS.https://www.mdpi.com/2076-2607/11/1/202<i>Campylobacter jejuni</i>MALDI-TOF MSproteotypingstrain solutiontheoretical mass database
spellingShingle Teruyo Ojima-Kato
Satomi Nagai
Akane Fujita
Junko Sakata
Hiroto Tamura
Proteotyping of <i>Campylobacter jejuni</i> by MALDI-TOF MS and Strain Solution Version 2 Software
Microorganisms
<i>Campylobacter jejuni</i>
MALDI-TOF MS
proteotyping
strain solution
theoretical mass database
title Proteotyping of <i>Campylobacter jejuni</i> by MALDI-TOF MS and Strain Solution Version 2 Software
title_full Proteotyping of <i>Campylobacter jejuni</i> by MALDI-TOF MS and Strain Solution Version 2 Software
title_fullStr Proteotyping of <i>Campylobacter jejuni</i> by MALDI-TOF MS and Strain Solution Version 2 Software
title_full_unstemmed Proteotyping of <i>Campylobacter jejuni</i> by MALDI-TOF MS and Strain Solution Version 2 Software
title_short Proteotyping of <i>Campylobacter jejuni</i> by MALDI-TOF MS and Strain Solution Version 2 Software
title_sort proteotyping of i campylobacter jejuni i by maldi tof ms and strain solution version 2 software
topic <i>Campylobacter jejuni</i>
MALDI-TOF MS
proteotyping
strain solution
theoretical mass database
url https://www.mdpi.com/2076-2607/11/1/202
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