PXD040754

PXD040754 is an original dataset announced via ProteomeXchange.

Title	Intact Transition Epitope Mapping – Serological Inspection by Epitope EXtraction (ITEM – SIX)
Description	Precision medicine requests accurate serological inspections to precisely stratify patients for targeted treatment. Intact transition epitope mapping analysis proved seroconversion of a model organism's serum when spiked with a monoclonal murine anti-ovalbumin antibody with epitope-resolution. Isolation of the IgG fraction from blood serum applied two consecutive protein precipitation steps followed by ultrafiltration and resulted in an ESI-MS analysis-ready IgG preparation. For epitope mapping by epitope extraction, the ovalbumin antigen was digested with trypsin. After desalting, the peptide mixture was added to the ESI-MS-ready IgG preparation from converted serum and the solution was incubated to form an immune complex between the ovalbumin-derived epitope peptide and the anti-ovalbumin antibody. Then, the entire mixture of proteins and peptides was directly electrosprayed. Sorting of ions in the mass spectrometer's gas phase, dissociation of the immune complex ions by collision induced dissociation, and recording of the epitope peptide ion which had been released from the immune complex revealed the presence of the anti-ovalbumin antibody in converted serum. Mass determination of the complex-released epitope peptide ion with isotope resolution is highly accurate, guaranteeing high specificity of this novel seroconversion analysis approach which is termed Intact Transition Epitope Mapping – Serological Inspections by Epitope EXtraction (ITEM – SIX).
HostingRepository	PRIDE
AnnounceDate	2024-10-07
AnnouncementXML	Submission_2024-10-07_11:15:32.993.xml
DigitalObjectIdentifier
ReviewLevel	Peer-reviewed dataset
DatasetOrigin	Original dataset
RepositorySupport	Unsupported dataset by repository
PrimarySubmitter	Michael Kreutzer
SpeciesList	scientific name: Gallus gallus (Chicken); NCBI TaxID: 9031;
ModificationList	phosphorylated residue; acetylated residue
Instrument	Waters instrument model

Revision	Datetime	Status	ChangeLog Entry
0	2023-03-09 23:14:52	ID requested
⏵ 1	2024-10-07 11:15:33	announced

Dataset with its publication pending

submitter keyword: epitope mapping, ITEM-SIX, blood serum, seroconversion,Offline nanoESI-MS, immune complex analysis

Prof. Dr. Michael O. Glocker
contact affiliation	Director, Proteome Center Rostock, University of Rostock, Germany
contact email	michael.glocker@med.uni-rostock.de
lab head
Michael Kreutzer
contact affiliation	University Medical Center Rostock
contact email	michael.kreutzer@med.uni-rostock.de
dataset submitter

Dataset FTP location NOTE: Most web browsers have now discontinued native support for FTP access within the browser window. But you can usually install another FTP app (we recommend FileZilla) and configure your browser to launch the external application when you click on this FTP link. Or otherwise, launch an app that supports FTP (like FileZilla) and use this address: ftp://ftp.pride.ebi.ac.uk/pride/data/archive/2023/03/PXD040754

PRIDE project URI

• PRIDE
  1. PXD040754
     1. Label: PRIDE project
     2. Name: Intact Transition Epitope Mapping – Serological Inspection by Epitope EXtraction (ITEM – SIX)