Identifying the Sequence and Distinguishing the Oxidized—Methionine from Phenylalanine Peptides by MALDI TOF/TOF Mass Spectrometry in an Antarctic Bacterium Pseudomonas Syringae
M. V. JagannadhamCentre for Cellular and Molecular Biology (CSIR), Hydearabd-500 007, India.AbstractThis short note highlights a procedure to distinguish the residues having similar masses, oxidized methionine and phenylalanine containing peptides using MALDI TOF/TOF. The isotope intensities give a...
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ftlapress:oai:libertasacademica.com/1677 2023-05-15T13:30:57+02:00 Identifying the Sequence and Distinguishing the Oxidized—Methionine from Phenylalanine Peptides by MALDI TOF/TOF Mass Spectrometry in an Antarctic Bacterium Pseudomonas Syringae Jagannadham, Medicharla Venkata M. V. Jagannadham 2009-10-01 PDF http://www.la-press.com/redirect_file.php?fileId=2366&filename=PRI-2-Jagannadham&fileType=pdf English eng Libertas Academica http://www.la-press.com/identifying-the-sequence-and-distinguishing-the-oxidizedmdashmethionin-article-a1677 Proteomics Insights Volume: 2009 Issue: 2 2009 ftlapress 2016-10-16T19:48:47Z M. V. JagannadhamCentre for Cellular and Molecular Biology (CSIR), Hydearabd-500 007, India.AbstractThis short note highlights a procedure to distinguish the residues having similar masses, oxidized methionine and phenylalanine containing peptides using MALDI TOF/TOF. The isotope intensities give a preliminary recognition of peptides containing oxidized methionine. In the peptides with partial oxidation of methionine a mass difference of 16 Da can be observed in the mass finger print of the peptide. Neutral loss of methane sulphenate (CH3 SOH) in the MS/MS spectra is the most abundant ion in the peptide containing oxidized methionine, whereas this fragment ion is not produced from phenylalanine containing peptide. The mass spectra of methionine, oxidized methionine and phenylalanine containing peptides were examined from the proteins of Pseudomonas syringae Lz4W, whose genome sequence is not known. Other/Unknown Material Antarc* Antarctic Libertas Academica (Open Access Peer Reviewed Medical Journals) Antarctic |
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Libertas Academica (Open Access Peer Reviewed Medical Journals) |
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English |
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Proteomics Insights Volume: 2009 Issue: 2 |
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Proteomics Insights Volume: 2009 Issue: 2 Jagannadham, Medicharla Venkata Identifying the Sequence and Distinguishing the Oxidized—Methionine from Phenylalanine Peptides by MALDI TOF/TOF Mass Spectrometry in an Antarctic Bacterium Pseudomonas Syringae |
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Proteomics Insights Volume: 2009 Issue: 2 |
description |
M. V. JagannadhamCentre for Cellular and Molecular Biology (CSIR), Hydearabd-500 007, India.AbstractThis short note highlights a procedure to distinguish the residues having similar masses, oxidized methionine and phenylalanine containing peptides using MALDI TOF/TOF. The isotope intensities give a preliminary recognition of peptides containing oxidized methionine. In the peptides with partial oxidation of methionine a mass difference of 16 Da can be observed in the mass finger print of the peptide. Neutral loss of methane sulphenate (CH3 SOH) in the MS/MS spectra is the most abundant ion in the peptide containing oxidized methionine, whereas this fragment ion is not produced from phenylalanine containing peptide. The mass spectra of methionine, oxidized methionine and phenylalanine containing peptides were examined from the proteins of Pseudomonas syringae Lz4W, whose genome sequence is not known. |
author2 |
M. V. Jagannadham |
author |
Jagannadham, Medicharla Venkata |
author_facet |
Jagannadham, Medicharla Venkata |
author_sort |
Jagannadham, Medicharla Venkata |
title |
Identifying the Sequence and Distinguishing the Oxidized—Methionine from Phenylalanine Peptides by MALDI TOF/TOF Mass Spectrometry in an Antarctic Bacterium Pseudomonas Syringae |
title_short |
Identifying the Sequence and Distinguishing the Oxidized—Methionine from Phenylalanine Peptides by MALDI TOF/TOF Mass Spectrometry in an Antarctic Bacterium Pseudomonas Syringae |
title_full |
Identifying the Sequence and Distinguishing the Oxidized—Methionine from Phenylalanine Peptides by MALDI TOF/TOF Mass Spectrometry in an Antarctic Bacterium Pseudomonas Syringae |
title_fullStr |
Identifying the Sequence and Distinguishing the Oxidized—Methionine from Phenylalanine Peptides by MALDI TOF/TOF Mass Spectrometry in an Antarctic Bacterium Pseudomonas Syringae |
title_full_unstemmed |
Identifying the Sequence and Distinguishing the Oxidized—Methionine from Phenylalanine Peptides by MALDI TOF/TOF Mass Spectrometry in an Antarctic Bacterium Pseudomonas Syringae |
title_sort |
identifying the sequence and distinguishing the oxidized—methionine from phenylalanine peptides by maldi tof/tof mass spectrometry in an antarctic bacterium pseudomonas syringae |
publisher |
Libertas Academica |
publishDate |
2009 |
url |
http://www.la-press.com/redirect_file.php?fileId=2366&filename=PRI-2-Jagannadham&fileType=pdf |
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Antarctic |
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Antarctic |
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Antarc* Antarctic |
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Antarc* Antarctic |
op_source |
http://www.la-press.com/identifying-the-sequence-and-distinguishing-the-oxidizedmdashmethionin-article-a1677 |
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1766014546881806336 |