PXD014956

PXD014956 is an original dataset announced via ProteomeXchange.

Title	Reproducibility, specificity and accuracy of DIA quantification - OpenSWATH
Description	Data dependent acquisition (DDA) is the method of choice for mass spectrometry based proteomics discovery experiments, data-independent acquisition (DIA) is steadily becoming more important. One of the most important requirement to perform a DIA analysis is the availability of spectral libraries for the peptide identification and quantification. Several researches were already conducted regarding the creation of spectral libraries from DDA analyses and obtaining identifications with these in DIA measurements. But so far only few experiments were conducted, to estimate the effect of these libraries on the quantitative level. In this work we created a spike-in gold standard dataset with known contents and ratios of proteins in a complex sample matrix. With this dataset, we first created spectral libraries using different sample preparation approaches with and without sample prefractionation on peptide and protein level. Two different search engines were used for protein identification. In total, five different spike-in states were compared with DIA analyses, comparing eight different spectral libraries generated by varying approaches and one library free method, as well as one default DDA analysis. Not only the number of identifications on peptide and protein level in the spectral libraries and the corresponding analyses was inspected, but also the number of expected and identified significant quantifications and their ratios were thoroughly examined. We found, that while libraries of prefractionationed samples are generally larger, the actually yielded identifications are not increased compared to repetitive non-fractionated measurements. Furthermore, we show that the accuracy of the quantifications is also highly dependent on the applied spectra library and also whether the peptide or protein level is analysed. Overall, the reproducibility and accuracy of DIA is superior to DDA in all analysed approaches.
HostingRepository	PRIDE
AnnounceDate	2019-11-08
AnnouncementXML	Submission_2020-02-17_22:49:06.xml
DigitalObjectIdentifier
ReviewLevel	Peer-reviewed dataset
DatasetOrigin	Original dataset
RepositorySupport	Unsupported dataset by repository
PrimarySubmitter	Julian Uszkoreit
SpeciesList	scientific name: Mus musculus (Mouse); NCBI TaxID: 10090;
ModificationList	amidated residue; monohydroxylated residue; iodoacetamide derivatized residue; deamidated residue
Instrument	Q Exactive HF

Revision	Datetime	Status	ChangeLog Entry
0	2019-08-08 06:24:23	ID requested
1	2019-11-08 07:59:58	announced
2	2019-11-11 04:12:23	announced	2019-11-11: Updated publication reference for PubMed record(s): 31699904.
⏵ 3	2020-02-17 22:49:07	announced	2019-11-11: Updated publication reference for PubMed record(s): 31699904. 2020-02-18: Updated publication reference for PubMed record(s): 31699904.

Barkovits K, Pacharra S, Pfeiffer K, Steinbach S, Eisenacher M, Marcus K, Uszkoreit J, Reproducibility, Specificity and Accuracy of Relative Quantification Using Spectral Library-based Data-independent Acquisition. Mol Cell Proteomics, 19(1):181-197(2020) [pubmed]

submitter keyword: DIA, C2C12, spike-in

Katrin Marcus
contact affiliation	Ruhr University Bochum Medical Faculty Medizinisches Proteom-Center
contact email	katrin.marcus@rub.de
lab head
Julian Uszkoreit
contact affiliation	Ruhr-Universität Bochum, Medical Faculty, Medizinisches Proteom-Center, Medical Bioinformatics / Functional Proteomics
contact email	julian.uszkoreit@rub.de
dataset submitter

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PRIDE project URI

• PRIDE
  1. PXD014956
     1. Label: PRIDE project
     2. Name: Reproducibility, specificity and accuracy of DIA quantification - OpenSWATH