PXD049684-1

PXD049684 is an original dataset announced via ProteomeXchange.

Title	Distinct interactomes of ADAR1 nuclear and cytoplasmic protein isoforms and their responses to Interferon induction
Description	Adenosine deaminase acting on RNA 1 (ADAR1), is an enzyme that catalyzes the conversion of adenosine to inosine in double-stranded RNA, a process critical for regulation of innate immune response and distinguishing between ‘self and non-self RNA’. It is expressed as two isoforms: nucleolar p110 and cytoplasmic, interferon (IFN)-inducible, p150. The interactome of the p110 under steady-state conditions is well-studied; however, less is known about the interactions of the p150 isoform, particularly during IFN response. To elucidate ADAR1's protein interactions during IFN stimulation, alongside steady-state conditions, three distinct methods of enrichment were used followed by liquid chromatography-tandem mass spectrometry (LC-MS/MS). These included: immunoprecipitation (IP) of endogenous ADAR1, IP of Strep II-tagged ADAR1, and proximity labeling using BioID. Individual ADAR1 isoforms (p110 and p150) and their respective dsRNA binding-deficient mutants were created to discern isoform-specific and dsRNA-dependent interactions. Altogether, our results reveal a comprehensive ADAR1 interaction map, identifying both known and novel partners, and highlighting the isoform-specific and dsRNA-binding-dependent nature of ADAR1 interactions. Under IFN stimulation, ADAR1's interaction spectrum encompasses viral replication inhibitors and LINE-1 regulators. Mimicking viral infection with HMW poly(I:C) changed the proximal network of proteins for both isoforms. Our findings provide new insights into ADAR1's roles and its dynamic during IFN response.
HostingRepository	PRIDE
AnnounceDate	2024-12-05
AnnouncementXML	Submission_2024-12-05_05:16:05.680.xml
DigitalObjectIdentifier
ReviewLevel	Peer-reviewed dataset
DatasetOrigin	Original dataset
RepositorySupport	Unsupported dataset by repository
PrimarySubmitter	Katerina Hanakova
SpeciesList	scientific name: Homo sapiens (Human); NCBI TaxID: 9606;
ModificationList	No PTMs are included in the dataset
Instrument	Orbitrap Fusion Lumos

Revision	Datetime	Status	ChangeLog Entry
0	2024-02-19 07:02:08	ID requested
⏵ 1	2024-12-05 05:16:06	announced

10.1093/NAR/GKAE1106;

submitter keyword: DIA, IFN response, IP,ADAR, BioID, interactome, DDA, LC-MS/MS

Zbynek Zdrahal
contact affiliation	Proteomics Core Facility and Research Group Proteomics, CEITEC-MU, Masaryk University, Brno, Czech Republic
contact email	zdrahal@sci.muni.cz
lab head
Katerina Hanakova
contact affiliation	CEITEC MU
contact email	katerina.hanak@gmail.com
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/2024/12/PXD049684

PRIDE project URI

• PRIDE
  1. PXD049684
     1. Label: PRIDE project
     2. Name: Distinct interactomes of ADAR1 nuclear and cytoplasmic protein isoforms and their responses to Interferon induction