CausalSentinel

Protein Dossier — APOB (Apolipoprotein B-100)

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
LDL cholesterol -0.19 0.0122 1.84e-54 Wald ratio 1 cis NA
Total cholesterol -0.154 0.0119 1.22e-38 Wald ratio 1 cis NA
HDL cholesterol 0.092 0.0112 2.29e-16 Wald ratio 1 cis NA
Triglycerides -0.0841 0.0112 6.38e-14 Wald ratio 1 cis NA
Neo-openness to experience 0.747 0.235 0.0015 Wald ratio 1 cis NA
Non-cancer illness code self-reported: gastro-oesophageal reflux (gord) or gastric reflux 0.00391 0.00178 0.028 Inverse variance weighted 3 trans NA
Non-cancer illness code self-reported: gastro-oesophageal reflux (gord) or gastric reflux 0.00391 0.00178 0.028 Inverse variance weighted 3 trans NA
Non-cancer illness code self-reported: gastro-oesophageal reflux (gord) or gastric reflux 0.00391 0.00178 0.028 Inverse variance weighted 3 cis NA
Subjective well being -0.0198 0.00948 0.0368 Inverse variance weighted 2 trans NA
Subjective well being -0.0198 0.00948 0.0368 Inverse variance weighted 2 cis NA
ER-negative Breast cancer (Combined Oncoarray; iCOGS; GWAS meta analysis) -0.0701 0.0336 0.0368 Inverse variance weighted 3 trans NA
ER-negative Breast cancer (Combined Oncoarray; iCOGS; GWAS meta analysis) -0.0701 0.0336 0.0368 Inverse variance weighted 3 trans NA
…and 237 more outcomes (see JSON)              

2. pQTL instrument availability (Tier-B probe)

Dataset Trait Author Year
prot-c-2797_56_2 Apo B Suhre K 2019

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

2667 association rows across 1083 traits (2576 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
Low density lipoprotein cholesterol levels 9e-971 rs934197 94 GCST90239655 no MR -> candidate analysis
Total cholesterol levels 5e-796 rs934197 116 GCST90239673 no MR -> candidate analysis
Non-HDL cholesterol levels 2e-670 rs934197 7 GCST90239667 no MR -> candidate analysis
Phospholipids to Total Lipids in IDL percentage 2e-622 rs676210 2 GCST90501130 no MR -> candidate analysis
Triglycerides in small VLDL 3e-506 rs676210 3 GCST90501268 no MR -> candidate analysis
Cholesteryl Esters to Total Lipids in IDL percentage 6e-477 rs676210 2 GCST90501124 no MR -> candidate analysis
Free Cholesterol to Total Lipids in Large LDL percentage 3e-442 rs676210 2 GCST90501151 no MR -> candidate analysis
Cholesterol to Total Lipids in IDL percentage 1e-420 rs676210 2 GCST90501122 no MR -> candidate analysis
Cysteine-rich protein 1 levels 1e-418 rs679899 1 GCST90247157 no MR -> candidate analysis
Concentration of small VLDL particles 2e-401 rs676210 4 GCST90501265 no MR -> candidate analysis
Triglyceride levels 4e-398 rs676210 47 GCST90239661 no MR -> candidate analysis
Triglyceride to phosphoglyceride ratio 2e-389 rs676210 2 GCST90501273 no MR -> candidate analysis
…and 1071 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 1224 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
hypercholesterolemia, autosomal dominant, type B 0.909 established (curated) no MR -> candidate analysis
Hypercholesterolemia 0.916 0.955 established (curated) MR: beta=-0.19, p=1.84e-54 (cis)
familial hypobetalipoproteinemia 1 0.91 established (curated) no MR -> candidate analysis
familial hypercholesterolemia 0.85 0.783 established (curated) no MR -> candidate analysis
metabolic disease 0.942 0.926 multi-layer: burden+GWAS (allelic-series candidate) no MR -> candidate analysis
hypobetalipoproteinemia 0.919 established (curated) no MR -> candidate analysis
coronary artery disorder 0.906 common-variant locus no MR -> candidate analysis
Disorder of lipid metabolism 0.838 0.84 multi-layer: burden+GWAS (allelic-series candidate) no MR -> candidate analysis
cardiovascular disorder 0.867 common-variant locus no MR -> candidate analysis
hyperlipidemia 0.938 common-variant locus no MR -> candidate analysis
hypercholesterolemia, familial, 1 0.931 established (curated) no MR -> candidate analysis
metabolic syndrome 0.884 common-variant locus no MR -> candidate analysis
familial hyperlipidemia 0.886 common-variant locus no MR -> candidate analysis
homozygous familial hypercholesterolemia 0.72 established (curated) no MR -> candidate analysis
Abnormality of the cardiovascular system 0.909 established (curated) no MR -> candidate analysis

Of the 15 rows above, 14 have no MR estimate in this resource. Across all retrieved diseases for this gene: 2 exploratory rare-variant signal(s), 2 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 0 known modulators (Apolipoprotein B-100)
gnomAD constraint pLI=1.8e-14, LOEUF=0.557 — LoF-tolerant
GWAS Catalog 187 unique SNPs / 539 rows
ClinVar 5193 records; 0 pathogenic in sample of 30
PharmGKB/ClinPGx 5 clinical annotations across 3 drugs

Caveats declared by the tools

Sources

Provenance