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PXD022267-1

PXD022267 is an original dataset announced via ProteomeXchange.

Dataset Summary
TitleComplex-dependent histone acetyltransferase activity of KAT8 determines its role in transcriptional regulation and cellular homeostasis [AP-MS]
DescriptionHistone acetylation is associated with open chromatin and transcriptionally active genes. Specifically, acetylation of lysine 16 on histone H4 (H4K16ac) has been shown to prevent the assembly of nucleosomal arrays in vitro. This modification is catalyzed by the MYST-family histone acetyltransferase KAT8 (also known as MOF and MYST1), which is part of two distinct chromatin-associated complexes: NSL and MSL. While extensively studied in Drosophila, the functions of H4K16ac and the two KAT8-containing complexes in mammalian cells are not well understood. Here, we demonstrate a surprising complex-dependent activity of KAT8. We found that KAT8 catalyzes H4K5 and H4K8 acetylation as part of the NSL complex, whereas it catalyzes the bulk of H4K16 acetylation as part of the MSL complex. Furthermore, we show that the core proteins of the MSL complex and H4K16ac are not required for cell proliferation and global chromatin accessibility, whereas the NSL complex is essential for cell survival, as it is enriched at the promoters of housekeeping genes and is required for their transcription initiation. In summary, we show that KAT8 switches catalytic activity and function depending on its associated proteins, and that, as part of the NSL complex, it catalyzes H4K5 and H4K8 acetylation required for the expression of genes essential for cell survival
HostingRepositoryPRIDE
AnnounceDate2021-06-29
AnnouncementXMLSubmission_2021-06-29_10:17:16.629.xml
DigitalObjectIdentifier
ReviewLevelPeer-reviewed dataset
DatasetOriginOriginal dataset
RepositorySupportUnsupported dataset by repository
PrimarySubmitterPavel Shliaha
SpeciesList scientific name: Homo sapiens (Human); NCBI TaxID: 9606;
ModificationListacetylated residue
InstrumentOrbitrap Fusion Lumos
Dataset History
RevisionDatetimeStatusChangeLog Entry
02020-10-30 04:15:11ID requested
12021-06-29 10:17:17announced
Publication List
Radzisheuskaya A, Shliaha PV, Grinev VV, Shlyueva D, Damhofer H, Koche R, Gorshkov V, Kovalchuk S, Zhan Y, Rodriguez KL, Johnstone AL, Keogh MC, Hendrickson RC, Jensen ON, Helin K, Complex-dependent histone acetyltransferase activity of KAT8 determines its role in transcription and cellular homeostasis. Mol Cell, 81(8):1749-1765.e8(2021) [pubmed]
Keyword List
submitter keyword: histone, MSL, NSL, KAT8
Contact List
Ole N Jensen
contact affiliationUniversity of Southern Denmark, Department of Biochemistryand Molecular Biology, Protein Research Group (lab head)
contact emailjenseno@bmb.sdu.dk
lab head
Pavel Shliaha
contact affiliationSyddansk University
contact emailpavels@bmb.sdu.dk
dataset submitter
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