CausalSentinel

Protein Dossier — BTNL8 (Butyrophilin-like protein 8)

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
Eye problems or disorders: Injury or trauma resulting in loss of vision 0.301 0.0873 5.69e-04 Wald ratio 1 cis NA
Eye problems or disorders: Diabetes related eye disease 0.264 0.0889 0.00295 Wald ratio 1 cis NA
Fractured bone site(s): Other bones 0.0983 0.0354 0.00546 Wald ratio 1 cis NA
Packed cell volume -0.187 0.0733 0.0108 Wald ratio 1 cis NA
Non-cancer illness code self-reported: pneumothorax 0.633 0.251 0.0116 Wald ratio 1 cis NA
Cough on most days -0.124 0.0521 0.0171 Wald ratio 1 cis NA
Non-cancer illness code self-reported: pulmonary embolism (with or without) dvt 0.173 0.0842 0.0394 Wald ratio 1 cis NA
Depressive symptoms -0.0293 0.0147 0.0455 Wald ratio 1 cis NA
Fasting insulin -0.026 0.0132 0.0486 Wald ratio 1 cis NA
Non-cancer illness code self-reported: hyperthyroidism or thyrotoxicosis -0.276 0.141 0.0493 Wald ratio 1 cis NA
Triglycerides -0.0366 0.019 0.0545 Wald ratio 1 cis NA
Vascular or heart problems diagnosed by doctor: Angina -0.107 0.0561 0.0564 Wald ratio 1 cis NA
…and 90 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

30 association rows across 22 traits (20 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
Butyrophilin-like protein 8 levels 2e-60 rs201210185 2 GCST90246756 no MR -> candidate analysis
Serum levels of protein BTNL8 5e-51 rs2387717 1 GCST90090457 no MR -> candidate analysis
high density lipoprotein cholesterol (HDLC, mean, inv-norm t 2e-43 rs188238483 2 GCST90475352 no MR -> candidate analysis
high density lipoprotein cholesterol (HDLC, maximum, inv-nor 4e-38 rs188238483 2 GCST90475348 no MR -> candidate analysis
high density lipoprotein cholesterol (HDLC, minimm, inv-norm 5e-36 rs188238483 2 GCST90475356 no MR -> candidate analysis
FLT4 protein levels 2e-17 rs249356 2 GCST90469252 no MR -> candidate analysis
Butyrophilin-like protein 9 levels 5e-17 rs138692142 1 GCST90246757 no MR -> candidate analysis
High density lipoprotein cholesterol levels 8e-17 rs138692142 3 GCST90239649 no MR -> candidate analysis
Butyrophilin-like protein 8 level in Chronic kidney disease 2e-13 rs34030001 1 GCST90239160 no MR -> candidate analysis
MEP1B protein levels 2e-13 rs576925502 1 GCST90469888 no MR -> candidate analysis
Apolipoprotein A levels (UKB data field 30630) 7e-13 rs188238483 1 GCST90468061 no MR -> candidate analysis
HDL cholesterol 4e-10 rs188238483 1 GCST90018956 MR: beta=-0.0132, p=0.497 (cis)
…and 10 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 65 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
enteritis 0.267 common-variant locus no MR -> candidate analysis
benign neoplasm of spinal cord 0.203 common-variant locus no MR -> candidate analysis

Of the 2 rows above, 2 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=6.4e-05, LOEUF=0.871 — LoF-tolerant
GWAS Catalog 39 unique SNPs / 78 rows
ClinVar 125 records; 2 pathogenic in sample of 30
PharmGKB/ClinPGx no annotations

Caveats declared by the tools

Sources

Provenance