PXD065108-1

PXD065108 is an original dataset announced via ProteomeXchange.

Title	Dissecting genotype-specific effects of disease-associated genetic variants
Description	Background For many complex diseases, including Parkinson’s disease, regulatory elements located in intergenic regions have been putatively associated with disease risk and development. However, the biological mechanisms linking these intergenic loci to disease pathogenesis remain largely unknown. Fundamentally, this is because these intergenic loci are non-coding, and bespoke approaches to in-depth functional characterisation are required. Here we utilised an integrative, functional approach to identify the genotype-specific impacts of Parkinson’s disease-associated variant rs11610045, located within a complex region on chromosome 12. Methods & Results We utilised CRISPR-Cas9 editing (and reversal) to generate isogenic iPSC clones from the KOLF2.1J line containing either the A|A (WT) or G|G (edited) rs11610045 genotype. We also reverted the G|G genotype back to the A|A genotype in two clones to control for off-target effects. Functional profiling of these clones demonstrated allele-specific regulation of both nearby and distal genes, including THBS1 and PDGFB. Further, affinity purification followed by mass spectrometry identified the differential binding of potential regulatory proteins to the G|G genotype compared to the WT A|A genotype, including the transcription factor TCF7L1. Conclusions Our findings support a model in which non-coding variants, such as rs11610045, impact the expression and downstream activity of multiple genes predominantly through trans-acting mechanisms. In so doing, this study demonstrates a pipeline to delineate SNP-specific impacts in an iPSC model. Finally, we highlight the challenge of aligning genotype dependent expectations of the impact of expression quantitative loci on genes as part of the exploration of how inherited genetic variation contributes to complex genetic disease.
HostingRepository	PRIDE
AnnounceDate	2026-04-07
AnnouncementXML	Submission_2026-04-07_07:31:15.132.xml
DigitalObjectIdentifier
ReviewLevel	Peer-reviewed dataset
DatasetOrigin	Original dataset
RepositorySupport	Unsupported dataset by repository
PrimarySubmitter	Marcin Luzarowski
SpeciesList	scientific name: Homo sapiens (Human); NCBI TaxID: NEWT:9606;
ModificationList	iodoacetamide derivatized residue
Instrument	Orbitrap Fusion

Revision	Datetime	Status	ChangeLog Entry
0	2025-06-17 04:25:04	ID requested
⏵ 1	2026-04-07 07:31:15	announced

Dataset with its publication pending

submitter keyword: Specific alterations, SNV, 5mC, iPSC, CRISPR, SNP, gene expression, 3D structure, gene editing, genetic variation, epigenetic

Marcin Luzarowski
contact affiliation	Core Facility for Mass Spectrometry and Proteomics, Center for Molecular Biology of Heidelberg University (ZMBH), DKFZ-ZMBH Alliance, 69120 Heidelberg, Germany
contact email	m.luzarowski@zmbh.uni-heidelberg.de
lab head
Marcin Luzarowski
contact affiliation	University of Heidelberg
contact email	m.luzarowski@zmbh.uni-heidelberg.de
dataset submitter

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PRIDE project URI

• PRIDE
  1. PXD065108
     1. Label: PRIDE project
     2. Name: Dissecting genotype-specific effects of disease-associated genetic variants