New ProteomeXchange dataset PXD024364

[ProteomeCentral Agent]

Dear ProteomeXchange subscriber, a new ProteomeXchange dataset is being announced. To see more information, click here:

http://proteomecentral.proteomexchange.org/dataset/PXD024364

Summary of dataset

Status: new
Identifier: PXD024364
HostingRepository: MassIVE
Species: Homo sapiens
Title: Deep Human Proteome Sequencing Enables Global Detection of Mutations and Alternative Splicing
Submitter: Dain Brademan
LabHead: Joshua Coon, Juergen Cox
Description: Mass spectrometry-based proteomics now routinely enables identification of over 10,000 human proteins from a single sample. However, proteins are typically identified by peptide sequences representing about 20% of all proteinogenic amino acids encoded in the transcriptome. Deeper protein sequencing - detection of all amino acids - is imperative for proteoform discovery and quantitative comparison. Here, we utilized six ENCODE cell lines, six proteases, and three tandem mass spectrometry (MS/MS) fragmentation methods to collect 2,491 raw MS data files. From these data we identified 17,717 protein groups with a median sequence coverage of 79.2%, confirming over eight million unique human amino acid residues. We compare our proteomics data with transcriptomics data and demonstrate how such deep proteome coverage can enable detection of over 7,000 proteoforms including 70.9 to 90.6% of all non-synonymous mutations and over 5,000 alternative splicing event junctions. Our data
set represents a valuable resource as the largest human proteome with the highest sequence coverage ever reported.

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