CausalSentinel

Protein Dossier — CRTAC1 (Cartilage acidic protein 1)

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
Diagnoses - main ICD10: I84 Haemorrhoids -0.155 0.0529 0.00343 Wald ratio 1 cis NA
Cancer code self-reported: basal cell carcinoma -0.286 0.0989 0.00382 Wald ratio 1 cis NA
Thyroid cancer 0.582 0.242 0.0163 Wald ratio 1 cis NA
Total cholesterol -0.0355 0.0153 0.0203 Wald ratio 1 cis NA
Squamous cell lung cancer -0.192 0.0846 0.023 Wald ratio 1 cis NA
Years of schooling 0.026 0.0116 0.0244 Wald ratio 1 cis NA
Low grade serous ovarian cancer -0.314 0.139 0.0245 Wald ratio 1 cis NA
Diagnoses - main ICD10: K44 Diaphragmatic hernia -0.143 0.0653 0.0282 Wald ratio 1 cis NA
LDL cholesterol -0.0329 0.0156 0.0348 Wald ratio 1 cis NA
Fasting proinsulin 0.0491 0.0234 0.0358 Wald ratio 1 cis NA
Lung cancer -0.112 0.0538 0.0381 Wald ratio 1 cis NA
Fractured bone site(s): Wrist -0.114 0.0565 0.0432 Wald ratio 1 cis NA
…and 105 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

242 association rows across 178 traits (214 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
Circulating CRTAC1 levels 5e-2781 rs56007204 3 GCST90860500 no MR -> candidate analysis
CRTAC1 protein levels 2e-253 rs7899412 20 GCST90468870 no MR -> candidate analysis
Cartilage acidic protein 1 levels 5e-224 rs684225 4 GCST90247146 no MR -> candidate analysis
Serum levels of protein CRTAC1 4e-62 rs588061 1 GCST90089108 no MR -> candidate analysis
Blood protein levels 9e-47 rs588061 1 GCST006585 no MR -> candidate analysis
Cerebrospinal fluid protein CRTAC1 levels 1e-28 rs56007204 1 GCST90944729 no MR -> candidate analysis
Body mass index 6e-23 rs522110 18 GCST009871 no MR -> candidate analysis
Body shape phenotype PC1 4e-21 rs2439823 1 GCST90832989 no MR -> candidate analysis
Body mass index (MTAG) 5e-21 rs2439823 2 GCST90179150 no MR -> candidate analysis
Metabolic syndrome 1e-20 rs10883027 3 GCST90444487 no MR -> candidate analysis
Body mass index (UKB data field 21001) 4e-20 rs2439823 1 GCST90468161 no MR -> candidate analysis
Educational attainment 7e-19 rs2477674 1 GCST90105038 no MR -> candidate analysis
…and 166 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 157 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
smoking initiation 0.6 common-variant locus no MR -> candidate analysis
metabolic syndrome 0.482 common-variant locus no MR -> candidate analysis
hypertensive disorder 0.482 common-variant locus no MR -> candidate analysis
essential hypertension 0.482 common-variant locus no MR -> candidate analysis
coronary atherosclerosis 0.48 common-variant locus no MR -> candidate analysis
cardiovascular disorder 0.47 common-variant locus no MR -> candidate analysis
respiratory system disorder 0.463 common-variant locus no MR -> candidate analysis
coronary artery disorder 0.434 common-variant locus no MR -> candidate analysis
duodenal ulcer 0.425 common-variant locus no MR -> candidate analysis
alcohol drinking 0.41 common-variant locus no MR -> candidate analysis
thyroiditis 0.361 common-variant locus no MR -> candidate analysis
digestive system disorder 0.36 common-variant locus no MR -> candidate analysis
secondary malignant neoplasm 0.316 common-variant locus no MR -> candidate analysis
dermatomycosis 0.277 common-variant locus no MR -> candidate analysis
Hematemesis 0.248 common-variant locus no MR -> candidate analysis

Of the 15 rows above, 15 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 not available — no ChEMBL target (undrugged)
gnomAD constraint pLI=4.9e-06, LOEUF=0.718 — LoF-tolerant
GWAS Catalog 105 unique SNPs / 240 rows
ClinVar 152 records; 1 pathogenic in sample of 30
PharmGKB/ClinPGx no annotations

Caveats declared by the tools

Sources

Provenance