CausalSentinel

Protein Dossier — DPP4 (Dipeptidyl peptidase 4)

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
Invasive mucinous ovarian cancer 0.5 0.259 0.0537 Wald ratio 1 trans NA
Forearm bone mineral density 0.153 0.0908 0.0911 Wald ratio 1 trans NA
Hippocampus volume -51.4 31 0.0973 Wald ratio 1 trans NA
Nucleus accumbens volume -11.7 7.27 0.106 Wald ratio 1 trans NA
Pallidum volume -19.9 12.6 0.114 Wald ratio 1 trans NA
Putamen volume -61.3 39.4 0.12 Wald ratio 1 trans NA
Depressive symptoms 0.0365 0.0258 0.157 Wald ratio 1 trans NA
Amygdala volume -18.8 15.5 0.226 Wald ratio 1 trans NA
Thalamus volume -48.2 41.3 0.244 Wald ratio 1 trans NA
Lung cancer 0.12 0.121 0.321 Wald ratio 1 trans NA
Primary sclerosing cholangitis 0.173 0.176 0.325 Wald ratio 1 trans NA
Low grade serous ovarian cancer 0.325 0.332 0.328 Wald ratio 1 trans NA
…and 7 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

158 association rows across 129 traits (140 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
DPP4 protein levels 2e-272 rs13015258 4 GCST90469033 no MR -> candidate analysis
Circulating DPP4 levels 8e-268 rs13015258 2 GCST90860464 no MR -> candidate analysis
DPP4/ITGB1 protein level ratio 1e-154 rs35128070 1 GCST90314540 no MR -> candidate analysis
ANPEP/DPP4 protein level ratio 4e-109 rs2193681 1 GCST90313273 no MR -> candidate analysis
Vertex-wise sulcal depth 8e-68 rs2284871 1 GCST90095129 no MR -> candidate analysis
Smoking initiation 2e-38 rs2909449 4 GCST90243968 no MR -> candidate analysis
Vertex-wise cortical thickness 1e-37 rs4140685 1 GCST90095131 no MR -> candidate analysis
Vertex-wise cortical surface area 1e-34 rs2160927 1 GCST90095130 no MR -> candidate analysis
Left hippocampal volume (tail) 9e-34 rs6432708 1 GCST90267907 no MR -> candidate analysis
Left hippocampal volume 2e-32 rs2268894 1 GCST90267908 no MR -> candidate analysis
Right hippocampal volume 3e-31 rs2268894 1 GCST90267930 no MR -> candidate analysis
Self-reported math ability (MTAG) 1e-30 rs2268894 1 GCST006569 no MR -> candidate analysis
…and 117 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 1465 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
chronic kidney disease 0.489 common-variant locus no MR -> candidate analysis
intelligence 0.712 common-variant locus no MR -> candidate analysis
smoking initiation 0.674 common-variant locus no MR -> candidate analysis
asthma 0.594 common-variant locus no MR -> candidate analysis
COVID-19 0.089 common-variant locus no MR -> candidate analysis
mathematical ability 0.582 common-variant locus no MR -> candidate analysis
kidney failure 0.542 common-variant locus no MR -> candidate analysis
rheumatoid arthritis 0.46 common-variant locus no MR -> candidate analysis
Microscopic hematuria 0.489 common-variant locus no MR -> candidate analysis
autism spectrum disorder 0.471 common-variant locus no MR -> candidate analysis
attention deficit-hyperactivity disorder 0.471 common-variant locus no MR -> candidate analysis

Of the 11 rows above, 11 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 19 known modulators (Dipeptidyl peptidase 4)
gnomAD constraint pLI=4.9e-24, LOEUF=0.902 — LoF-tolerant
GWAS Catalog 107 unique SNPs / 242 rows
ClinVar 169 records; 0 pathogenic in sample of 30
PharmGKB/ClinPGx no annotations

Caveats declared by the tools

Sources

Provenance