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PXD050493

PXD050493 is an original dataset announced via ProteomeXchange.

Dataset Summary
TitleA High-Performance Workflow for Identifying Site-Specific Crosslinks Originating from a Genetically Incorporated, Photoreactive Amino Acid
DescriptionIn conventional crosslinking mass spectrometry, proteins are crosslinked using a highly selective, bifunctional chemical reagent, which limits crosslinks to residues that are accessible and reactive to the reagent. Genetically incorporating a photoreactive amino acid offers two key advantages: any site can be targeted, including those that are inaccessible to conventional crosslinking reagents, and photoreactive amino acids can potentially react with a broad range of interaction partners. However, broad reactivity imposes additional challenges for crosslink identification. In this study, we incorporate benzoylphenylalanine (BPA), a photoreactive amino acid, at selected sites in an intrinsically disordered region of the human protein HSPB5. We report and characterize a workflow for identifying and visualizing residue-level interactions originating from BPA. We routinely identify 30 to 300 crosslinked peptide spectral matches with this workflow, which is up to ten times more than existing tools for residue-level BPA crosslink identification. Most identified crosslinks are assigned to a precision of one or two residues, which is supported by a high degree of overlap between replicate analyses. Based on these results, we anticipate that this workflow will support the more general use of genetically incorporated, photoreactive amino acids for characterizing the structures of proteins that have resisted high-resolution characterization.
HostingRepositoryPRIDE
AnnounceDate2024-10-22
AnnouncementXMLSubmission_2024-10-22_06:44:21.269.xml
DigitalObjectIdentifier
ReviewLevelPeer-reviewed dataset
DatasetOriginOriginal dataset
RepositorySupportUnsupported dataset by repository
PrimarySubmitterLindsey D. Ulmer
SpeciesList scientific name: Escherichia coli; NCBI TaxID: 562; scientific name: Homo sapiens (Human); NCBI TaxID: 9606;
ModificationListNo PTMs are included in the dataset
InstrumentOrbitrap Fusion Lumos
Dataset History
RevisionDatetimeStatusChangeLog Entry
02024-03-08 17:06:29ID requested
12024-06-10 18:14:55announced
22024-10-22 06:44:21announced2024-10-22: Updated project metadata.
Publication List
Dataset with its publication pending
Keyword List
submitter keyword: human small heat shock proteins, benzoylphenylalanine, Thermo Orbitrap Fusion Lumos Tribrid,Crosslinking
Contact List
Matthew F
contact affiliationUniversity of Washington Department of Chemistry
contact emailmattbush@uw.edu
lab head
Lindsey D. Ulmer
contact affiliationUniversity of Washington Department of Chemistry
contact emaillulmer@uw.edu
dataset submitter
Full Dataset Link List
Dataset FTP location
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PRIDE project URI
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