CausalSentinel

Protein Dossier — RSPO3 (R-spondin-3)

MR feasibility tier: A — Published pQTL-MR estimates exist for this protein (retrieved below - not computed here).

1. Published MR estimates (retrieved, not computed)

Outcome beta se p method nSNP cis/trans coloc
Heel bone mineral density (BMD) T-score automated 0.222 0.0116 1.80e-82 Wald ratio 1 cis 0.000535
HDL cholesterol -0.0733 0.0126 5.76e-09 Wald ratio 1 cis 0.977
Crohn’s disease 0.243 0.0447 5.55e-08 Wald ratio 1 cis 1
Fractured or broken bones in last 5 years -0.168 0.033 3.37e-07 Wald ratio 1 cis 0.0762
Triglycerides 0.0611 0.0122 5.73e-07 Wald ratio 1 cis NA
Diagnoses - main ICD10: I83 Varicose veins of lower extremities -0.405 0.0945 1.80e-05 Wald ratio 1 cis NA
Inflammatory bowel disease 0.152 0.0369 3.70e-05 Wald ratio 1 cis NA
Fasting insulin 0.0481 0.0119 4.85e-05 Wald ratio 1 cis NA
Birth weight 0.0507 0.0133 1.41e-04 Wald ratio 1 cis NA
Non-cancer illness code self-reported: hypertension -0.0586 0.0161 2.84e-04 Wald ratio 1 cis NA
Breast cancer (Combined Oncoarray; iCOGS; GWAS meta analysis) -0.0793 0.0233 6.82e-04 Wald ratio 1 cis NA
Fractured bone site(s): Other bones -0.149 0.0452 0.00101 Wald ratio 1 cis NA
…and 128 more outcomes (see JSON)              

2. pQTL instrument availability (Tier-B probe)

No prot-* pQTL GWAS dataset found for this protein (matched by UniProt accession and symbol).

3. GWAS Catalog results — traits with signal at this locus

1770 association rows across 740 traits (1681 genome-wide significant rows). Associations are loci, not causal claims; the mapped gene at a locus is not necessarily the effector gene.

Trait best p lead SNP n assoc study MR status
Estimated bone mineral density 5e-443 rs7741021 2 GCST90726625 no MR -> candidate analysis
Heel bone mineral density 2e-369 rs7741021 22 GCST006433 MR: beta=0.222, p=1.80e-82 (cis)
Waist-to-hip ratio adjusted for BMI 2e-293 rs72959041 62 GCST008994 no MR -> candidate analysis
Body shape phenotype PC3 1e-277 rs72959041 1 GCST90832991 no MR -> candidate analysis
Waist-hip ratio 1e-274 rs577721086 14 GCST007067 no MR -> candidate analysis
Waist-hip index 2e-243 rs72959041 34 GCST90020027 no MR -> candidate analysis
R-spondin-3 levels 6e-158 rs4644087 7 GCST90249393 no MR -> candidate analysis
Circulating RSPO3 levels 7e-150 rs1936800 4 GCST90860078 no MR -> candidate analysis
RSPO3 protein levels 3e-144 rs1936800 4 GCST90470504 no MR -> candidate analysis
Waist circumference adjusted for body mass index 5e-126 rs72959041 39 GCST009867 no MR -> candidate analysis
Height 5e-125 rs9385404 6 GCST90245848 MR: beta=0.0178, p=0.0979 (cis)
A body shape index 8e-122 rs72959041 20 GCST90020024 no MR -> candidate analysis
…and 728 more traits (see JSON)          

4. Phenome map — where this gene is a genetic locus, vs. where MR exists

Top diseases by Open Targets association (of 331 total). Associations are loci, not causal claims. The causal-status column is a four-state triage per pair: established (curated) = a curated clinical assertion exists (ClinGen/G2P/GEL/Orphanet/ClinVar — any validity level, MR adds little); exploratory rare-variant signal = ExWAS burden evidence without curation — a candidate NEW gene-disease relationship; common-variant locus = GWAS signal, classic pQTL-MR territory; multi-layer = burden+GWAS together, an allelic-series candidate (the strongest causal setup). Burden estimand is carrier-vs-noncarrier, not per-SD MR.

Disease genetic assoc. burden (ExWAS) causal status MR status
Abnormality of the skeletal system 0.822 common-variant locus no MR -> candidate analysis
bone fracture 0.819 common-variant locus no MR -> candidate analysis
type 2 diabetes mellitus 0.788 common-variant locus no MR -> candidate analysis
osteoporosis 0.794 common-variant locus MR: beta=-0.231, p=0.0112 (cis)
metabolic syndrome 0.762 common-variant locus no MR -> candidate analysis
smoking behavior 0.76 common-variant locus no MR -> candidate analysis
endometriosis 0.724 common-variant locus no MR -> candidate analysis
upper extremity fracture 0.736 common-variant locus no MR -> candidate analysis
bone disorder 0.733 common-variant locus MR: beta=-0.741, p=0.167 (cis)
Varicose veins 0.716 common-variant locus MR: beta=-0.405, p=1.80e-05 (cis)
diabetes mellitus 0.708 common-variant locus no MR -> candidate analysis
alcohol drinking 0.713 common-variant locus no MR -> candidate analysis
Crohn disease 0.693 common-variant locus no MR -> candidate analysis
uterine corpus leiomyoma 0.674 common-variant locus no MR -> candidate analysis
metabolic dysfunction-associated steatotic liver disease 0.663 common-variant locus no MR -> candidate analysis

Of the 15 rows above, 12 have no MR estimate in this resource. Across all retrieved diseases for this gene: 0 exploratory rare-variant signal(s), 0 multi-layer (allelic-series candidate) pair(s). Final triage still belongs to a statistical geneticist.

5. Downstream annotation (druggability & safety preview)

Layer Result
ChEMBL druggability 1 known modulators (RSPO3-LGR4)
gnomAD constraint pLI=0.035, LOEUF=0.699 — LoF-tolerant
GWAS Catalog 268 unique SNPs / 613 rows
ClinVar 60 records; 2 pathogenic in sample of 30
PharmGKB/ClinPGx no annotations

Caveats declared by the tools

Sources

Provenance