PXD021174

PXD021174 is an original dataset announced via ProteomeXchange.

Title	Human and E. coli peptides used for predicting FAIMS CVs
Description	Peptide ion mobility adds an extra dimension of separation to mass spectrometry-based proteomics. The ability to accurately predict peptide ion mobility would be useful to expedite assay development, or as an additional constraint for peptide identification. Although there are methods to accurately predict peptide mobility in drift tube ion mobility, more work is needed to predict mobility through the high-field asymmetric waveform ion mobility (FAIMS). Here, we show that prediction of peptide FAIMS ion mobility is not a simple regression due to peptides observed at multiple mobilities, but we successfully model this problem as multi-label classification. We trained two separate models, a random forest and a long-term short-term memory neural network. Both models had different strengths, and the ensemble average of model predictions produced higher f2 score than either model alone. Finally, we explore why the models are wrong, and demonstrate predictive performance of f2=0.66 (AUROC = 0.928) on a new test dataset of nearly 40,000 different E. coli peptides.
HostingRepository	PanoramaPublic
AnnounceDate	2024-07-26
AnnouncementXML	Submission_2024-07-26_15:09:46.086.xml
DigitalObjectIdentifier
ReviewLevel	Non peer-reviewed dataset
DatasetOrigin	Original dataset
RepositorySupport	Supported dataset by repository
PrimarySubmitter	Jesse Meyer
SpeciesList	scientific name: Escherichia coli; NCBI TaxID: 562; scientific name: Homo sapiens; NCBI TaxID: 9606;
ModificationList	Acetyl; Carbamidomethyl; Oxidation
Instrument	Orbitrap Fusion Lumos

Revision	Datetime	Status	ChangeLog Entry
0	2020-08-27 07:47:56	ID requested
⏵ 1	2024-07-26 15:09:46	announced

no publication

submitter keyword: FAIMS, ion mobility, peptides, machine learning

Jesse Meyer
contact affiliation	Medical College of Wisconsin
contact email	jessegmeyer@gmail.com
lab head
Jesse Meyer
contact affiliation	Medical College of Wisconsin
contact email	jessegmeyer@gmail.com
dataset submitter

Panorama Public dataset URI