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PXD058873

PXD058873 is an original dataset announced via ProteomeXchange.

Dataset Summary
TitlePhylo-proteomics Reveals Conserved Patterns of Axonemal Dynein Methylation Across the Motile Ciliated Eukaryotes (addendum)
DescriptionAssembly of the axonemal dynein motors that power ciliary motility occurs in the cytoplasm. Studies in a broad array of organisms have revealed that at least nineteen cytosolic factors are specifically required for this process. Recently, one of these factors (DNAAF3/PF22) was identified as an S-adenosylmethionine-dependent methyltransferase. Furthermore, examination of dyneins from the green alga Chlamydomonas found that axonemal dyneins are methylated at sub-stoichiometric levels on multiple sites including key Lys and Arg residues in several of the nucleotide binding domains and on the microtubule-binding region. Given the highly conserved nature of axonemal dyneins and their cytoplasmic assembly factors, one key question is whether methylation is exclusively present only in dyneins from the chlorophyte algae, or if these modifications occur more broadly throughout the motile ciliated eukaryotes. Here we take a phylo-proteomic approach and examine dynein methylation in a wide range of eukaryotic organisms bearing motile cilia. We find unambiguous evidence for methylation of axonemal dyneins in alveolates, chlorophytes, trypanosomes, and throughout most of the metazoa, including ctenophores, echinoderms, mollusks, ascidians, and vertebrates. Intriguingly, we were unable to identify a single instance of methylation on Drosophila sperm dynein even though dipterans express a Dnaaf3 ortholog, or in spermatozoids of the fern Ceratopteris which assembles inner arms but lacks both outer arm dyneins and DNAAF3. Thus, methylation is a post-translational feature of axonemal dyneins that has been broadly conserved in most eukaryotic groups suggesting the existence of a post-translational dynein code that variably modifies the function of these motors.
HostingRepositoryPRIDE
AnnounceDate2025-02-20
AnnouncementXMLSubmission_2025-02-20_07:21:16.168.xml
DigitalObjectIdentifier
ReviewLevelPeer-reviewed dataset
DatasetOriginOriginal dataset
RepositorySupportUnsupported dataset by repository
PrimarySubmitterJeremy Balsbaugh
SpeciesList scientific name: Chlamydomonas sp. HS-5; NCBI TaxID: 108458; scientific name: Drosophila willistoni; NCBI TaxID: 7260;
ModificationListmonomethylated residue; trimethylated residue; phosphorylated residue; acetylated residue; monohydroxylated residue; dimethylated residue; iodoacetamide derivatized residue
InstrumentOrbitrap Eclipse
Dataset History
RevisionDatetimeStatusChangeLog Entry
02024-12-14 12:54:37ID requested
12025-02-20 07:21:16announced
Publication List
Sakato-Antoku M, Patel N, Inaba M, Rao Q, Yang J, Patel-King RS, Inaba K, Balsbaugh JL, King SM, Phyloproteomics reveals conserved patterns of axonemal dynein methylation across the motile ciliated eukaryotes. Mol Biol Cell, 36(4):ar49(2025) [pubmed]
10.1091/mbc.e25-02-0055;
Keyword List
submitter keyword: DHC, methylation, dynein, phosphorylation,cilia, drosophila
Contact List
Jeremy Balsbaugh
contact affiliationProteomics & Metabolomics Facility, Center for Open Research Resources & Equipment University of Connecticut Storrs, CT 06269
contact emailjeremy.balsbaugh@uconn.edu
lab head
Jeremy Balsbaugh
contact affiliationUniversity of Connecticut
contact emailjeremy.balsbaugh@uconn.edu
dataset submitter
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