SVEP1 is a putative extracellular matrix (ECM) protein that promotes atherosclerosis in humans and mice. Antibodies that reliably recognize SVEP1 in situ have not been successfully developed. As a result, little is known about how and where SVEP1 may integrate into the ECM or which cell types it may influence. We used a combination of affinity and proximity-based experimental approaches to address this question. The bait proteins for these experiments included recombinant murine SVEP1 fused to a Myc-tag to allow for affinity-based co-immunoprecipitation or the promiscuous biotin ligase mini-Turbo ID to allow for proximity-based labeling and pulldown with streptavidin beads. The prey proteins were derived from enriched media of cultured murine VSMCs. Two independent experiments were performed using each approach and a reproducibility criterion of P < 0.10 for enrichment was applied across all experimental data. In addition to SVEP1, other ECM proteins that were identified include Basement membrane-specific heparan sulfate proteoglycan core protein (HSPG2, also known as Perlecan), Fibronectin, Laminin subunit gamma-1, and Nidogen-1. Together, these proteins comprise the major non-collagen basement membrane components. This suggests SVEP1 may be integrated into the basement membrane.
[doi:10.25345/C54M91F6H]
[dataset license: CC0 1.0 Universal (CC0 1.0)]
Keywords: SVEP1 ; basement membrane
Principal Investigators: (in alphabetical order) |
Nathan Stitziel MD, PhD, Washington University School of Medicine, USA |
Submitting User: | jimmalone |
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Owner | Reanalyses | |
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