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Apolipoprotein A-IV
Pathway / Lipid retention & oxidation

Apolipoprotein A-IV

APOA4protein

Apolipoprotein involved in lipid metabolism and stress-response pathways affecting coronary risk.

Pathway placement
Cascade stepLipid retention & oxidation
Confidencemedium
RationaleLipoprotein component; lipid metabolism modulation post-MI and stress-related risk.
Also acts inSystemic / off-pathway
Druggability
DruggableYes
Known drugs / candidates0
Small-molecule tractableNo
Antibody tractableYes
EnsemblENSG00000110244

Type I vs Type II discrimination

ScoresLow-confidence (proxy)
R — rupture / Type-I
38
C — confounder / Type-II
35
A — assay feasibility
68
E — evidence strength
17
T1DI (composite)
6
Specificity differential (R−C)+3.5
Confounder panel (Type-II drivers)
No confounder evidence retrieved.
Tier: light (literature co-occurrence proxy — lower confidence). See the discrimination table for all markers.

Assay & specimen

Class-level default (no specific cleared assay)— generic method inferred from analyte class; confirm against a specific product insert before use.
Specimen
Serum or plasma
Collection tube
Serum separator (gold/red-top, SST) · K2/K3-EDTA (lavender-top)
Method / principle
Sandwich immunoassay (ELISA) — research-grade unless a cleared assay exists
Reagent / substrate
Matched anti-target antibody pair (capture + labeled detection)
Platform
ELISA microplate or multiplex (Luminex/MSD)
Turnaround · availability
Send-out / research · Research-grade (no universal clinical assay)

Literature evidence(4)