PXD053506-1

PXD053506 is an original dataset announced via ProteomeXchange.

Title	Identification of Survival Motor Neuron (SMN) complexes in Drosophila using affinity purification-mass spectrometry analysis
Description	Molecular chaperones and co-chaperones are highly conserved cellular components that perform variety of duties related to the proper three-dimensional folding of the proteome. The Survival Motor Neuron (SMN) complex is an RNP assembly chaperone and serves as a paradigm for studying how specific small nuclear (sn)RNAs are identified and paired with their client substrate proteins. SMN forms the oligomeric core of this complex, and missense mutations in its YG box self-interaction domain are known to cause Spinal Muscular Atrophy (SMA). The basic framework for understanding how snRNAs are assembled into U-snRNPs is known, the pathways and mechanisms used by cells to regulate their biogenesis are poorly understood. Given the importance of these processes to normal development as well as neurodegenerative disease, we set out to identify and characterize novel SMN binding partners. Here, we carried out affinity purification mass spectrometry (AP-MS) of SMN using stable fly lines exclusively expressing either wildtype or SMA-causing missense alleles. Bioinformatic analyses of the pulldown data, along with comparisons to proximity labeling studies carried out in human cells, revealed conserved connections to at least two other major chaperone systems including heat shock folding chaperones (HSPs) and histone/nucleosome assembly chaperones.
HostingRepository	PRIDE
AnnounceDate	2024-09-11
AnnouncementXML	Submission_2024-09-11_08:50:35.804.xml
DigitalObjectIdentifier
ReviewLevel	Peer-reviewed dataset
DatasetOrigin	Original dataset
RepositorySupport	Unsupported dataset by repository
PrimarySubmitter	Laura Herring
SpeciesList	scientific name: Drosophila melanogaster (Fruit fly); NCBI TaxID: 7227;
ModificationList	No PTMs are included in the dataset
Instrument	Q Exactive HF

Revision	Datetime	Status	ChangeLog Entry
0	2024-06-28 19:22:50	ID requested
⏵ 1	2024-09-11 08:50:36	announced
2	2024-10-22 06:58:00	announced	2024-10-22: Updated project metadata.

Dataset with its publication pending

submitter keyword: innate immunity,Spinal Muscular Atrophy (SMA), APMS, drosophila

Greg Matera
contact affiliation	Department of Biology, The University of North Carolina at Chapel Hill
contact email	matera@unc.edu
lab head
Laura Herring
contact affiliation	UNC-Chapel Hill
contact email	laura_herring@med.unc.edu
dataset submitter

Dataset FTP location NOTE: Most web browsers have now discontinued native support for FTP access within the browser window. But you can usually install another FTP app (we recommend FileZilla) and configure your browser to launch the external application when you click on this FTP link. Or otherwise, launch an app that supports FTP (like FileZilla) and use this address: ftp://ftp.pride.ebi.ac.uk/pride/data/archive/2024/09/PXD053506

PRIDE project URI

• PRIDE
  1. PXD053506
     1. Label: PRIDE project
     2. Name: Identification of Survival Motor Neuron (SMN) complexes in Drosophila using affinity purification-mass spectrometry analysis