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PXD027600

PXD027600 is an original dataset announced via ProteomeXchange.

Dataset Summary
TitleActivity-based protein profiling in human M2 macrophages using DHA-based photoaffinity probes
Description17-Hydroxydocosahexaenoic acid (17-HDHA), an oxidative metabolite of the fish oil constituent docosahexaenoic acid (DHA, 22:6 n-3), is a signaling lipid with anti-inflammatory properties. The molecular mechanisms underlying the biological effect of 17-HDHA are poorly understood. Here, we report the design, synthesis and application of a complementary pair of bioorthogonal photoreactive probes based on the polyunsaturated scaffold of 17-HDHA and DHA. In these probes, an alkyne serves as a handle to introduce a fluorescent reporter group or a biotin-affinity tag via copper(I)-catalyzed azide-alkyne cycloaddition. This pair of chemical probes was used to map specific protein interaction partners of 17-HDHA in primary human macrophages, which led to the identification of prostaglandin reductase 1 (PTGR1) as a target of 17-HDHA, but not DHA. Ensuing biochemical studies revealed that PTGR1 converted 17-HDHA into 17-oxo-DHA, which inhibited the biosynthesis of the pro-inflammatory lipids 5-HETE and LTB4 in human macrophages and neutrophils.
HostingRepositoryPRIDE
AnnounceDate2024-10-22
AnnouncementXMLSubmission_2024-10-22_05:45:14.077.xml
DigitalObjectIdentifier
ReviewLevelPeer-reviewed dataset
DatasetOriginOriginal dataset
RepositorySupportUnsupported dataset by repository
PrimarySubmitterBerend Gagestein
SpeciesList scientific name: Homo sapiens (Human); NCBI TaxID: 9606;
ModificationListNo PTMs are included in the dataset
InstrumentSynapt MS
Dataset History
RevisionDatetimeStatusChangeLog Entry
02021-07-27 07:39:30ID requested
12023-04-28 02:38:31announced
22023-11-14 08:45:23announced2023-11-14: Updated project metadata.
32024-10-22 05:45:15announced2024-10-22: Updated project metadata.
Publication List
10.1021/jacs.2c06827;
Gagestein B, von Hegedus JH, Kwekkeboom JC, Heijink M, Blomberg N, van der Wel T, Florea BI, van den Elst H, Wals K, Overkleeft HS, Giera M, Toes REM, Ioan-Facsinay A, van der Stelt M, Comparative Photoaffinity Profiling of Omega-3 Signaling Lipid Probes Reveals Prostaglandin Reductase 1 as a Metabolic Hub in Human Macrophages. J Am Chem Soc, 144(41):18938-18947(2022) [pubmed]
Keyword List
submitter keyword: Human, ABPP, photoaffinity, macrophage
Contact List
Mario van der Stelt
contact affiliationMolecular Physiology, Leiden Institute of Chemistry, Leiden University, The Netherlands
contact emailm.van.der.stelt@chem.leidenuniv.nl
lab head
Berend Gagestein
contact affiliationLeiden University
contact emailb.gagestein@lic.leidenuniv.nl
dataset submitter
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Dataset FTP location
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PRIDE project URI
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